diff options
| author | J. Bruce Fields <bfields@redhat.com> | 2015-02-02 11:29:29 -0500 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2015-02-02 11:29:29 -0500 |
| commit | a584143b01ce69803116ae8d0a4db382acc728d7 (patch) | |
| tree | 002733709647fa1e17683a9d21dbc23ae99e3d2d | |
| parent | 4c94e13e9caed09103419c087f436d79f9d2faba (diff) | |
| parent | 8116bf4cb62d337c953cfa5369ef4cf83e73140c (diff) | |
| download | op-kernel-dev-a584143b01ce69803116ae8d0a4db382acc728d7.zip op-kernel-dev-a584143b01ce69803116ae8d0a4db382acc728d7.tar.gz | |
Merge branch 'locks-3.20' of git://git.samba.org/jlayton/linux into for-3.20
Christoph's block pnfs patches have some minor dependencies on these
lock patches.
328 files changed, 3749 insertions, 2117 deletions
@@ -51,6 +51,7 @@ Greg Kroah-Hartman <gregkh@suse.de> Greg Kroah-Hartman <greg@kroah.com> Henk Vergonet <Henk.Vergonet@gmail.com> Henrik Kretzschmar <henne@nachtwindheim.de> +Henrik Rydberg <rydberg@bitmath.org> Herbert Xu <herbert@gondor.apana.org.au> Jacob Shin <Jacob.Shin@amd.com> James Bottomley <jejb@mulgrave.(none)> diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 9bffdfc..85b0221 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -66,6 +66,8 @@ fwmark_reflect - BOOLEAN route/max_size - INTEGER Maximum number of routes allowed in the kernel. Increase this when using large numbers of interfaces and/or routes. + From linux kernel 3.6 onwards, this is deprecated for ipv4 + as route cache is no longer used. neigh/default/gc_thresh1 - INTEGER Minimum number of entries to keep. Garbage collector will not diff --git a/Documentation/target/tcm_mod_builder.py b/Documentation/target/tcm_mod_builder.py index 230ce71..2b47704 100755 --- a/Documentation/target/tcm_mod_builder.py +++ b/Documentation/target/tcm_mod_builder.py @@ -389,9 +389,6 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += " .release_cmd = " + fabric_mod_name + "_release_cmd,\n" buf += " .shutdown_session = " + fabric_mod_name + "_shutdown_session,\n" buf += " .close_session = " + fabric_mod_name + "_close_session,\n" - buf += " .stop_session = " + fabric_mod_name + "_stop_session,\n" - buf += " .fall_back_to_erl0 = " + fabric_mod_name + "_reset_nexus,\n" - buf += " .sess_logged_in = " + fabric_mod_name + "_sess_logged_in,\n" buf += " .sess_get_index = " + fabric_mod_name + "_sess_get_index,\n" buf += " .sess_get_initiator_sid = NULL,\n" buf += " .write_pending = " + fabric_mod_name + "_write_pending,\n" @@ -402,7 +399,7 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += " .queue_data_in = " + fabric_mod_name + "_queue_data_in,\n" buf += " .queue_status = " + fabric_mod_name + "_queue_status,\n" buf += " .queue_tm_rsp = " + fabric_mod_name + "_queue_tm_rsp,\n" - buf += " .is_state_remove = " + fabric_mod_name + "_is_state_remove,\n" + buf += " .aborted_task = " + fabric_mod_name + "_aborted_task,\n" buf += " /*\n" buf += " * Setup function pointers for generic logic in target_core_fabric_configfs.c\n" buf += " */\n" @@ -428,7 +425,7 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += " /*\n" buf += " * Register the top level struct config_item_type with TCM core\n" buf += " */\n" - buf += " fabric = target_fabric_configfs_init(THIS_MODULE, \"" + fabric_mod_name[4:] + "\");\n" + buf += " fabric = target_fabric_configfs_init(THIS_MODULE, \"" + fabric_mod_name + "\");\n" buf += " if (IS_ERR(fabric)) {\n" buf += " printk(KERN_ERR \"target_fabric_configfs_init() failed\\n\");\n" buf += " return PTR_ERR(fabric);\n" @@ -595,7 +592,7 @@ def tcm_mod_dump_fabric_ops(proto_ident, fabric_mod_dir_var, fabric_mod_name): if re.search('get_fabric_name', fo): buf += "char *" + fabric_mod_name + "_get_fabric_name(void)\n" buf += "{\n" - buf += " return \"" + fabric_mod_name[4:] + "\";\n" + buf += " return \"" + fabric_mod_name + "\";\n" buf += "}\n\n" bufi += "char *" + fabric_mod_name + "_get_fabric_name(void);\n" continue @@ -820,27 +817,6 @@ def tcm_mod_dump_fabric_ops(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += "}\n\n" bufi += "void " + fabric_mod_name + "_close_session(struct se_session *);\n" - if re.search('stop_session\)\(', fo): - buf += "void " + fabric_mod_name + "_stop_session(struct se_session *se_sess, int sess_sleep , int conn_sleep)\n" - buf += "{\n" - buf += " return;\n" - buf += "}\n\n" - bufi += "void " + fabric_mod_name + "_stop_session(struct se_session *, int, int);\n" - - if re.search('fall_back_to_erl0\)\(', fo): - buf += "void " + fabric_mod_name + "_reset_nexus(struct se_session *se_sess)\n" - buf += "{\n" - buf += " return;\n" - buf += "}\n\n" - bufi += "void " + fabric_mod_name + "_reset_nexus(struct se_session *);\n" - - if re.search('sess_logged_in\)\(', fo): - buf += "int " + fabric_mod_name + "_sess_logged_in(struct se_session *se_sess)\n" - buf += "{\n" - buf += " return 0;\n" - buf += "}\n\n" - bufi += "int " + fabric_mod_name + "_sess_logged_in(struct se_session *);\n" - if re.search('sess_get_index\)\(', fo): buf += "u32 " + fabric_mod_name + "_sess_get_index(struct se_session *se_sess)\n" buf += "{\n" @@ -898,19 +874,18 @@ def tcm_mod_dump_fabric_ops(proto_ident, fabric_mod_dir_var, fabric_mod_name): bufi += "int " + fabric_mod_name + "_queue_status(struct se_cmd *);\n" if re.search('queue_tm_rsp\)\(', fo): - buf += "int " + fabric_mod_name + "_queue_tm_rsp(struct se_cmd *se_cmd)\n" + buf += "void " + fabric_mod_name + "_queue_tm_rsp(struct se_cmd *se_cmd)\n" buf += "{\n" - buf += " return 0;\n" + buf += " return;\n" buf += "}\n\n" - bufi += "int " + fabric_mod_name + "_queue_tm_rsp(struct se_cmd *);\n" + bufi += "void " + fabric_mod_name + "_queue_tm_rsp(struct se_cmd *);\n" - if re.search('is_state_remove\)\(', fo): - buf += "int " + fabric_mod_name + "_is_state_remove(struct se_cmd *se_cmd)\n" + if re.search('aborted_task\)\(', fo): + buf += "void " + fabric_mod_name + "_aborted_task(struct se_cmd *se_cmd)\n" buf += "{\n" - buf += " return 0;\n" + buf += " return;\n" buf += "}\n\n" - bufi += "int " + fabric_mod_name + "_is_state_remove(struct se_cmd *);\n" - + bufi += "void " + fabric_mod_name + "_aborted_task(struct se_cmd *);\n" ret = p.write(buf) if ret: @@ -1018,11 +993,11 @@ def main(modname, proto_ident): tcm_mod_build_kbuild(fabric_mod_dir, fabric_mod_name) tcm_mod_build_kconfig(fabric_mod_dir, fabric_mod_name) - input = raw_input("Would you like to add " + fabric_mod_name + "to drivers/target/Makefile..? [yes,no]: ") + input = raw_input("Would you like to add " + fabric_mod_name + " to drivers/target/Makefile..? [yes,no]: ") if input == "yes" or input == "y": tcm_mod_add_kbuild(tcm_dir, fabric_mod_name) - input = raw_input("Would you like to add " + fabric_mod_name + "to drivers/target/Kconfig..? [yes,no]: ") + input = raw_input("Would you like to add " + fabric_mod_name + " to drivers/target/Kconfig..? [yes,no]: ") if input == "yes" or input == "y": tcm_mod_add_kconfig(tcm_dir, fabric_mod_name) diff --git a/Documentation/thermal/cpu-cooling-api.txt b/Documentation/thermal/cpu-cooling-api.txt index fca24c9..753e47c 100644 --- a/Documentation/thermal/cpu-cooling-api.txt +++ b/Documentation/thermal/cpu-cooling-api.txt @@ -3,7 +3,7 @@ CPU cooling APIs How To Written by Amit Daniel Kachhap <amit.kachhap@linaro.org> -Updated: 12 May 2012 +Updated: 6 Jan 2015 Copyright (c) 2012 Samsung Electronics Co., Ltd(http://www.samsung.com) @@ -25,7 +25,18 @@ the user. The registration APIs returns the cooling device pointer. clip_cpus: cpumask of cpus where the frequency constraints will happen. -1.1.2 void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev) +1.1.2 struct thermal_cooling_device *of_cpufreq_cooling_register( + struct device_node *np, const struct cpumask *clip_cpus) + + This interface function registers the cpufreq cooling device with + the name "thermal-cpufreq-%x" linking it with a device tree node, in + order to bind it via the thermal DT code. This api can support multiple + instances of cpufreq cooling devices. + + np: pointer to the cooling device device tree node + clip_cpus: cpumask of cpus where the frequency constraints will happen. + +1.1.3 void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev) This interface function unregisters the "thermal-cpufreq-%x" cooling device. diff --git a/MAINTAINERS b/MAINTAINERS index ddb9ac8..ab6610e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -724,15 +724,15 @@ F: include/uapi/linux/apm_bios.h F: drivers/char/apm-emulation.c APPLE BCM5974 MULTITOUCH DRIVER -M: Henrik Rydberg <rydberg@euromail.se> +M: Henrik Rydberg <rydberg@bitmath.org> L: linux-input@vger.kernel.org -S: Maintained +S: Odd fixes F: drivers/input/mouse/bcm5974.c APPLE SMC DRIVER -M: Henrik Rydberg <rydberg@euromail.se> +M: Henrik Rydberg <rydberg@bitmath.org> L: lm-sensors@lm-sensors.org -S: Maintained +S: Odd fixes F: drivers/hwmon/applesmc.c APPLETALK NETWORK LAYER @@ -2259,6 +2259,7 @@ F: drivers/gpio/gpio-bt8xx.c BTRFS FILE SYSTEM M: Chris Mason <clm@fb.com> M: Josef Bacik <jbacik@fb.com> +M: David Sterba <dsterba@suse.cz> L: linux-btrfs@vger.kernel.org W: http://btrfs.wiki.kernel.org/ Q: http://patchwork.kernel.org/project/linux-btrfs/list/ @@ -4748,7 +4749,7 @@ S: Supported F: drivers/scsi/ipr.* IBM Power Virtual Ethernet Device Driver -M: Santiago Leon <santil@linux.vnet.ibm.com> +M: Thomas Falcon <tlfalcon@linux.vnet.ibm.com> L: netdev@vger.kernel.org S: Supported F: drivers/net/ethernet/ibm/ibmveth.* @@ -4940,10 +4941,10 @@ F: include/uapi/linux/input.h F: include/linux/input/ INPUT MULTITOUCH (MT) PROTOCOL -M: Henrik Rydberg <rydberg@euromail.se> +M: Henrik Rydberg <rydberg@bitmath.org> L: linux-input@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/rydberg/input-mt.git -S: Maintained +S: Odd fixes F: Documentation/input/multi-touch-protocol.txt F: drivers/input/input-mt.c K: \b(ABS|SYN)_MT_ @@ -5279,6 +5280,15 @@ W: www.open-iscsi.org Q: http://patchwork.kernel.org/project/linux-rdma/list/ F: drivers/infiniband/ulp/iser/ +ISCSI EXTENSIONS FOR RDMA (ISER) TARGET +M: Sagi Grimberg <sagig@mellanox.com> +T: git git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending.git master +L: linux-rdma@vger.kernel.org +L: target-devel@vger.kernel.org +S: Supported +W: http://www.linux-iscsi.org +F: drivers/infiniband/ulp/isert + ISDN SUBSYSTEM M: Karsten Keil <isdn@linux-pingi.de> L: isdn4linux@listserv.isdn4linux.de (subscribers-only) @@ -9533,7 +9543,8 @@ F: drivers/platform/x86/thinkpad_acpi.c TI BANDGAP AND THERMAL DRIVER M: Eduardo Valentin <edubezval@gmail.com> L: linux-pm@vger.kernel.org -S: Supported +L: linux-omap@vger.kernel.org +S: Maintained F: drivers/thermal/ti-soc-thermal/ TI CLOCK DRIVER @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 19 SUBLEVEL = 0 -EXTRAVERSION = -rc3 +EXTRAVERSION = -rc4 NAME = Diseased Newt # *DOCUMENTATION* @@ -391,6 +391,7 @@ USERINCLUDE := \ # Needed to be compatible with the O= option LINUXINCLUDE := \ -I$(srctree)/arch/$(hdr-arch)/include \ + -Iarch/$(hdr-arch)/include/generated/uapi \ -Iarch/$(hdr-arch)/include/generated \ $(if $(KBUILD_SRC), -I$(srctree)/include) \ -Iinclude \ diff --git a/arch/arm/boot/dts/imx6sx-sdb.dts b/arch/arm/boot/dts/imx6sx-sdb.dts index 1e6e5cc..8c1febd 100644 --- a/arch/arm/boot/dts/imx6sx-sdb.dts +++ b/arch/arm/boot/dts/imx6sx-sdb.dts @@ -159,13 +159,28 @@ pinctrl-0 = <&pinctrl_enet1>; phy-supply = <®_enet_3v3>; phy-mode = "rgmii"; + phy-handle = <ðphy1>; status = "okay"; + + mdio { + #address-cells = <1>; + #size-cells = <0>; + + ethphy1: ethernet-phy@0 { + reg = <0>; + }; + + ethphy2: ethernet-phy@1 { + reg = <1>; + }; + }; }; &fec2 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_enet2>; phy-mode = "rgmii"; + phy-handle = <ðphy2>; status = "okay"; }; diff --git a/arch/arm/boot/dts/vf610-twr.dts b/arch/arm/boot/dts/vf610-twr.dts index a0f7621..f2b64b1 100644 --- a/arch/arm/boot/dts/vf610-twr.dts +++ b/arch/arm/boot/dts/vf610-twr.dts @@ -129,13 +129,28 @@ &fec0 { phy-mode = "rmii"; + phy-handle = <ðphy0>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_fec0>; status = "okay"; + + mdio { + #address-cells = <1>; + #size-cells = <0>; + + ethphy0: ethernet-phy@0 { + reg = <0>; + }; + + ethphy1: ethernet-phy@1 { + reg = <1>; + }; + }; }; &fec1 { phy-mode = "rmii"; + phy-handle = <ðphy1>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_fec1>; status = "okay"; diff --git a/arch/arm/include/uapi/asm/unistd.h b/arch/arm/include/uapi/asm/unistd.h index 705bb76..0c3f5a0 100644 --- a/arch/arm/include/uapi/asm/unistd.h +++ b/arch/arm/include/uapi/asm/unistd.h @@ -413,6 +413,7 @@ #define __NR_getrandom (__NR_SYSCALL_BASE+384) #define __NR_memfd_create (__NR_SYSCALL_BASE+385) #define __NR_bpf (__NR_SYSCALL_BASE+386) +#define __NR_execveat (__NR_SYSCALL_BASE+387) /* * The following SWIs are ARM private. diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S index e51833f..05745eb 100644 --- a/arch/arm/kernel/calls.S +++ b/arch/arm/kernel/calls.S @@ -396,6 +396,7 @@ CALL(sys_getrandom) /* 385 */ CALL(sys_memfd_create) CALL(sys_bpf) + CALL(sys_execveat) #ifndef syscalls_counted .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls #define syscalls_counted diff --git a/arch/arm/kernel/perf_regs.c b/arch/arm/kernel/perf_regs.c index 6e4379c..592dda3 100644 --- a/arch/arm/kernel/perf_regs.c +++ b/arch/arm/kernel/perf_regs.c @@ -28,3 +28,11 @@ u64 perf_reg_abi(struct task_struct *task) { return PERF_SAMPLE_REGS_ABI_32; } + +void perf_get_regs_user(struct perf_regs *regs_user, + struct pt_regs *regs, + struct pt_regs *regs_user_copy) +{ + regs_user->regs = task_pt_regs(current); + regs_user->abi = perf_reg_abi(current); +} diff --git a/arch/arm/mm/dump.c b/arch/arm/mm/dump.c index 5942493..9fe8e24 100644 --- a/arch/arm/mm/dump.c +++ b/arch/arm/mm/dump.c @@ -220,9 +220,6 @@ static void note_page(struct pg_state *st, unsigned long addr, unsigned level, u static const char units[] = "KMGTPE"; u64 prot = val & pg_level[level].mask; - if (addr < USER_PGTABLES_CEILING) - return; - if (!st->level) { st->level = level; st->current_prot = prot; @@ -308,15 +305,13 @@ static void walk_pgd(struct seq_file *m) pgd_t *pgd = swapper_pg_dir; struct pg_state st; unsigned long addr; - unsigned i, pgdoff = USER_PGTABLES_CEILING / PGDIR_SIZE; + unsigned i; memset(&st, 0, sizeof(st)); st.seq = m; st.marker = address_markers; - pgd += pgdoff; - - for (i = pgdoff; i < PTRS_PER_PGD; i++, pgd++) { + for (i = 0; i < PTRS_PER_PGD; i++, pgd++) { addr = i * PGDIR_SIZE; if (!pgd_none(*pgd)) { walk_pud(&st, pgd, addr); diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 98ad9c7..2495c8c 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -658,8 +658,8 @@ static struct section_perm ro_perms[] = { .start = (unsigned long)_stext, .end = (unsigned long)__init_begin, #ifdef CONFIG_ARM_LPAE - .mask = ~PMD_SECT_RDONLY, - .prot = PMD_SECT_RDONLY, + .mask = ~L_PMD_SECT_RDONLY, + .prot = L_PMD_SECT_RDONLY, #else .mask = ~(PMD_SECT_APX | PMD_SECT_AP_WRITE), .prot = PMD_SECT_APX | PMD_SECT_AP_WRITE, diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index cda7c40..4e6ef89 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -1329,8 +1329,8 @@ static void __init kmap_init(void) static void __init map_lowmem(void) { struct memblock_region *reg; - unsigned long kernel_x_start = round_down(__pa(_stext), SECTION_SIZE); - unsigned long kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE); + phys_addr_t kernel_x_start = round_down(__pa(_stext), SECTION_SIZE); + phys_addr_t kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE); /* Map all the lowmem memory banks. */ for_each_memblock(memory, reg) { diff --git a/arch/arm64/include/asm/arch_timer.h b/arch/arm64/include/asm/arch_timer.h index b1fa4e6..fbe0ca3 100644 --- a/arch/arm64/include/asm/arch_timer.h +++ b/arch/arm64/include/asm/arch_timer.h @@ -21,6 +21,7 @@ #include <asm/barrier.h> +#include <linux/bug.h> #include <linux/init.h> #include <linux/types.h> diff --git a/arch/arm64/include/asm/cpu.h b/arch/arm64/include/asm/cpu.h index ace7068..8e797b2 100644 --- a/arch/arm64/include/asm/cpu.h +++ b/arch/arm64/include/asm/cpu.h @@ -39,6 +39,7 @@ struct cpuinfo_arm64 { u64 reg_id_aa64pfr0; u64 reg_id_aa64pfr1; + u32 reg_id_dfr0; u32 reg_id_isar0; u32 reg_id_isar1; u32 reg_id_isar2; @@ -51,6 +52,10 @@ struct cpuinfo_arm64 { u32 reg_id_mmfr3; u32 reg_id_pfr0; u32 reg_id_pfr1; + + u32 reg_mvfr0; + u32 reg_mvfr1; + u32 reg_mvfr2; }; DECLARE_PER_CPU(struct cpuinfo_arm64, cpu_data); diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h index 8127e45..865a7e2 100644 --- a/arch/arm64/include/asm/kvm_emulate.h +++ b/arch/arm64/include/asm/kvm_emulate.h @@ -41,6 +41,8 @@ void kvm_inject_pabt(struct kvm_vcpu *vcpu, unsigned long addr); static inline void vcpu_reset_hcr(struct kvm_vcpu *vcpu) { vcpu->arch.hcr_el2 = HCR_GUEST_FLAGS; + if (test_bit(KVM_ARM_VCPU_EL1_32BIT, vcpu->arch.features)) + vcpu->arch.hcr_el2 &= ~HCR_RW; } static inline unsigned long *vcpu_pc(const struct kvm_vcpu *vcpu) diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index 286b1be..f9be30e 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -31,6 +31,7 @@ #include <asm/fpsimd.h> #include <asm/hw_breakpoint.h> +#include <asm/pgtable-hwdef.h> #include <asm/ptrace.h> #include <asm/types.h> @@ -123,9 +124,6 @@ struct task_struct; /* Free all resources held by a thread. */ extern void release_thread(struct task_struct *); -/* Prepare to copy thread state - unlazy all lazy status */ -#define prepare_to_copy(tsk) do { } while (0) - unsigned long get_wchan(struct task_struct *p); #define cpu_relax() barrier() diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h index 49c9aef..b780c6c 100644 --- a/arch/arm64/include/asm/unistd.h +++ b/arch/arm64/include/asm/unistd.h @@ -44,7 +44,7 @@ #define __ARM_NR_compat_cacheflush (__ARM_NR_COMPAT_BASE+2) #define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE+5) -#define __NR_compat_syscalls 386 +#define __NR_compat_syscalls 387 #endif #define __ARCH_WANT_SYS_CLONE diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c index 57b6417..07d435c 100644 --- a/arch/arm64/kernel/cpuinfo.c +++ b/arch/arm64/kernel/cpuinfo.c @@ -147,6 +147,7 @@ static void cpuinfo_sanity_check(struct cpuinfo_arm64 *cur) * If we have AArch32, we care about 32-bit features for compat. These * registers should be RES0 otherwise. */ + diff |= CHECK(id_dfr0, boot, cur, cpu); diff |= CHECK(id_isar0, boot, cur, cpu); diff |= CHECK(id_isar1, boot, cur, cpu); diff |= CHECK(id_isar2, boot, cur, cpu); @@ -165,6 +166,10 @@ static void cpuinfo_sanity_check(struct cpuinfo_arm64 *cur) diff |= CHECK(id_pfr0, boot, cur, cpu); diff |= CHECK(id_pfr1, boot, cur, cpu); + diff |= CHECK(mvfr0, boot, cur, cpu); + diff |= CHECK(mvfr1, boot, cur, cpu); + diff |= CHECK(mvfr2, boot, cur, cpu); + /* * Mismatched CPU features are a recipe for disaster. Don't even * pretend to support them. @@ -189,6 +194,7 @@ static void __cpuinfo_store_cpu(struct cpuinfo_arm64 *info) info->reg_id_aa64pfr0 = read_cpuid(ID_AA64PFR0_EL1); info->reg_id_aa64pfr1 = read_cpuid(ID_AA64PFR1_EL1); + info->reg_id_dfr0 = read_cpuid(ID_DFR0_EL1); info->reg_id_isar0 = read_cpuid(ID_ISAR0_EL1); info->reg_id_isar1 = read_cpuid(ID_ISAR1_EL1); info->reg_id_isar2 = read_cpuid(ID_ISAR2_EL1); @@ -202,6 +208,10 @@ static void __cpuinfo_store_cpu(struct cpuinfo_arm64 *info) info->reg_id_pfr0 = read_cpuid(ID_PFR0_EL1); info->reg_id_pfr1 = read_cpuid(ID_PFR1_EL1); + info->reg_mvfr0 = read_cpuid(MVFR0_EL1); + info->reg_mvfr1 = read_cpuid(MVFR1_EL1); + info->reg_mvfr2 = read_cpuid(MVFR2_EL1); + cpuinfo_detect_icache_policy(info); check_local_cpu_errata(); diff --git a/arch/arm64/kernel/efi.c b/arch/arm64/kernel/efi.c index 6fac253..2bb4347 100644 --- a/arch/arm64/kernel/efi.c +++ b/arch/arm64/kernel/efi.c @@ -326,6 +326,7 @@ void __init efi_idmap_init(void) /* boot time idmap_pg_dir is incomplete, so fill in missing parts */ efi_setup_idmap(); + early_memunmap(memmap.map, memmap.map_end - memmap.map); } static int __init remap_region(efi_memory_desc_t *md, void **new) @@ -380,7 +381,6 @@ static int __init arm64_enter_virtual_mode(void) } mapsize = memmap.map_end - memmap.map; - early_memunmap(memmap.map, mapsize); if (efi_runtime_disabled()) { pr_info("EFI runtime services will be disabled.\n"); diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c index fd027b1..9b6f71d 100644 --- a/arch/arm64/kernel/module.c +++ b/arch/arm64/kernel/module.c @@ -25,6 +25,7 @@ #include <linux/mm.h> #include <linux/moduleloader.h> #include <linux/vmalloc.h> +#include <asm/alternative.h> #include <asm/insn.h> #include <asm/sections.h> diff --git a/arch/arm64/kernel/perf_regs.c b/arch/arm64/kernel/perf_regs.c index 6762ad7..3f62b35 100644 --- a/arch/arm64/kernel/perf_regs.c +++ b/arch/arm64/kernel/perf_regs.c @@ -50,3 +50,11 @@ u64 perf_reg_abi(struct task_struct *task) else return PERF_SAMPLE_REGS_ABI_64; } + +void perf_get_regs_user(struct perf_regs *regs_user, + struct pt_regs *regs, + struct pt_regs *regs_user_copy) +{ + regs_user->regs = task_pt_regs(current); + regs_user->abi = perf_reg_abi(current); +} diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index b809911..20fe293 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -402,6 +402,7 @@ void __init setup_arch(char **cmdline_p) request_standard_resources(); efi_idmap_init(); + early_ioremap_reset(); unflatten_device_tree(); diff --git a/arch/arm64/kernel/smp_spin_table.c b/arch/arm64/kernel/smp_spin_table.c index 4f93c67..14944e5 100644 --- a/arch/arm64/kernel/smp_spin_table.c +++ b/arch/arm64/kernel/smp_spin_table.c @@ -25,6 +25,7 @@ #include <asm/cacheflush.h> #include <asm/cpu_ops.h> #include <asm/cputype.h> +#include <asm/io.h> #include <asm/smp_plat.h> extern void secondary_holding_pen(void); diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S index fbe909f..c3ca89c 100644 --- a/arch/arm64/kvm/hyp.S +++ b/arch/arm64/kvm/hyp.S @@ -1014,6 +1014,7 @@ ENTRY(__kvm_tlb_flush_vmid_ipa) * Instead, we invalidate Stage-2 for this IPA, and the * whole of Stage-1. Weep... */ + lsr x1, x1, #12 tlbi ipas2e1is, x1 /* * We have to ensure completion of the invalidation at Stage-2, diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c index 70a7816..0b43265 100644 --- a/arch/arm64/kvm/reset.c +++ b/arch/arm64/kvm/reset.c @@ -90,7 +90,6 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu) if (!cpu_has_32bit_el1()) return -EINVAL; cpu_reset = &default_regs_reset32; - vcpu->arch.hcr_el2 &= ~HCR_RW; } else { cpu_reset = &default_regs_reset; } diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c index 6f4bac9..23eada7 100644 --- a/arch/blackfin/mach-bf533/boards/stamp.c +++ b/arch/blackfin/mach-bf533/boards/stamp.c @@ -7,6 +7,7 @@ */ #include <linux/device.h> +#include <linux/delay.h> #include <linux/platform_device.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index 615ef81..e795cb8 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c @@ -893,13 +893,13 @@ static int _acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu) } /* wrapper to silence section mismatch warning */ -int __ref acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu) +int __ref acpi_map_cpu(acpi_handle handle, int physid, int *pcpu) { return _acpi_map_lsapic(handle, physid, pcpu); } -EXPORT_SYMBOL(acpi_map_lsapic); +EXPORT_SYMBOL(acpi_map_cpu); -int acpi_unmap_lsapic(int cpu) +int acpi_unmap_cpu(int cpu) { ia64_cpu_to_sapicid[cpu] = -1; set_cpu_present(cpu, false); @@ -910,8 +910,7 @@ int acpi_unmap_lsapic(int cpu) return (0); } - -EXPORT_SYMBOL(acpi_unmap_lsapic); +EXPORT_SYMBOL(acpi_unmap_cpu); #endif /* CONFIG_ACPI_HOTPLUG_CPU */ #ifdef CONFIG_ACPI_NUMA diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h index 75e75d7..244e0db 100644 --- a/arch/m68k/include/asm/unistd.h +++ b/arch/m68k/include/asm/unistd.h @@ -4,7 +4,7 @@ #include <uapi/asm/unistd.h> -#define NR_syscalls 355 +#define NR_syscalls 356 #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_OLD_STAT diff --git a/arch/m68k/include/uapi/asm/unistd.h b/arch/m68k/include/uapi/asm/unistd.h index 2c1bec9..61fb6cb 100644 --- a/arch/m68k/include/uapi/asm/unistd.h +++ b/arch/m68k/include/uapi/asm/unistd.h @@ -360,5 +360,6 @@ #define __NR_getrandom 352 #define __NR_memfd_create 353 #define __NR_bpf 354 +#define __NR_execveat 355 #endif /* _UAPI_ASM_M68K_UNISTD_H_ */ diff --git a/arch/m68k/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S index 2ca219e..a0ec430 100644 --- a/arch/m68k/kernel/syscalltable.S +++ b/arch/m68k/kernel/syscalltable.S @@ -375,4 +375,5 @@ ENTRY(sys_call_table) .long sys_getrandom .long sys_memfd_create .long sys_bpf + .long sys_execveat /* 355 */ diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h index ebc4f16..0be6c68 100644 --- a/arch/powerpc/include/asm/thread_info.h +++ b/arch/powerpc/include/asm/thread_info.h @@ -23,9 +23,9 @@ #define THREAD_SIZE (1 << THREAD_SHIFT) #ifdef CONFIG_PPC64 -#define CURRENT_THREAD_INFO(dest, sp) clrrdi dest, sp, THREAD_SHIFT +#define CURRENT_THREAD_INFO(dest, sp) stringify_in_c(clrrdi dest, sp, THREAD_SHIFT) #else -#define CURRENT_THREAD_INFO(dest, sp) rlwinm dest, sp, 0, 0, 31-THREAD_SHIFT +#define CURRENT_THREAD_INFO(dest, sp) stringify_in_c(rlwinm dest, sp, 0, 0, 31-THREAD_SHIFT) #endif #ifndef __ASSEMBLY__ @@ -71,12 +71,13 @@ struct thread_info { #define THREAD_SIZE_ORDER (THREAD_SHIFT - PAGE_SHIFT) /* how to get the thread information struct from C */ -register unsigned long __current_r1 asm("r1"); static inline struct thread_info *current_thread_info(void) { - /* gcc4, at least, is smart enough to turn this into a single - * rlwinm for ppc32 and clrrdi for ppc64 */ - return (struct thread_info *)(__current_r1 & ~(THREAD_SIZE-1)); + unsigned long val; + + asm (CURRENT_THREAD_INFO(%0,1) : "=r" (val)); + + return (struct thread_info *)val; } #endif /* __ASSEMBLY__ */ diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S index 54eca8b..0509bca 100644 --- a/arch/powerpc/platforms/powernv/opal-wrappers.S +++ b/arch/powerpc/platforms/powernv/opal-wrappers.S @@ -40,7 +40,6 @@ BEGIN_FTR_SECTION; \ b 1f; \ END_FTR_SECTION(0, 1); \ ld r12,opal_tracepoint_refcount@toc(r2); \ - std r12,32(r1); \ cmpdi r12,0; \ bne- LABEL; \ 1: diff --git a/arch/s390/hypfs/hypfs_vm.c b/arch/s390/hypfs/hypfs_vm.c index 32040ac..afbe079 100644 --- a/arch/s390/hypfs/hypfs_vm.c +++ b/arch/s390/hypfs/hypfs_vm.c @@ -231,7 +231,7 @@ failed: struct dbfs_d2fc_hdr { u64 len; /* Length of d2fc buffer without header */ u16 version; /* Version of header */ - char tod_ext[16]; /* TOD clock for d2fc */ + char tod_ext[STORE_CLOCK_EXT_SIZE]; /* TOD clock for d2fc */ u64 count; /* Number of VM guests in d2fc buffer */ char reserved[30]; } __attribute__ ((packed)); diff --git a/arch/s390/include/asm/irqflags.h b/arch/s390/include/asm/irqflags.h index 37b9091..16aa0c7 100644 --- a/arch/s390/include/asm/irqflags.h +++ b/arch/s390/include/asm/irqflags.h @@ -36,7 +36,7 @@ static inline notrace void __arch_local_irq_ssm(unsigned long flags) static inline notrace unsigned long arch_local_save_flags(void) { - return __arch_local_irq_stosm(0x00); + return __arch_local_irq_stnsm(0xff); } static inline notrace unsigned long arch_local_irq_save(void) diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h index 8beee1c..98eb2a5 100644 --- a/arch/s390/include/asm/timex.h +++ b/arch/s390/include/asm/timex.h @@ -67,20 +67,22 @@ static inline void local_tick_enable(unsigned long long comp) set_clock_comparator(S390_lowcore.clock_comparator); } -#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */ +#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */ +#define STORE_CLOCK_EXT_SIZE 16 /* stcke writes 16 bytes */ typedef unsigned long long cycles_t; -static inline void get_tod_clock_ext(char clk[16]) +static inline void get_tod_clock_ext(char *clk) { - typedef struct { char _[sizeof(clk)]; } addrtype; + typedef struct { char _[STORE_CLOCK_EXT_SIZE]; } addrtype; asm volatile("stcke %0" : "=Q" (*(addrtype *) clk) : : "cc"); } static inline unsigned long long get_tod_clock(void) { - unsigned char clk[16]; + unsigned char clk[STORE_CLOCK_EXT_SIZE]; + get_tod_clock_ext(clk); return *((unsigned long long *)&clk[1]); } diff --git a/arch/s390/include/uapi/asm/unistd.h b/arch/s390/include/uapi/asm/unistd.h index 2b446cf..67878af 100644 --- a/arch/s390/include/uapi/asm/unistd.h +++ b/arch/s390/include/uapi/asm/unistd.h @@ -289,7 +289,8 @@ #define __NR_bpf 351 #define __NR_s390_pci_mmio_write 352 #define __NR_s390_pci_mmio_read 353 -#define NR_syscalls 354 +#define __NR_execveat 354 +#define NR_syscalls 355 /* * There are some system calls that are not present on 64 bit, some diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index a298724..939ec47 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -362,3 +362,4 @@ SYSCALL(sys_memfd_create,sys_memfd_create,compat_sys_memfd_create) /* 350 */ SYSCALL(sys_bpf,sys_bpf,compat_sys_bpf) SYSCALL(sys_ni_syscall,sys_s390_pci_mmio_write,compat_sys_s390_pci_mmio_write) SYSCALL(sys_ni_syscall,sys_s390_pci_mmio_read,compat_sys_s390_pci_mmio_read) +SYSCALL(sys_execveat,sys_execveat,compat_sys_execveat) diff --git a/arch/s390/kernel/uprobes.c b/arch/s390/kernel/uprobes.c index f6b3cd0..cc73280 100644 --- a/arch/s390/kernel/uprobes.c +++ b/arch/s390/kernel/uprobes.c @@ -48,6 +48,30 @@ bool arch_uprobe_xol_was_trapped(struct task_struct *tsk) return false; } +static int check_per_event(unsigned short cause, unsigned long control, + struct pt_regs *regs) +{ + if (!(regs->psw.mask & PSW_MASK_PER)) + return 0; + /* user space single step */ + if (control == 0) + return 1; + /* over indication for storage alteration */ + if ((control & 0x20200000) && (cause & 0x2000)) + return 1; + if (cause & 0x8000) { + /* all branches */ + if ((control & 0x80800000) == 0x80000000) + return 1; + /* branch into selected range */ + if (((control & 0x80800000) == 0x80800000) && + regs->psw.addr >= current->thread.per_user.start && + regs->psw.addr <= current->thread.per_user.end) + return 1; + } + return 0; +} + int arch_uprobe_post_xol(struct arch_uprobe *auprobe, struct pt_regs *regs) { int fixup = probe_get_fixup_type(auprobe->insn); @@ -71,9 +95,13 @@ int arch_uprobe_post_xol(struct arch_uprobe *auprobe, struct pt_regs *regs) if (regs->psw.addr - utask->xol_vaddr == ilen) regs->psw.addr = utask->vaddr + ilen; } - /* If per tracing was active generate trap */ - if (regs->psw.mask & PSW_MASK_PER) - do_per_trap(regs); + if (check_per_event(current->thread.per_event.cause, + current->thread.per_user.control, regs)) { + /* fix per address */ + current->thread.per_event.address = utask->vaddr; + /* trigger per event */ + set_pt_regs_flag(regs, PIF_PER_TRAP); + } return 0; } @@ -106,6 +134,7 @@ void arch_uprobe_abort_xol(struct arch_uprobe *auprobe, struct pt_regs *regs) clear_thread_flag(TIF_UPROBE_SINGLESTEP); regs->int_code = auprobe->saved_int_code; regs->psw.addr = current->utask->vaddr; + current->thread.per_event.address = current->utask->vaddr; } unsigned long arch_uretprobe_hijack_return_addr(unsigned long trampoline, @@ -146,17 +175,20 @@ static void adjust_psw_addr(psw_t *psw, unsigned long len) __rc; \ }) -#define emu_store_ril(ptr, input) \ +#define emu_store_ril(regs, ptr, input) \ ({ \ unsigned int mask = sizeof(*(ptr)) - 1; \ + __typeof__(ptr) __ptr = (ptr); \ int __rc = 0; \ \ if (!test_facility(34)) \ __rc = EMU_ILLEGAL_OP; \ - else if ((u64 __force)ptr & mask) \ + else if ((u64 __force)__ptr & mask) \ __rc = EMU_SPECIFICATION; \ - else if (put_user(*(input), ptr)) \ + else if (put_user(*(input), __ptr)) \ __rc = EMU_ADDRESSING; \ + if (__rc == 0) \ + sim_stor_event(regs, __ptr, mask + 1); \ __rc; \ }) @@ -198,6 +230,25 @@ union split_register { }; /* + * If user per registers are setup to trace storage alterations and an + * emulated store took place on a fitting address a user trap is generated. + */ +static void sim_stor_event(struct pt_regs *regs, void *addr, int len) +{ + if (!(regs->psw.mask & PSW_MASK_PER)) + return; + if (!(current->thread.per_user.control & PER_EVENT_STORE)) + return; + if ((void *)current->thread.per_user.start > (addr + len)) + return; + if ((void *)current->thread.per_user.end < addr) + return; + current->thread.per_event.address = regs->psw.addr; + current->thread.per_event.cause = PER_EVENT_STORE >> 16; + set_pt_regs_flag(regs, PIF_PER_TRAP); +} + +/* * pc relative instructions are emulated, since parameters may not be * accessible from the xol area due to range limitations. */ @@ -249,13 +300,13 @@ static void handle_insn_ril(struct arch_uprobe *auprobe, struct pt_regs *regs) rc = emu_load_ril((u32 __user *)uptr, &rx->u64); break; case 0x07: /* sthrl */ - rc = emu_store_ril((u16 __user *)uptr, &rx->u16[3]); + rc = emu_store_ril(regs, (u16 __user *)uptr, &rx->u16[3]); break; case 0x0b: /* stgrl */ - rc = emu_store_ril((u64 __user *)uptr, &rx->u64); + rc = emu_store_ril(regs, (u64 __user *)uptr, &rx->u64); break; case 0x0f: /* strl */ - rc = emu_store_ril((u32 __user *)uptr, &rx->u32[1]); + rc = emu_store_ril(regs, (u32 __user *)uptr, &rx->u32[1]); break; } break; diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c index 7f0089d..e34122e5 100644 --- a/arch/s390/kernel/vtime.c +++ b/arch/s390/kernel/vtime.c @@ -128,8 +128,6 @@ void vtime_account_irq_enter(struct task_struct *tsk) struct thread_info *ti = task_thread_info(tsk); u64 timer, system; - WARN_ON_ONCE(!irqs_disabled()); - timer = S390_lowcore.last_update_timer; S390_lowcore.last_update_timer = get_vtimer(); S390_lowcore.system_timer += timer - S390_lowcore.last_update_timer; diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index be99357..3cf8cc0 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -322,11 +322,12 @@ static int gmap_alloc_table(struct gmap *gmap, unsigned long *table, static unsigned long __gmap_segment_gaddr(unsigned long *entry) { struct page *page; - unsigned long offset; + unsigned long offset, mask; offset = (unsigned long) entry / sizeof(unsigned long); offset = (offset & (PTRS_PER_PMD - 1)) * PMD_SIZE; - page = pmd_to_page((pmd_t *) entry); + mask = ~(PTRS_PER_PMD * sizeof(pmd_t) - 1); + page = virt_to_page((void *)((unsigned long) entry & mask)); return page->index + offset; } diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c index c52ac77..524496d 100644 --- a/arch/s390/net/bpf_jit_comp.c +++ b/arch/s390/net/bpf_jit_comp.c @@ -431,8 +431,8 @@ static int bpf_jit_insn(struct bpf_jit *jit, struct sock_filter *filter, EMIT4_DISP(0x88500000, K); break; case BPF_ALU | BPF_NEG: /* A = -A */ - /* lnr %r5,%r5 */ - EMIT2(0x1155); + /* lcr %r5,%r5 */ + EMIT2(0x1355); break; case BPF_JMP | BPF_JA: /* ip += K */ offset = addrs[i + K] + jit->start - jit->prg; @@ -502,8 +502,8 @@ branch: if (filter->jt == filter->jf) { xbranch: /* Emit compare if the branch targets are different */ if (filter->jt != filter->jf) { jit->seen |= SEEN_XREG; - /* cr %r5,%r12 */ - EMIT2(0x195c); + /* clr %r5,%r12 */ + EMIT2(0x155c); } goto branch; case BPF_JMP | BPF_JSET | BPF_X: /* ip += (A & X) ? jt : jf */ diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile index 5b016e2..3db07f3 100644 --- a/arch/x86/boot/Makefile +++ b/arch/x86/boot/Makefile @@ -51,6 +51,7 @@ targets += cpustr.h $(obj)/cpustr.h: $(obj)/mkcpustr FORCE $(call if_changed,cpustr) endif +clean-files += cpustr.h # --------------------------------------------------------------------------- diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile index fd0f848..5a4a089 100644 --- a/arch/x86/crypto/Makefile +++ b/arch/x86/crypto/Makefile @@ -26,7 +26,6 @@ obj-$(CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL) += ghash-clmulni-intel.o obj-$(CONFIG_CRYPTO_CRC32C_INTEL) += crc32c-intel.o obj-$(CONFIG_CRYPTO_SHA1_SSSE3) += sha1-ssse3.o -obj-$(CONFIG_CRYPTO_SHA1_MB) += sha-mb/ obj-$(CONFIG_CRYPTO_CRC32_PCLMUL) += crc32-pclmul.o obj-$(CONFIG_CRYPTO_SHA256_SSSE3) += sha256-ssse3.o obj-$(CONFIG_CRYPTO_SHA512_SSSE3) += sha512-ssse3.o @@ -46,6 +45,7 @@ endif ifeq ($(avx2_supported),yes) obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64) += camellia-aesni-avx2.o obj-$(CONFIG_CRYPTO_SERPENT_AVX2_X86_64) += serpent-avx2.o + obj-$(CONFIG_CRYPTO_SHA1_MB) += sha-mb/ endif aes-i586-y := aes-i586-asm_32.o aes_glue.o diff --git a/arch/x86/crypto/aes_ctrby8_avx-x86_64.S b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S index 2df2a02..a916c4a 100644 --- a/arch/x86/crypto/aes_ctrby8_avx-x86_64.S +++ b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S @@ -208,7 +208,7 @@ ddq_add_8: .if (klen == KEY_128) .if (load_keys) - vmovdqa 3*16(p_keys), xkeyA + vmovdqa 3*16(p_keys), xkey4 .endif .else vmovdqa 3*16(p_keys), xkeyA @@ -224,7 +224,7 @@ ddq_add_8: add $(16*by), p_in .if (klen == KEY_128) - vmovdqa 4*16(p_keys), xkey4 + vmovdqa 4*16(p_keys), xkeyB .else .if (load_keys) vmovdqa 4*16(p_keys), xkey4 @@ -234,7 +234,12 @@ ddq_add_8: .set i, 0 .rept by club XDATA, i - vaesenc xkeyA, var_xdata, var_xdata /* key 3 */ + /* key 3 */ + .if (klen == KEY_128) + vaesenc xkey4, var_xdata, var_xdata + .else + vaesenc xkeyA, var_xdata, var_xdata + .endif .set i, (i +1) .endr @@ -243,13 +248,18 @@ ddq_add_8: .set i, 0 .rept by club XDATA, i - vaesenc xkey4, var_xdata, var_xdata /* key 4 */ + /* key 4 */ + .if (klen == KEY_128) + vaesenc xkeyB, var_xdata, var_xdata + .else + vaesenc xkey4, var_xdata, var_xdata + .endif .set i, (i +1) .endr .if (klen == KEY_128) .if (load_keys) - vmovdqa 6*16(p_keys), xkeyB + vmovdqa 6*16(p_keys), xkey8 .endif .else vmovdqa 6*16(p_keys), xkeyB @@ -267,12 +277,17 @@ ddq_add_8: .set i, 0 .rept by club XDATA, i - vaesenc xkeyB, var_xdata, var_xdata /* key 6 */ + /* key 6 */ + .if (klen == KEY_128) + vaesenc xkey8, var_xdata, var_xdata + .else + vaesenc xkeyB, var_xdata, var_xdata + .endif .set i, (i +1) .endr .if (klen == KEY_128) - vmovdqa 8*16(p_keys), xkey8 + vmovdqa 8*16(p_keys), xkeyB .else .if (load_keys) vmovdqa 8*16(p_keys), xkey8 @@ -288,7 +303,7 @@ ddq_add_8: .if (klen == KEY_128) .if (load_keys) - vmovdqa 9*16(p_keys), xkeyA + vmovdqa 9*16(p_keys), xkey12 .endif .else vmovdqa 9*16(p_keys), xkeyA @@ -297,7 +312,12 @@ ddq_add_8: .set i, 0 .rept by club XDATA, i - vaesenc xkey8, var_xdata, var_xdata /* key 8 */ + /* key 8 */ + .if (klen == KEY_128) + vaesenc xkeyB, var_xdata, var_xdata + .else + vaesenc xkey8, var_xdata, var_xdata + .endif .set i, (i +1) .endr @@ -306,7 +326,12 @@ ddq_add_8: .set i, 0 .rept by club XDATA, i - vaesenc xkeyA, var_xdata, var_xdata /* key 9 */ + /* key 9 */ + .if (klen == KEY_128) + vaesenc xkey12, var_xdata, var_xdata + .else + vaesenc xkeyA, var_xdata, var_xdata + .endif .set i, (i +1) .endr @@ -412,7 +437,6 @@ ddq_add_8: /* main body of aes ctr load */ .macro do_aes_ctrmain key_len - cmp $16, num_bytes jb .Ldo_return2\key_len diff --git a/arch/x86/include/asm/vgtod.h b/arch/x86/include/asm/vgtod.h index e7e9682..f556c48 100644 --- a/arch/x86/include/asm/vgtod.h +++ b/arch/x86/include/asm/vgtod.h @@ -80,9 +80,11 @@ static inline unsigned int __getcpu(void) /* * Load per CPU data from GDT. LSL is faster than RDTSCP and - * works on all CPUs. + * works on all CPUs. This is volatile so that it orders + * correctly wrt barrier() and to keep gcc from cleverly + * hoisting it out of the calling function. */ - asm("lsl %1,%0" : "=r" (p) : "r" (__PER_CPU_SEG)); + asm volatile ("lsl %1,%0" : "=r" (p) : "r" (__PER_CPU_SEG)); return p; } diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 4433a4b..d162636 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -750,13 +750,13 @@ static int _acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu) } /* wrapper to silence section mismatch warning */ -int __ref acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu) +int __ref acpi_map_cpu(acpi_handle handle, int physid, int *pcpu) { return _acpi_map_lsapic(handle, physid, pcpu); } -EXPORT_SYMBOL(acpi_map_lsapic); +EXPORT_SYMBOL(acpi_map_cpu); -int acpi_unmap_lsapic(int cpu) +int acpi_unmap_cpu(int cpu) { #ifdef CONFIG_ACPI_NUMA set_apicid_to_node(per_cpu(x86_cpu_to_apicid, cpu), NUMA_NO_NODE); @@ -768,8 +768,7 @@ int acpi_unmap_lsapic(int cpu) return (0); } - -EXPORT_SYMBOL(acpi_unmap_lsapic); +EXPORT_SYMBOL(acpi_unmap_cpu); #endif /* CONFIG_ACPI_HOTPLUG_CPU */ int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base) diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile index e27b49d..80091ae 100644 --- a/arch/x86/kernel/cpu/Makefile +++ b/arch/x86/kernel/cpu/Makefile @@ -66,3 +66,4 @@ targets += capflags.c $(obj)/capflags.c: $(cpufeature) $(src)/mkcapflags.sh FORCE $(call if_changed,mkcapflags) endif +clean-files += capflags.c diff --git a/arch/x86/kernel/cpu/mkcapflags.sh b/arch/x86/kernel/cpu/mkcapflags.sh index e2b22df..36d99a3 100644 --- a/arch/x86/kernel/cpu/mkcapflags.sh +++ b/arch/x86/kernel/cpu/mkcapflags.sh @@ -28,7 +28,7 @@ function dump_array() # If the /* comment */ starts with a quote string, grab that. VALUE="$(echo "$i" | sed -n 's@.*/\* *\("[^"]*"\).*\*/@\1@p')" [ -z "$VALUE" ] && VALUE="\"$NAME\"" - [ "$VALUE" == '""' ] && continue + [ "$VALUE" = '""' ] && continue # Name is uppercase, VALUE is all lowercase VALUE="$(echo "$VALUE" | tr A-Z a-z)" diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h index 18eb78b..863d9b0 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h @@ -17,7 +17,7 @@ #define UNCORE_PCI_DEV_TYPE(data) ((data >> 8) & 0xff) #define UNCORE_PCI_DEV_IDX(data) (data & 0xff) #define UNCORE_EXTRA_PCI_DEV 0xff -#define UNCORE_EXTRA_PCI_DEV_MAX 2 +#define UNCORE_EXTRA_PCI_DEV_MAX 3 /* support up to 8 sockets */ #define UNCORE_SOCKET_MAX 8 diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c b/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c index 745b158..21af6149e 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c @@ -891,6 +891,7 @@ void snbep_uncore_cpu_init(void) enum { SNBEP_PCI_QPI_PORT0_FILTER, SNBEP_PCI_QPI_PORT1_FILTER, + HSWEP_PCI_PCU_3, }; static int snbep_qpi_hw_config(struct intel_uncore_box *box, struct perf_event *event) @@ -2026,6 +2027,17 @@ void hswep_uncore_cpu_init(void) { if (hswep_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores) hswep_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores; + + /* Detect 6-8 core systems with only two SBOXes */ + if (uncore_extra_pci_dev[0][HSWEP_PCI_PCU_3]) { + u32 capid4; + + pci_read_config_dword(uncore_extra_pci_dev[0][HSWEP_PCI_PCU_3], + 0x94, &capid4); + if (((capid4 >> 6) & 0x3) == 0) + hswep_uncore_sbox.num_boxes = 2; + } + uncore_msr_uncores = hswep_msr_uncores; } @@ -2287,6 +2299,11 @@ static DEFINE_PCI_DEVICE_TABLE(hswep_uncore_pci_ids) = { .driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV, SNBEP_PCI_QPI_PORT1_FILTER), }, + { /* PCU.3 (for Capability registers) */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2fc0), + .driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV, + HSWEP_PCI_PCU_3), + }, { /* end: all zeroes */ } }; diff --git a/arch/x86/kernel/perf_regs.c b/arch/x86/kernel/perf_regs.c index e309cc5..781861c 100644 --- a/arch/x86/kernel/perf_regs.c +++ b/arch/x86/kernel/perf_regs.c @@ -78,6 +78,14 @@ u64 perf_reg_abi(struct task_struct *task) { return PERF_SAMPLE_REGS_ABI_32; } + +void perf_get_regs_user(struct perf_regs *regs_user, + struct pt_regs *regs, + struct pt_regs *regs_user_copy) +{ + regs_user->regs = task_pt_regs(current); + regs_user->abi = perf_reg_abi(current); +} #else /* CONFIG_X86_64 */ #define REG_NOSUPPORT ((1ULL << PERF_REG_X86_DS) | \ (1ULL << PERF_REG_X86_ES) | \ @@ -102,4 +110,86 @@ u64 perf_reg_abi(struct task_struct *task) else return PERF_SAMPLE_REGS_ABI_64; } + +void perf_get_regs_user(struct perf_regs *regs_user, + struct pt_regs *regs, + struct pt_regs *regs_user_copy) +{ + struct pt_regs *user_regs = task_pt_regs(current); + + /* + * If we're in an NMI that interrupted task_pt_regs setup, then + * we can't sample user regs at all. This check isn't really + * sufficient, though, as we could be in an NMI inside an interrupt + * that happened during task_pt_regs setup. + */ + if (regs->sp > (unsigned long)&user_regs->r11 && + regs->sp <= (unsigned long)(user_regs + 1)) { + regs_user->abi = PERF_SAMPLE_REGS_ABI_NONE; + regs_user->regs = NULL; + return; + } + + /* + * RIP, flags, and the argument registers are usually saved. + * orig_ax is probably okay, too. + */ + regs_user_copy->ip = user_regs->ip; + regs_user_copy->cx = user_regs->cx; + regs_user_copy->dx = user_regs->dx; + regs_user_copy->si = user_regs->si; + regs_user_copy->di = user_regs->di; + regs_user_copy->r8 = user_regs->r8; + regs_user_copy->r9 = user_regs->r9; + regs_user_copy->r10 = user_regs->r10; + regs_user_copy->r11 = user_regs->r11; + regs_user_copy->orig_ax = user_regs->orig_ax; + regs_user_copy->flags = user_regs->flags; + + /* + * Don't even try to report the "rest" regs. + */ + regs_user_copy->bx = -1; + regs_user_copy->bp = -1; + regs_user_copy->r12 = -1; + regs_user_copy->r13 = -1; + regs_user_copy->r14 = -1; + regs_user_copy->r15 = -1; + + /* + * For this to be at all useful, we need a reasonable guess for + * sp and the ABI. Be careful: we're in NMI context, and we're + * considering current to be the current task, so we should + * be careful not to look at any other percpu variables that might + * change during context switches. + */ + if (IS_ENABLED(CONFIG_IA32_EMULATION) && + task_thread_info(current)->status & TS_COMPAT) { + /* Easy case: we're in a compat syscall. */ + regs_user->abi = PERF_SAMPLE_REGS_ABI_32; + regs_user_copy->sp = user_regs->sp; + regs_user_copy->cs = user_regs->cs; + regs_user_copy->ss = user_regs->ss; + } else if (user_regs->orig_ax != -1) { + /* + * We're probably in a 64-bit syscall. + * Warning: this code is severely racy. At least it's better + * than just blindly copying user_regs. + */ + regs_user->abi = PERF_SAMPLE_REGS_ABI_64; + regs_user_copy->sp = this_cpu_read(old_rsp); + regs_user_copy->cs = __USER_CS; + regs_user_copy->ss = __USER_DS; + regs_user_copy->cx = -1; /* usually contains garbage */ + } else { + /* We're probably in an interrupt or exception. */ + regs_user->abi = user_64bit_mode(user_regs) ? + PERF_SAMPLE_REGS_ABI_64 : PERF_SAMPLE_REGS_ABI_32; + regs_user_copy->sp = user_regs->sp; + regs_user_copy->cs = user_regs->cs; + regs_user_copy->ss = user_regs->ss; + } + + regs_user->regs = regs_user_copy; +} #endif /* CONFIG_X86_32 */ diff --git a/arch/x86/lib/insn.c b/arch/x86/lib/insn.c index 2480978b..1313ae6 100644 --- a/arch/x86/lib/insn.c +++ b/arch/x86/lib/insn.c @@ -28,7 +28,7 @@ /* Verify next sizeof(t) bytes can be on the same instruction */ #define validate_next(t, insn, n) \ - ((insn)->next_byte + sizeof(t) + n < (insn)->end_kaddr) + ((insn)->next_byte + sizeof(t) + n <= (insn)->end_kaddr) #define __get_next(t, insn) \ ({ t r = *(t*)insn->next_byte; insn->next_byte += sizeof(t); r; }) diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index a97ee08..08a7d31 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -438,20 +438,20 @@ static unsigned long __init init_range_memory_mapping( static unsigned long __init get_new_step_size(unsigned long step_size) { /* - * Explain why we shift by 5 and why we don't have to worry about - * 'step_size << 5' overflowing: - * - * initial mapped size is PMD_SIZE (2M). + * Initial mapped size is PMD_SIZE (2M). * We can not set step_size to be PUD_SIZE (1G) yet. * In worse case, when we cross the 1G boundary, and * PG_LEVEL_2M is not set, we will need 1+1+512 pages (2M + 8k) - * to map 1G range with PTE. Use 5 as shift for now. + * to map 1G range with PTE. Hence we use one less than the + * difference of page table level shifts. * - * Don't need to worry about overflow, on 32bit, when step_size - * is 0, round_down() returns 0 for start, and that turns it - * into 0x100000000ULL. + * Don't need to worry about overflow in the top-down case, on 32bit, + * when step_size is 0, round_down() returns 0 for start, and that + * turns it into 0x100000000ULL. + * In the bottom-up case, round_up(x, 0) returns 0 though too, which + * needs to be taken into consideration by the code below. */ - return step_size << 5; + return step_size << (PMD_SHIFT - PAGE_SHIFT - 1); } /** @@ -471,7 +471,6 @@ static void __init memory_map_top_down(unsigned long map_start, unsigned long step_size; unsigned long addr; unsigned long mapped_ram_size = 0; - unsigned long new_mapped_ram_size; /* xen has big range in reserved near end of ram, skip it at first.*/ addr = memblock_find_in_range(map_start, map_end, PMD_SIZE, PMD_SIZE); @@ -496,14 +495,12 @@ static void __init memory_map_top_down(unsigned long map_start, start = map_start; } else start = map_start; - new_mapped_ram_size = init_range_memory_mapping(start, + mapped_ram_size += init_range_memory_mapping(start, last_start); last_start = start; min_pfn_mapped = last_start >> PAGE_SHIFT; - /* only increase step_size after big range get mapped */ - if (new_mapped_ram_size > mapped_ram_size) + if (mapped_ram_size >= step_size) step_size = get_new_step_size(step_size); - mapped_ram_size += new_mapped_ram_size; } if (real_end < map_end) @@ -524,7 +521,7 @@ static void __init memory_map_top_down(unsigned long map_start, static void __init memory_map_bottom_up(unsigned long map_start, unsigned long map_end) { - unsigned long next, new_mapped_ram_size, start; + unsigned long next, start; unsigned long mapped_ram_size = 0; /* step_size need to be small so pgt_buf from BRK could cover it */ unsigned long step_size = PMD_SIZE; @@ -539,19 +536,19 @@ static void __init memory_map_bottom_up(unsigned long map_start, * for page table. */ while (start < map_end) { - if (map_end - start > step_size) { + if (step_size && map_end - start > step_size) { next = round_up(start + 1, step_size); if (next > map_end) next = map_end; - } else + } else { next = map_end; + } - new_mapped_ram_size = init_range_memory_mapping(start, next); + mapped_ram_size += init_range_memory_mapping(start, next); start = next; - if (new_mapped_ram_size > mapped_ram_size) + if (mapped_ram_size >= step_size) step_size = get_new_step_size(step_size); - mapped_ram_size += new_mapped_ram_size; } } diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c index 009495b..1c9f750 100644 --- a/arch/x86/vdso/vma.c +++ b/arch/x86/vdso/vma.c @@ -41,12 +41,17 @@ void __init init_vdso_image(const struct vdso_image *image) struct linux_binprm; -/* Put the vdso above the (randomized) stack with another randomized offset. - This way there is no hole in the middle of address space. - To save memory make sure it is still in the same PTE as the stack top. - This doesn't give that many random bits. - - Only used for the 64-bit and x32 vdsos. */ +/* + * Put the vdso above the (randomized) stack with another randomized + * offset. This way there is no hole in the middle of address space. + * To save memory make sure it is still in the same PTE as the stack + * top. This doesn't give that many random bits. + * + * Note that this algorithm is imperfect: the distribution of the vdso + * start address within a PMD is biased toward the end. + * + * Only used for the 64-bit and x32 vdsos. + */ static unsigned long vdso_addr(unsigned long start, unsigned len) { #ifdef CONFIG_X86_32 @@ -54,22 +59,30 @@ static unsigned long vdso_addr(unsigned long start, unsigned len) #else unsigned long addr, end; unsigned offset; - end = (start + PMD_SIZE - 1) & PMD_MASK; + + /* + * Round up the start address. It can start out unaligned as a result + * of stack start randomization. + */ + start = PAGE_ALIGN(start); + + /* Round the lowest possible end address up to a PMD boundary. */ + end = (start + len + PMD_SIZE - 1) & PMD_MASK; if (end >= TASK_SIZE_MAX) end = TASK_SIZE_MAX; end -= len; - /* This loses some more bits than a modulo, but is cheaper */ - offset = get_random_int() & (PTRS_PER_PTE - 1); - addr = start + (offset << PAGE_SHIFT); - if (addr >= end) - addr = end; + + if (end > start) { + offset = get_random_int() % (((end - start) >> PAGE_SHIFT) + 1); + addr = start + (offset << PAGE_SHIFT); + } else { + addr = start; + } /* - * page-align it here so that get_unmapped_area doesn't - * align it wrongfully again to the next page. addr can come in 4K - * unaligned here as a result of stack start randomization. + * Forcibly align the final address in case we have a hardware + * issue that requires alignment for performance reasons. */ - addr = PAGE_ALIGN(addr); addr = align_vdso_addr(addr); return addr; diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 6bf3a13..78a881b 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -40,6 +40,7 @@ #include <xen/interface/physdev.h> #include <xen/interface/vcpu.h> #include <xen/interface/memory.h> +#include <xen/interface/nmi.h> #include <xen/interface/xen-mca.h> #include <xen/features.h> #include <xen/page.h> @@ -66,6 +67,7 @@ #include <asm/reboot.h> #include <asm/stackprotector.h> #include <asm/hypervisor.h> +#include <asm/mach_traps.h> #include <asm/mwait.h> #include <asm/pci_x86.h> #include <asm/pat.h> @@ -1351,6 +1353,21 @@ static const struct machine_ops xen_machine_ops __initconst = { .emergency_restart = xen_emergency_restart, }; +static unsigned char xen_get_nmi_reason(void) +{ + unsigned char reason = 0; + + /* Construct a value which looks like it came from port 0x61. */ + if (test_bit(_XEN_NMIREASON_io_error, + &HYPERVISOR_shared_info->arch.nmi_reason)) + reason |= NMI_REASON_IOCHK; + if (test_bit(_XEN_NMIREASON_pci_serr, + &HYPERVISOR_shared_info->arch.nmi_reason)) + reason |= NMI_REASON_SERR; + + return reason; +} + static void __init xen_boot_params_init_edd(void) { #if IS_ENABLED(CONFIG_EDD) @@ -1535,9 +1552,12 @@ asmlinkage __visible void __init xen_start_kernel(void) pv_info = xen_info; pv_init_ops = xen_init_ops; pv_apic_ops = xen_apic_ops; - if (!xen_pvh_domain()) + if (!xen_pvh_domain()) { pv_cpu_ops = xen_cpu_ops; + x86_platform.get_nmi_reason = xen_get_nmi_reason; + } + if (xen_feature(XENFEAT_auto_translated_physmap)) x86_init.resources.memory_setup = xen_auto_xlated_memory_setup; else diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c index edbc7a6..70fb507 100644 --- a/arch/x86/xen/p2m.c +++ b/arch/x86/xen/p2m.c @@ -167,10 +167,13 @@ static void * __ref alloc_p2m_page(void) return (void *)__get_free_page(GFP_KERNEL | __GFP_REPEAT); } -/* Only to be called in case of a race for a page just allocated! */ -static void free_p2m_page(void *p) +static void __ref free_p2m_page(void *p) { - BUG_ON(!slab_is_available()); + if (unlikely(!slab_is_available())) { + free_bootmem((unsigned long)p, PAGE_SIZE); + return; + } + free_page((unsigned long)p); } @@ -375,7 +378,7 @@ static void __init xen_rebuild_p2m_list(unsigned long *p2m) p2m_missing_pte : p2m_identity_pte; for (i = 0; i < PMDS_PER_MID_PAGE; i++) { pmdp = populate_extra_pmd( - (unsigned long)(p2m + pfn + i * PTRS_PER_PTE)); + (unsigned long)(p2m + pfn) + i * PMD_SIZE); set_pmd(pmdp, __pmd(__pa(ptep) | _KERNPG_TABLE)); } } @@ -436,10 +439,9 @@ EXPORT_SYMBOL_GPL(get_phys_to_machine); * a new pmd is to replace p2m_missing_pte or p2m_identity_pte by a individual * pmd. In case of PAE/x86-32 there are multiple pmds to allocate! */ -static pte_t *alloc_p2m_pmd(unsigned long addr, pte_t *ptep, pte_t *pte_pg) +static pte_t *alloc_p2m_pmd(unsigned long addr, pte_t *pte_pg) { pte_t *ptechk; - pte_t *pteret = ptep; pte_t *pte_newpg[PMDS_PER_MID_PAGE]; pmd_t *pmdp; unsigned int level; @@ -473,8 +475,6 @@ static pte_t *alloc_p2m_pmd(unsigned long addr, pte_t *ptep, pte_t *pte_pg) if (ptechk == pte_pg) { set_pmd(pmdp, __pmd(__pa(pte_newpg[i]) | _KERNPG_TABLE)); - if (vaddr == (addr & ~(PMD_SIZE - 1))) - pteret = pte_offset_kernel(pmdp, addr); pte_newpg[i] = NULL; } @@ -488,7 +488,7 @@ static pte_t *alloc_p2m_pmd(unsigned long addr, pte_t *ptep, pte_t *pte_pg) vaddr += PMD_SIZE; } - return pteret; + return lookup_address(addr, &level); } /* @@ -517,7 +517,7 @@ static bool alloc_p2m(unsigned long pfn) if (pte_pg == p2m_missing_pte || pte_pg == p2m_identity_pte) { /* PMD level is missing, allocate a new one */ - ptep = alloc_p2m_pmd(addr, ptep, pte_pg); + ptep = alloc_p2m_pmd(addr, pte_pg); if (!ptep) return false; } diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index dfd77de..865e56c 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -140,7 +140,7 @@ static void __init xen_del_extra_mem(u64 start, u64 size) unsigned long __ref xen_chk_extra_mem(unsigned long pfn) { int i; - unsigned long addr = PFN_PHYS(pfn); + phys_addr_t addr = PFN_PHYS(pfn); for (i = 0; i < XEN_EXTRA_MEM_MAX_REGIONS; i++) { if (addr >= xen_extra_mem[i].start && @@ -160,6 +160,8 @@ void __init xen_inv_extra_mem(void) int i; for (i = 0; i < XEN_EXTRA_MEM_MAX_REGIONS; i++) { + if (!xen_extra_mem[i].size) + continue; pfn_s = PFN_DOWN(xen_extra_mem[i].start); pfn_e = PFN_UP(xen_extra_mem[i].start + xen_extra_mem[i].size); for (pfn = pfn_s; pfn < pfn_e; pfn++) @@ -229,15 +231,14 @@ static int __init xen_free_mfn(unsigned long mfn) * as a fallback if the remapping fails. */ static void __init xen_set_identity_and_release_chunk(unsigned long start_pfn, - unsigned long end_pfn, unsigned long nr_pages, unsigned long *identity, - unsigned long *released) + unsigned long end_pfn, unsigned long nr_pages, unsigned long *released) { - unsigned long len = 0; unsigned long pfn, end; int ret; WARN_ON(start_pfn > end_pfn); + /* Release pages first. */ end = min(end_pfn, nr_pages); for (pfn = start_pfn; pfn < end; pfn++) { unsigned long mfn = pfn_to_mfn(pfn); @@ -250,16 +251,14 @@ static void __init xen_set_identity_and_release_chunk(unsigned long start_pfn, WARN(ret != 1, "Failed to release pfn %lx err=%d\n", pfn, ret); if (ret == 1) { + (*released)++; if (!__set_phys_to_machine(pfn, INVALID_P2M_ENTRY)) break; - len++; } else break; } - /* Need to release pages first */ - *released += len; - *identity += set_phys_range_identity(start_pfn, end_pfn); + set_phys_range_identity(start_pfn, end_pfn); } /* @@ -287,7 +286,7 @@ static void __init xen_update_mem_tables(unsigned long pfn, unsigned long mfn) } /* Update kernel mapping, but not for highmem. */ - if ((pfn << PAGE_SHIFT) >= __pa(high_memory)) + if (pfn >= PFN_UP(__pa(high_memory - 1))) return; if (HYPERVISOR_update_va_mapping((unsigned long)__va(pfn << PAGE_SHIFT), @@ -318,7 +317,6 @@ static void __init xen_do_set_identity_and_remap_chunk( unsigned long ident_pfn_iter, remap_pfn_iter; unsigned long ident_end_pfn = start_pfn + size; unsigned long left = size; - unsigned long ident_cnt = 0; unsigned int i, chunk; WARN_ON(size == 0); @@ -347,8 +345,7 @@ static void __init xen_do_set_identity_and_remap_chunk( xen_remap_mfn = mfn; /* Set identity map */ - ident_cnt += set_phys_range_identity(ident_pfn_iter, - ident_pfn_iter + chunk); + set_phys_range_identity(ident_pfn_iter, ident_pfn_iter + chunk); left -= chunk; } @@ -371,7 +368,7 @@ static void __init xen_do_set_identity_and_remap_chunk( static unsigned long __init xen_set_identity_and_remap_chunk( const struct e820entry *list, size_t map_size, unsigned long start_pfn, unsigned long end_pfn, unsigned long nr_pages, unsigned long remap_pfn, - unsigned long *identity, unsigned long *released) + unsigned long *released, unsigned long *remapped) { unsigned long pfn; unsigned long i = 0; @@ -386,8 +383,7 @@ static unsigned long __init xen_set_identity_and_remap_chunk( /* Do not remap pages beyond the current allocation */ if (cur_pfn >= nr_pages) { /* Identity map remaining pages */ - *identity += set_phys_range_identity(cur_pfn, - cur_pfn + size); + set_phys_range_identity(cur_pfn, cur_pfn + size); break; } if (cur_pfn + size > nr_pages) @@ -398,7 +394,7 @@ static unsigned long __init xen_set_identity_and_remap_chunk( if (!remap_range_size) { pr_warning("Unable to find available pfn range, not remapping identity pages\n"); xen_set_identity_and_release_chunk(cur_pfn, - cur_pfn + left, nr_pages, identity, released); + cur_pfn + left, nr_pages, released); break; } /* Adjust size to fit in current e820 RAM region */ @@ -410,7 +406,7 @@ static unsigned long __init xen_set_identity_and_remap_chunk( /* Update variables to reflect new mappings. */ i += size; remap_pfn += size; - *identity += size; + *remapped += size; } /* @@ -427,13 +423,13 @@ static unsigned long __init xen_set_identity_and_remap_chunk( static void __init xen_set_identity_and_remap( const struct e820entry *list, size_t map_size, unsigned long nr_pages, - unsigned long *released) + unsigned long *released, unsigned long *remapped) { phys_addr_t start = 0; - unsigned long identity = 0; unsigned long last_pfn = nr_pages; const struct e820entry *entry; unsigned long num_released = 0; + unsigned long num_remapped = 0; int i; /* @@ -460,14 +456,14 @@ static void __init xen_set_identity_and_remap( last_pfn = xen_set_identity_and_remap_chunk( list, map_size, start_pfn, end_pfn, nr_pages, last_pfn, - &identity, &num_released); + &num_released, &num_remapped); start = end; } } *released = num_released; + *remapped = num_remapped; - pr_info("Set %ld page(s) to 1-1 mapping\n", identity); pr_info("Released %ld page(s)\n", num_released); } @@ -586,6 +582,7 @@ char * __init xen_memory_setup(void) struct xen_memory_map memmap; unsigned long max_pages; unsigned long extra_pages = 0; + unsigned long remapped_pages; int i; int op; @@ -635,9 +632,10 @@ char * __init xen_memory_setup(void) * underlying RAM. */ xen_set_identity_and_remap(map, memmap.nr_entries, max_pfn, - &xen_released_pages); + &xen_released_pages, &remapped_pages); extra_pages += xen_released_pages; + extra_pages += remapped_pages; /* * Clamp the amount of extra memory to a EXTRA_MEM_RATIO diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c index f473d26..6908734 100644 --- a/arch/x86/xen/time.c +++ b/arch/x86/xen/time.c @@ -391,7 +391,7 @@ static const struct clock_event_device *xen_clockevent = struct xen_clock_event_device { struct clock_event_device evt; - char *name; + char name[16]; }; static DEFINE_PER_CPU(struct xen_clock_event_device, xen_clock_events) = { .evt.irq = -1 }; @@ -420,46 +420,38 @@ void xen_teardown_timer(int cpu) if (evt->irq >= 0) { unbind_from_irqhandler(evt->irq, NULL); evt->irq = -1; - kfree(per_cpu(xen_clock_events, cpu).name); - per_cpu(xen_clock_events, cpu).name = NULL; } } void xen_setup_timer(int cpu) { - char *name; - struct clock_event_device *evt; + struct xen_clock_event_device *xevt = &per_cpu(xen_clock_events, cpu); + struct clock_event_device *evt = &xevt->evt; int irq; - evt = &per_cpu(xen_clock_events, cpu).evt; WARN(evt->irq >= 0, "IRQ%d for CPU%d is already allocated\n", evt->irq, cpu); if (evt->irq >= 0) xen_teardown_timer(cpu); printk(KERN_INFO "installing Xen timer for CPU %d\n", cpu); - name = kasprintf(GFP_KERNEL, "timer%d", cpu); - if (!name) - name = "<timer kasprintf failed>"; + snprintf(xevt->name, sizeof(xevt->name), "timer%d", cpu); irq = bind_virq_to_irqhandler(VIRQ_TIMER, cpu, xen_timer_interrupt, IRQF_PERCPU|IRQF_NOBALANCING|IRQF_TIMER| IRQF_FORCE_RESUME|IRQF_EARLY_RESUME, - name, NULL); + xevt->name, NULL); (void)xen_set_irq_priority(irq, XEN_IRQ_PRIORITY_MAX); memcpy(evt, xen_clockevent, sizeof(*evt)); evt->cpumask = cpumask_of(cpu); evt->irq = irq; - per_cpu(xen_clock_events, cpu).name = name; } void xen_setup_cpu_clockevents(void) { - BUG_ON(preemptible()); - clockevents_register_device(this_cpu_ptr(&xen_clock_events.evt)); } diff --git a/block/blk-core.c b/block/blk-core.c index 30f6153..3ad4055 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -473,6 +473,25 @@ void blk_queue_bypass_end(struct request_queue *q) } EXPORT_SYMBOL_GPL(blk_queue_bypass_end); +void blk_set_queue_dying(struct request_queue *q) +{ + queue_flag_set_unlocked(QUEUE_FLAG_DYING, q); + + if (q->mq_ops) + blk_mq_wake_waiters(q); + else { + struct request_list *rl; + + blk_queue_for_each_rl(rl, q) { + if (rl->rq_pool) { + wake_up(&rl->wait[BLK_RW_SYNC]); + wake_up(&rl->wait[BLK_RW_ASYNC]); + } + } + } +} +EXPORT_SYMBOL_GPL(blk_set_queue_dying); + /** * blk_cleanup_queue - shutdown a request queue * @q: request queue to shutdown @@ -486,7 +505,7 @@ void blk_cleanup_queue(struct request_queue *q) /* mark @q DYING, no new request or merges will be allowed afterwards */ mutex_lock(&q->sysfs_lock); - queue_flag_set_unlocked(QUEUE_FLAG_DYING, q); + blk_set_queue_dying(q); spin_lock_irq(lock); /* diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c index 32e8dbb..60c9d4a 100644 --- a/block/blk-mq-tag.c +++ b/block/blk-mq-tag.c @@ -68,9 +68,9 @@ bool __blk_mq_tag_busy(struct blk_mq_hw_ctx *hctx) } /* - * Wakeup all potentially sleeping on normal (non-reserved) tags + * Wakeup all potentially sleeping on tags */ -static void blk_mq_tag_wakeup_all(struct blk_mq_tags *tags) +void blk_mq_tag_wakeup_all(struct blk_mq_tags *tags, bool include_reserve) { struct blk_mq_bitmap_tags *bt; int i, wake_index; @@ -85,6 +85,12 @@ static void blk_mq_tag_wakeup_all(struct blk_mq_tags *tags) wake_index = bt_index_inc(wake_index); } + + if (include_reserve) { + bt = &tags->breserved_tags; + if (waitqueue_active(&bt->bs[0].wait)) + wake_up(&bt->bs[0].wait); + } } /* @@ -100,7 +106,7 @@ void __blk_mq_tag_idle(struct blk_mq_hw_ctx *hctx) atomic_dec(&tags->active_queues); - blk_mq_tag_wakeup_all(tags); + blk_mq_tag_wakeup_all(tags, false); } /* @@ -584,7 +590,7 @@ int blk_mq_tag_update_depth(struct blk_mq_tags *tags, unsigned int tdepth) * static and should never need resizing. */ bt_update_count(&tags->bitmap_tags, tdepth); - blk_mq_tag_wakeup_all(tags); + blk_mq_tag_wakeup_all(tags, false); return 0; } diff --git a/block/blk-mq-tag.h b/block/blk-mq-tag.h index 6206ed1..a6fa0fc 100644 --- a/block/blk-mq-tag.h +++ b/block/blk-mq-tag.h @@ -54,6 +54,7 @@ extern bool blk_mq_has_free_tags(struct blk_mq_tags *tags); extern ssize_t blk_mq_tag_sysfs_show(struct blk_mq_tags *tags, char *page); extern void blk_mq_tag_init_last_tag(struct blk_mq_tags *tags, unsigned int *last_tag); extern int blk_mq_tag_update_depth(struct blk_mq_tags *tags, unsigned int depth); +extern void blk_mq_tag_wakeup_all(struct blk_mq_tags *tags, bool); enum { BLK_MQ_TAG_CACHE_MIN = 1, diff --git a/block/blk-mq.c b/block/blk-mq.c index da1ab56..2f95747 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -107,7 +107,7 @@ static void blk_mq_usage_counter_release(struct percpu_ref *ref) wake_up_all(&q->mq_freeze_wq); } -static void blk_mq_freeze_queue_start(struct request_queue *q) +void blk_mq_freeze_queue_start(struct request_queue *q) { bool freeze; @@ -120,6 +120,7 @@ static void blk_mq_freeze_queue_start(struct request_queue *q) blk_mq_run_queues(q, false); } } +EXPORT_SYMBOL_GPL(blk_mq_freeze_queue_start); static void blk_mq_freeze_queue_wait(struct request_queue *q) { @@ -136,7 +137,7 @@ void blk_mq_freeze_queue(struct request_queue *q) blk_mq_freeze_queue_wait(q); } -static void blk_mq_unfreeze_queue(struct request_queue *q) +void blk_mq_unfreeze_queue(struct request_queue *q) { bool wake; @@ -149,6 +150,24 @@ static void blk_mq_unfreeze_queue(struct request_queue *q) wake_up_all(&q->mq_freeze_wq); } } +EXPORT_SYMBOL_GPL(blk_mq_unfreeze_queue); + +void blk_mq_wake_waiters(struct request_queue *q) +{ + struct blk_mq_hw_ctx *hctx; + unsigned int i; + + queue_for_each_hw_ctx(q, hctx, i) + if (blk_mq_hw_queue_mapped(hctx)) + blk_mq_tag_wakeup_all(hctx->tags, true); + + /* + * If we are called because the queue has now been marked as + * dying, we need to ensure that processes currently waiting on + * the queue are notified as well. + */ + wake_up_all(&q->mq_freeze_wq); +} bool blk_mq_can_queue(struct blk_mq_hw_ctx *hctx) { @@ -258,8 +277,10 @@ struct request *blk_mq_alloc_request(struct request_queue *q, int rw, gfp_t gfp, ctx = alloc_data.ctx; } blk_mq_put_ctx(ctx); - if (!rq) + if (!rq) { + blk_mq_queue_exit(q); return ERR_PTR(-EWOULDBLOCK); + } return rq; } EXPORT_SYMBOL(blk_mq_alloc_request); @@ -383,6 +404,12 @@ void blk_mq_complete_request(struct request *rq) } EXPORT_SYMBOL(blk_mq_complete_request); +int blk_mq_request_started(struct request *rq) +{ + return test_bit(REQ_ATOM_STARTED, &rq->atomic_flags); +} +EXPORT_SYMBOL_GPL(blk_mq_request_started); + void blk_mq_start_request(struct request *rq) { struct request_queue *q = rq->q; @@ -500,12 +527,38 @@ void blk_mq_add_to_requeue_list(struct request *rq, bool at_head) } EXPORT_SYMBOL(blk_mq_add_to_requeue_list); +void blk_mq_cancel_requeue_work(struct request_queue *q) +{ + cancel_work_sync(&q->requeue_work); +} +EXPORT_SYMBOL_GPL(blk_mq_cancel_requeue_work); + void blk_mq_kick_requeue_list(struct request_queue *q) { kblockd_schedule_work(&q->requeue_work); } EXPORT_SYMBOL(blk_mq_kick_requeue_list); +void blk_mq_abort_requeue_list(struct request_queue *q) +{ + unsigned long flags; + LIST_HEAD(rq_list); + + spin_lock_irqsave(&q->requeue_lock, flags); + list_splice_init(&q->requeue_list, &rq_list); + spin_unlock_irqrestore(&q->requeue_lock, flags); + + while (!list_empty(&rq_list)) { + struct request *rq; + + rq = list_first_entry(&rq_list, struct request, queuelist); + list_del_init(&rq->queuelist); + rq->errors = -EIO; + blk_mq_end_request(rq, rq->errors); + } +} +EXPORT_SYMBOL(blk_mq_abort_requeue_list); + static inline bool is_flush_request(struct request *rq, struct blk_flush_queue *fq, unsigned int tag) { @@ -566,13 +619,24 @@ void blk_mq_rq_timed_out(struct request *req, bool reserved) break; } } - + static void blk_mq_check_expired(struct blk_mq_hw_ctx *hctx, struct request *rq, void *priv, bool reserved) { struct blk_mq_timeout_data *data = priv; - if (!test_bit(REQ_ATOM_STARTED, &rq->atomic_flags)) + if (!test_bit(REQ_ATOM_STARTED, &rq->atomic_flags)) { + /* + * If a request wasn't started before the queue was + * marked dying, kill it here or it'll go unnoticed. + */ + if (unlikely(blk_queue_dying(rq->q))) { + rq->errors = -EIO; + blk_mq_complete_request(rq); + } + return; + } + if (rq->cmd_flags & REQ_NO_TIMEOUT) return; if (time_after_eq(jiffies, rq->deadline)) { @@ -1601,7 +1665,6 @@ static int blk_mq_init_hctx(struct request_queue *q, hctx->queue = q; hctx->queue_num = hctx_idx; hctx->flags = set->flags; - hctx->cmd_size = set->cmd_size; blk_mq_init_cpu_notifier(&hctx->cpu_notifier, blk_mq_hctx_notify, hctx); diff --git a/block/blk-mq.h b/block/blk-mq.h index 206230e..4f4f943 100644 --- a/block/blk-mq.h +++ b/block/blk-mq.h @@ -32,6 +32,7 @@ void blk_mq_free_queue(struct request_queue *q); void blk_mq_clone_flush_request(struct request *flush_rq, struct request *orig_rq); int blk_mq_update_nr_requests(struct request_queue *q, unsigned int nr); +void blk_mq_wake_waiters(struct request_queue *q); /* * CPU hotplug helpers diff --git a/block/blk-timeout.c b/block/blk-timeout.c index 56c0258..246dfb1 100644 --- a/block/blk-timeout.c +++ b/block/blk-timeout.c @@ -190,6 +190,9 @@ void blk_add_timer(struct request *req) struct request_queue *q = req->q; unsigned long expiry; + if (req->cmd_flags & REQ_NO_TIMEOUT) + return; + /* blk-mq has its own handler, so we don't need ->rq_timed_out_fn */ if (!q->mq_ops && !q->rq_timed_out_fn) return; diff --git a/drivers/Makefile b/drivers/Makefile index 67d2334..527a6da 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -50,7 +50,10 @@ obj-$(CONFIG_RESET_CONTROLLER) += reset/ obj-y += tty/ obj-y += char/ -# gpu/ comes after char for AGP vs DRM startup +# iommu/ comes before gpu as gpu are using iommu controllers +obj-$(CONFIG_IOMMU_SUPPORT) += iommu/ + +# gpu/ comes after char for AGP vs DRM startup and after iommu obj-y += gpu/ obj-$(CONFIG_CONNECTOR) += connector/ @@ -141,7 +144,6 @@ obj-y += clk/ obj-$(CONFIG_MAILBOX) += mailbox/ obj-$(CONFIG_HWSPINLOCK) += hwspinlock/ -obj-$(CONFIG_IOMMU_SUPPORT) += iommu/ obj-$(CONFIG_REMOTEPROC) += remoteproc/ obj-$(CONFIG_RPMSG) += rpmsg/ diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index 1fdf5e0..1020b1b 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -170,7 +170,7 @@ static int acpi_processor_hotadd_init(struct acpi_processor *pr) acpi_status status; int ret; - if (pr->apic_id == -1) + if (pr->phys_id == -1) return -ENODEV; status = acpi_evaluate_integer(pr->handle, "_STA", NULL, &sta); @@ -180,13 +180,13 @@ static int acpi_processor_hotadd_init(struct acpi_processor *pr) cpu_maps_update_begin(); cpu_hotplug_begin(); - ret = acpi_map_lsapic(pr->handle, pr->apic_id, &pr->id); + ret = acpi_map_cpu(pr->handle, pr->phys_id, &pr->id); if (ret) goto out; ret = arch_register_cpu(pr->id); if (ret) { - acpi_unmap_lsapic(pr->id); + acpi_unmap_cpu(pr->id); goto out; } @@ -215,7 +215,7 @@ static int acpi_processor_get_info(struct acpi_device *device) union acpi_object object = { 0 }; struct acpi_buffer buffer = { sizeof(union acpi_object), &object }; struct acpi_processor *pr = acpi_driver_data(device); - int apic_id, cpu_index, device_declaration = 0; + int phys_id, cpu_index, device_declaration = 0; acpi_status status = AE_OK; static int cpu0_initialized; unsigned long long value; @@ -262,15 +262,18 @@ static int acpi_processor_get_info(struct acpi_device *device) pr->acpi_id = value; } - apic_id = acpi_get_apicid(pr->handle, device_declaration, pr->acpi_id); - if (apic_id < 0) - acpi_handle_debug(pr->handle, "failed to get CPU APIC ID.\n"); - pr->apic_id = apic_id; + phys_id = acpi_get_phys_id(pr->handle, device_declaration, pr->acpi_id); + if (phys_id < 0) + acpi_handle_debug(pr->handle, "failed to get CPU physical ID.\n"); + pr->phys_id = phys_id; - cpu_index = acpi_map_cpuid(pr->apic_id, pr->acpi_id); + cpu_index = acpi_map_cpuid(pr->phys_id, pr->acpi_id); if (!cpu0_initialized && !acpi_has_cpu_in_madt()) { cpu0_initialized = 1; - /* Handle UP system running SMP kernel, with no LAPIC in MADT */ + /* + * Handle UP system running SMP kernel, with no CPU + * entry in MADT + */ if ((cpu_index == -1) && (num_online_cpus() == 1)) cpu_index = 0; } @@ -458,7 +461,7 @@ static void acpi_processor_remove(struct acpi_device *device) /* Remove the CPU. */ arch_unregister_cpu(pr->id); - acpi_unmap_lsapic(pr->id); + acpi_unmap_cpu(pr->id); cpu_hotplug_done(); cpu_maps_update_done(); diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index c2daa85..c0d44d3 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -257,7 +257,7 @@ int acpi_bus_init_power(struct acpi_device *device) device->power.state = ACPI_STATE_UNKNOWN; if (!acpi_device_is_present(device)) - return 0; + return -ENXIO; result = acpi_device_get_power(device, &state); if (result) diff --git a/drivers/acpi/int340x_thermal.c b/drivers/acpi/int340x_thermal.c index a27d31d..9dcf836 100644 --- a/drivers/acpi/int340x_thermal.c +++ b/drivers/acpi/int340x_thermal.c @@ -14,10 +14,10 @@ #include "internal.h" -#define DO_ENUMERATION 0x01 +#define INT3401_DEVICE 0X01 static const struct acpi_device_id int340x_thermal_device_ids[] = { - {"INT3400", DO_ENUMERATION }, - {"INT3401"}, + {"INT3400"}, + {"INT3401", INT3401_DEVICE}, {"INT3402"}, {"INT3403"}, {"INT3404"}, @@ -34,7 +34,10 @@ static int int340x_thermal_handler_attach(struct acpi_device *adev, const struct acpi_device_id *id) { #if defined(CONFIG_INT340X_THERMAL) || defined(CONFIG_INT340X_THERMAL_MODULE) - if (id->driver_data == DO_ENUMERATION) + acpi_create_platform_device(adev); +#elif defined(INTEL_SOC_DTS_THERMAL) || defined(INTEL_SOC_DTS_THERMAL_MODULE) + /* Intel SoC DTS thermal driver needs INT3401 to set IRQ descriptor */ + if (id->driver_data == INT3401_DEVICE) acpi_create_platform_device(adev); #endif return 1; diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 342942f..02e4839 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -69,7 +69,7 @@ static int map_madt_entry(int type, u32 acpi_id) unsigned long madt_end, entry; static struct acpi_table_madt *madt; static int read_madt; - int apic_id = -1; + int phys_id = -1; /* CPU hardware ID */ if (!read_madt) { if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0, @@ -79,7 +79,7 @@ static int map_madt_entry(int type, u32 acpi_id) } if (!madt) - return apic_id; + return phys_id; entry = (unsigned long)madt; madt_end = entry + madt->header.length; @@ -91,18 +91,18 @@ static int map_madt_entry(int type, u32 acpi_id) struct acpi_subtable_header *header = (struct acpi_subtable_header *)entry; if (header->type == ACPI_MADT_TYPE_LOCAL_APIC) { - if (!map_lapic_id(header, acpi_id, &apic_id)) + if (!map_lapic_id(header, acpi_id, &phys_id)) break; } else if (header->type == ACPI_MADT_TYPE_LOCAL_X2APIC) { - if (!map_x2apic_id(header, type, acpi_id, &apic_id)) + if (!map_x2apic_id(header, type, acpi_id, &phys_id)) break; } else if (header->type == ACPI_MADT_TYPE_LOCAL_SAPIC) { - if (!map_lsapic_id(header, type, acpi_id, &apic_id)) + if (!map_lsapic_id(header, type, acpi_id, &phys_id)) break; } entry += header->length; } - return apic_id; + return phys_id; } static int map_mat_entry(acpi_handle handle, int type, u32 acpi_id) @@ -110,7 +110,7 @@ static int map_mat_entry(acpi_handle handle, int type, u32 acpi_id) struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; union acpi_object *obj; struct acpi_subtable_header *header; - int apic_id = -1; + int phys_id = -1; if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer))) goto exit; @@ -126,38 +126,38 @@ static int map_mat_entry(acpi_handle handle, int type, u32 acpi_id) header = (struct acpi_subtable_header *)obj->buffer.pointer; if (header->type == ACPI_MADT_TYPE_LOCAL_APIC) - map_lapic_id(header, acpi_id, &apic_id); + map_lapic_id(header, acpi_id, &phys_id); else if (header->type == ACPI_MADT_TYPE_LOCAL_SAPIC) - map_lsapic_id(header, type, acpi_id, &apic_id); + map_lsapic_id(header, type, acpi_id, &phys_id); else if (header->type == ACPI_MADT_TYPE_LOCAL_X2APIC) - map_x2apic_id(header, type, acpi_id, &apic_id); + map_x2apic_id(header, type, acpi_id, &phys_id); exit: kfree(buffer.pointer); - return apic_id; + return phys_id; } -int acpi_get_apicid(acpi_handle handle, int type, u32 acpi_id) +int acpi_get_phys_id(acpi_handle handle, int type, u32 acpi_id) { - int apic_id; + int phys_id; - apic_id = map_mat_entry(handle, type, acpi_id); - if (apic_id == -1) - apic_id = map_madt_entry(type, acpi_id); + phys_id = map_mat_entry(handle, type, acpi_id); + if (phys_id == -1) + phys_id = map_madt_entry(type, acpi_id); - return apic_id; + return phys_id; } -int acpi_map_cpuid(int apic_id, u32 acpi_id) +int acpi_map_cpuid(int phys_id, u32 acpi_id) { #ifdef CONFIG_SMP int i; #endif - if (apic_id == -1) { + if (phys_id == -1) { /* * On UP processor, there is no _MAT or MADT table. - * So above apic_id is always set to -1. + * So above phys_id is always set to -1. * * BIOS may define multiple CPU handles even for UP processor. * For example, @@ -170,7 +170,7 @@ int acpi_map_cpuid(int apic_id, u32 acpi_id) * Processor (CPU3, 0x03, 0x00000410, 0x06) {} * } * - * Ignores apic_id and always returns 0 for the processor + * Ignores phys_id and always returns 0 for the processor * handle with acpi id 0 if nr_cpu_ids is 1. * This should be the case if SMP tables are not found. * Return -1 for other CPU's handle. @@ -178,28 +178,28 @@ int acpi_map_cpuid(int apic_id, u32 acpi_id) if (nr_cpu_ids <= 1 && acpi_id == 0) return acpi_id; else - return apic_id; + return phys_id; } #ifdef CONFIG_SMP for_each_possible_cpu(i) { - if (cpu_physical_id(i) == apic_id) + if (cpu_physical_id(i) == phys_id) return i; } #else /* In UP kernel, only processor 0 is valid */ - if (apic_id == 0) - return apic_id; + if (phys_id == 0) + return phys_id; #endif return -1; } int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id) { - int apic_id; + int phys_id; - apic_id = acpi_get_apicid(handle, type, acpi_id); + phys_id = acpi_get_phys_id(handle, type, acpi_id); - return acpi_map_cpuid(apic_id, acpi_id); + return acpi_map_cpuid(phys_id, acpi_id); } EXPORT_SYMBOL_GPL(acpi_get_cpuid); diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 16914cc..dc4d896 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1001,7 +1001,7 @@ static void acpi_free_power_resources_lists(struct acpi_device *device) if (device->wakeup.flags.valid) acpi_power_resources_list_free(&device->wakeup.resources); - if (!device->flags.power_manageable) + if (!device->power.flags.power_resources) return; for (i = ACPI_STATE_D0; i <= ACPI_STATE_D3_HOT; i++) { @@ -1744,10 +1744,8 @@ static void acpi_bus_get_power_flags(struct acpi_device *device) device->power.flags.power_resources) device->power.states[ACPI_STATE_D3_COLD].flags.os_accessible = 1; - if (acpi_bus_init_power(device)) { - acpi_free_power_resources_lists(device); + if (acpi_bus_init_power(device)) device->flags.power_manageable = 0; - } } static void acpi_bus_get_flags(struct acpi_device *device) @@ -2371,13 +2369,18 @@ static void acpi_bus_attach(struct acpi_device *device) /* Skip devices that are not present. */ if (!acpi_device_is_present(device)) { device->flags.visited = false; + device->flags.power_manageable = 0; return; } if (device->handler) goto ok; if (!device->flags.initialized) { - acpi_bus_update_power(device, NULL); + device->flags.power_manageable = + device->power.states[ACPI_STATE_D0].flags.valid; + if (acpi_bus_init_power(device)) + device->flags.power_manageable = 0; + device->flags.initialized = true; } device->flags.visited = false; diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index c72e79d2c5..032db45 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -522,6 +522,16 @@ static struct dmi_system_id video_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_NAME, "370R4E/370R4V/370R5E/3570RE/370R5V"), }, }, + + { + /* https://bugzilla.redhat.com/show_bug.cgi?id=1163574 */ + .callback = video_disable_native_backlight, + .ident = "Dell XPS15 L521X", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "XPS L521X"), + }, + }, {} }; diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c index ae9f615..aa2224a 100644 --- a/drivers/block/null_blk.c +++ b/drivers/block/null_blk.c @@ -530,7 +530,7 @@ static int null_add_dev(void) goto out_cleanup_queues; nullb->q = blk_mq_init_queue(&nullb->tag_set); - if (!nullb->q) { + if (IS_ERR(nullb->q)) { rv = -ENOMEM; goto out_cleanup_tags; } diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c index b1d5d87..cb529e9 100644 --- a/drivers/block/nvme-core.c +++ b/drivers/block/nvme-core.c @@ -215,6 +215,7 @@ static void nvme_set_info(struct nvme_cmd_info *cmd, void *ctx, cmd->fn = handler; cmd->ctx = ctx; cmd->aborted = 0; + blk_mq_start_request(blk_mq_rq_from_pdu(cmd)); } /* Special values must be less than 0x1000 */ @@ -431,8 +432,13 @@ static void req_completion(struct nvme_queue *nvmeq, void *ctx, if (unlikely(status)) { if (!(status & NVME_SC_DNR || blk_noretry_request(req)) && (jiffies - req->start_time) < req->timeout) { + unsigned long flags; + blk_mq_requeue_request(req); - blk_mq_kick_requeue_list(req->q); + spin_lock_irqsave(req->q->queue_lock, flags); + if (!blk_queue_stopped(req->q)) + blk_mq_kick_requeue_list(req->q); + spin_unlock_irqrestore(req->q->queue_lock, flags); return; } req->errors = nvme_error_status(status); @@ -664,8 +670,6 @@ static int nvme_queue_rq(struct blk_mq_hw_ctx *hctx, } } - blk_mq_start_request(req); - nvme_set_info(cmd, iod, req_completion); spin_lock_irq(&nvmeq->q_lock); if (req->cmd_flags & REQ_DISCARD) @@ -835,6 +839,7 @@ static int nvme_submit_async_admin_req(struct nvme_dev *dev) if (IS_ERR(req)) return PTR_ERR(req); + req->cmd_flags |= REQ_NO_TIMEOUT; cmd_info = blk_mq_rq_to_pdu(req); nvme_set_info(cmd_info, req, async_req_completion); @@ -1016,14 +1021,19 @@ static void nvme_abort_req(struct request *req) struct nvme_command cmd; if (!nvmeq->qid || cmd_rq->aborted) { + unsigned long flags; + + spin_lock_irqsave(&dev_list_lock, flags); if (work_busy(&dev->reset_work)) - return; + goto out; list_del_init(&dev->node); dev_warn(&dev->pci_dev->dev, "I/O %d QID %d timeout, reset controller\n", req->tag, nvmeq->qid); dev->reset_workfn = nvme_reset_failed_dev; queue_work(nvme_workq, &dev->reset_work); + out: + spin_unlock_irqrestore(&dev_list_lock, flags); return; } @@ -1064,15 +1074,22 @@ static void nvme_cancel_queue_ios(struct blk_mq_hw_ctx *hctx, void *ctx; nvme_completion_fn fn; struct nvme_cmd_info *cmd; - static struct nvme_completion cqe = { - .status = cpu_to_le16(NVME_SC_ABORT_REQ << 1), - }; + struct nvme_completion cqe; + + if (!blk_mq_request_started(req)) + return; cmd = blk_mq_rq_to_pdu(req); if (cmd->ctx == CMD_CTX_CANCELLED) return; + if (blk_queue_dying(req->q)) + cqe.status = cpu_to_le16((NVME_SC_ABORT_REQ | NVME_SC_DNR) << 1); + else + cqe.status = cpu_to_le16(NVME_SC_ABORT_REQ << 1); + + dev_warn(nvmeq->q_dmadev, "Cancelling I/O %d QID %d\n", req->tag, nvmeq->qid); ctx = cancel_cmd_info(cmd, &fn); @@ -1084,17 +1101,29 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved) struct nvme_cmd_info *cmd = blk_mq_rq_to_pdu(req); struct nvme_queue *nvmeq = cmd->nvmeq; - dev_warn(nvmeq->q_dmadev, "Timeout I/O %d QID %d\n", req->tag, - nvmeq->qid); - if (nvmeq->dev->initialized) - nvme_abort_req(req); - /* * The aborted req will be completed on receiving the abort req. * We enable the timer again. If hit twice, it'll cause a device reset, * as the device then is in a faulty state. */ - return BLK_EH_RESET_TIMER; + int ret = BLK_EH_RESET_TIMER; + + dev_warn(nvmeq->q_dmadev, "Timeout I/O %d QID %d\n", req->tag, + nvmeq->qid); + + spin_lock_irq(&nvmeq->q_lock); + if (!nvmeq->dev->initialized) { + /* + * Force cancelled command frees the request, which requires we + * return BLK_EH_NOT_HANDLED. + */ + nvme_cancel_queue_ios(nvmeq->hctx, req, nvmeq, reserved); + ret = BLK_EH_NOT_HANDLED; + } else + nvme_abort_req(req); + spin_unlock_irq(&nvmeq->q_lock); + + return ret; } static void nvme_free_queue(struct nvme_queue *nvmeq) @@ -1131,10 +1160,16 @@ static void nvme_free_queues(struct nvme_dev *dev, int lowest) */ static int nvme_suspend_queue(struct nvme_queue *nvmeq) { - int vector = nvmeq->dev->entry[nvmeq->cq_vector].vector; + int vector; spin_lock_irq(&nvmeq->q_lock); + if (nvmeq->cq_vector == -1) { + spin_unlock_irq(&nvmeq->q_lock); + return 1; + } + vector = nvmeq->dev->entry[nvmeq->cq_vector].vector; nvmeq->dev->online_queues--; + nvmeq->cq_vector = -1; spin_unlock_irq(&nvmeq->q_lock); irq_set_affinity_hint(vector, NULL); @@ -1169,11 +1204,13 @@ static void nvme_disable_queue(struct nvme_dev *dev, int qid) adapter_delete_sq(dev, qid); adapter_delete_cq(dev, qid); } + if (!qid && dev->admin_q) + blk_mq_freeze_queue_start(dev->admin_q); nvme_clear_queue(nvmeq); } static struct nvme_queue *nvme_alloc_queue(struct nvme_dev *dev, int qid, - int depth, int vector) + int depth) { struct device *dmadev = &dev->pci_dev->dev; struct nvme_queue *nvmeq = kzalloc(sizeof(*nvmeq), GFP_KERNEL); @@ -1199,7 +1236,6 @@ static struct nvme_queue *nvme_alloc_queue(struct nvme_dev *dev, int qid, nvmeq->cq_phase = 1; nvmeq->q_db = &dev->dbs[qid * 2 * dev->db_stride]; nvmeq->q_depth = depth; - nvmeq->cq_vector = vector; nvmeq->qid = qid; dev->queue_count++; dev->queues[qid] = nvmeq; @@ -1244,6 +1280,7 @@ static int nvme_create_queue(struct nvme_queue *nvmeq, int qid) struct nvme_dev *dev = nvmeq->dev; int result; + nvmeq->cq_vector = qid - 1; result = adapter_alloc_cq(dev, qid, nvmeq); if (result < 0) return result; @@ -1355,6 +1392,14 @@ static struct blk_mq_ops nvme_mq_ops = { .timeout = nvme_timeout, }; +static void nvme_dev_remove_admin(struct nvme_dev *dev) +{ + if (dev->admin_q && !blk_queue_dying(dev->admin_q)) { + blk_cleanup_queue(dev->admin_q); + blk_mq_free_tag_set(&dev->admin_tagset); + } +} + static int nvme_alloc_admin_tags(struct nvme_dev *dev) { if (!dev->admin_q) { @@ -1370,21 +1415,20 @@ static int nvme_alloc_admin_tags(struct nvme_dev *dev) return -ENOMEM; dev->admin_q = blk_mq_init_queue(&dev->admin_tagset); - if (!dev->admin_q) { + if (IS_ERR(dev->admin_q)) { blk_mq_free_tag_set(&dev->admin_tagset); return -ENOMEM; } - } + if (!blk_get_queue(dev->admin_q)) { + nvme_dev_remove_admin(dev); + return -ENODEV; + } + } else + blk_mq_unfreeze_queue(dev->admin_q); return 0; } -static void nvme_free_admin_tags(struct nvme_dev *dev) -{ - if (dev->admin_q) - blk_mq_free_tag_set(&dev->admin_tagset); -} - static int nvme_configure_admin_queue(struct nvme_dev *dev) { int result; @@ -1416,7 +1460,7 @@ static int nvme_configure_admin_queue(struct nvme_dev *dev) nvmeq = dev->queues[0]; if (!nvmeq) { - nvmeq = nvme_alloc_queue(dev, 0, NVME_AQ_DEPTH, 0); + nvmeq = nvme_alloc_queue(dev, 0, NVME_AQ_DEPTH); if (!nvmeq) return -ENOMEM; } @@ -1439,18 +1483,13 @@ static int nvme_configure_admin_queue(struct nvme_dev *dev) if (result) goto free_nvmeq; - result = nvme_alloc_admin_tags(dev); - if (result) - goto free_nvmeq; - + nvmeq->cq_vector = 0; result = queue_request_irq(dev, nvmeq, nvmeq->irqname); if (result) - goto free_tags; + goto free_nvmeq; return result; - free_tags: - nvme_free_admin_tags(dev); free_nvmeq: nvme_free_queues(dev, 0); return result; @@ -1944,7 +1983,7 @@ static void nvme_create_io_queues(struct nvme_dev *dev) unsigned i; for (i = dev->queue_count; i <= dev->max_qid; i++) - if (!nvme_alloc_queue(dev, i, dev->q_depth, i - 1)) + if (!nvme_alloc_queue(dev, i, dev->q_depth)) break; for (i = dev->online_queues; i <= dev->queue_count - 1; i++) @@ -2235,13 +2274,18 @@ static void nvme_wait_dq(struct nvme_delq_ctx *dq, struct nvme_dev *dev) break; if (!schedule_timeout(ADMIN_TIMEOUT) || fatal_signal_pending(current)) { + /* + * Disable the controller first since we can't trust it + * at this point, but leave the admin queue enabled + * until all queue deletion requests are flushed. + * FIXME: This may take a while if there are more h/w + * queues than admin tags. + */ set_current_state(TASK_RUNNING); - nvme_disable_ctrl(dev, readq(&dev->bar->cap)); - nvme_disable_queue(dev, 0); - - send_sig(SIGKILL, dq->worker->task, 1); + nvme_clear_queue(dev->queues[0]); flush_kthread_worker(dq->worker); + nvme_disable_queue(dev, 0); return; } } @@ -2318,7 +2362,6 @@ static void nvme_del_queue_start(struct kthread_work *work) { struct nvme_queue *nvmeq = container_of(work, struct nvme_queue, cmdinfo.work); - allow_signal(SIGKILL); if (nvme_delete_sq(nvmeq)) nvme_del_queue_end(nvmeq); } @@ -2376,6 +2419,34 @@ static void nvme_dev_list_remove(struct nvme_dev *dev) kthread_stop(tmp); } +static void nvme_freeze_queues(struct nvme_dev *dev) +{ + struct nvme_ns *ns; + + list_for_each_entry(ns, &dev->namespaces, list) { + blk_mq_freeze_queue_start(ns->queue); + + spin_lock(ns->queue->queue_lock); + queue_flag_set(QUEUE_FLAG_STOPPED, ns->queue); + spin_unlock(ns->queue->queue_lock); + + blk_mq_cancel_requeue_work(ns->queue); + blk_mq_stop_hw_queues(ns->queue); + } +} + +static void nvme_unfreeze_queues(struct nvme_dev *dev) +{ + struct nvme_ns *ns; + + list_for_each_entry(ns, &dev->namespaces, list) { + queue_flag_clear_unlocked(QUEUE_FLAG_STOPPED, ns->queue); + blk_mq_unfreeze_queue(ns->queue); + blk_mq_start_stopped_hw_queues(ns->queue, true); + blk_mq_kick_requeue_list(ns->queue); + } +} + static void nvme_dev_shutdown(struct nvme_dev *dev) { int i; @@ -2384,8 +2455,10 @@ static void nvme_dev_shutdown(struct nvme_dev *dev) dev->initialized = 0; nvme_dev_list_remove(dev); - if (dev->bar) + if (dev->bar) { + nvme_freeze_queues(dev); csts = readl(&dev->bar->csts); + } if (csts & NVME_CSTS_CFS || !(csts & NVME_CSTS_RDY)) { for (i = dev->queue_count - 1; i >= 0; i--) { struct nvme_queue *nvmeq = dev->queues[i]; @@ -2400,12 +2473,6 @@ static void nvme_dev_shutdown(struct nvme_dev *dev) nvme_dev_unmap(dev); } -static void nvme_dev_remove_admin(struct nvme_dev *dev) -{ - if (dev->admin_q && !blk_queue_dying(dev->admin_q)) - blk_cleanup_queue(dev->admin_q); -} - static void nvme_dev_remove(struct nvme_dev *dev) { struct nvme_ns *ns; @@ -2413,8 +2480,10 @@ static void nvme_dev_remove(struct nvme_dev *dev) list_for_each_entry(ns, &dev->namespaces, list) { if (ns->disk->flags & GENHD_FL_UP) del_gendisk(ns->disk); - if (!blk_queue_dying(ns->queue)) + if (!blk_queue_dying(ns->queue)) { + blk_mq_abort_requeue_list(ns->queue); blk_cleanup_queue(ns->queue); + } } } @@ -2495,6 +2564,7 @@ static void nvme_free_dev(struct kref *kref) nvme_free_namespaces(dev); nvme_release_instance(dev); blk_mq_free_tag_set(&dev->tagset); + blk_put_queue(dev->admin_q); kfree(dev->queues); kfree(dev->entry); kfree(dev); @@ -2591,15 +2661,20 @@ static int nvme_dev_start(struct nvme_dev *dev) } nvme_init_queue(dev->queues[0], 0); + result = nvme_alloc_admin_tags(dev); + if (result) + goto disable; result = nvme_setup_io_queues(dev); if (result) - goto disable; + goto free_tags; nvme_set_irq_hints(dev); return result; + free_tags: + nvme_dev_remove_admin(dev); disable: nvme_disable_queue(dev, 0); nvme_dev_list_remove(dev); @@ -2639,6 +2714,9 @@ static int nvme_dev_resume(struct nvme_dev *dev) dev->reset_workfn = nvme_remove_disks; queue_work(nvme_workq, &dev->reset_work); spin_unlock(&dev_list_lock); + } else { + nvme_unfreeze_queues(dev); + nvme_set_irq_hints(dev); } dev->initialized = 1; return 0; @@ -2776,11 +2854,10 @@ static void nvme_remove(struct pci_dev *pdev) pci_set_drvdata(pdev, NULL); flush_work(&dev->reset_work); misc_deregister(&dev->miscdev); - nvme_dev_remove(dev); nvme_dev_shutdown(dev); + nvme_dev_remove(dev); nvme_dev_remove_admin(dev); nvme_free_queues(dev, 0); - nvme_free_admin_tags(dev); nvme_release_prp_pools(dev); kref_put(&dev->kref, nvme_free_dev); } diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 7ef7c09..cdfbd21 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -638,7 +638,7 @@ static int virtblk_probe(struct virtio_device *vdev) goto out_put_disk; q = vblk->disk->queue = blk_mq_init_queue(&vblk->tag_set); - if (!q) { + if (IS_ERR(q)) { err = -ENOMEM; goto out_free_tags; } diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c index fd5a5e8..982b963 100644 --- a/drivers/char/ipmi/ipmi_ssif.c +++ b/drivers/char/ipmi/ipmi_ssif.c @@ -969,7 +969,8 @@ static void sender(void *send_info, do_gettimeofday(&t); pr_info("**Enqueue %02x %02x: %ld.%6.6ld\n", - msg->data[0], msg->data[1], t.tv_sec, t.tv_usec); + msg->data[0], msg->data[1], + (long) t.tv_sec, (long) t.tv_usec); } } diff --git a/drivers/gpio/gpio-dln2.c b/drivers/gpio/gpio-dln2.c index 978b51e..ce3c155 100644 --- a/drivers/gpio/gpio-dln2.c +++ b/drivers/gpio/gpio-dln2.c @@ -47,13 +47,6 @@ #define DLN2_GPIO_MAX_PINS 32 -struct dln2_irq_work { - struct work_struct work; - struct dln2_gpio *dln2; - int pin; - int type; -}; - struct dln2_gpio { struct platform_device *pdev; struct gpio_chip gpio; @@ -64,10 +57,12 @@ struct dln2_gpio { */ DECLARE_BITMAP(output_enabled, DLN2_GPIO_MAX_PINS); - DECLARE_BITMAP(irqs_masked, DLN2_GPIO_MAX_PINS); - DECLARE_BITMAP(irqs_enabled, DLN2_GPIO_MAX_PINS); - DECLARE_BITMAP(irqs_pending, DLN2_GPIO_MAX_PINS); - struct dln2_irq_work *irq_work; + /* active IRQs - not synced to hardware */ + DECLARE_BITMAP(unmasked_irqs, DLN2_GPIO_MAX_PINS); + /* active IRQS - synced to hardware */ + DECLARE_BITMAP(enabled_irqs, DLN2_GPIO_MAX_PINS); + int irq_type[DLN2_GPIO_MAX_PINS]; + struct mutex irq_lock; }; struct dln2_gpio_pin { @@ -141,16 +136,16 @@ static int dln2_gpio_pin_get_out_val(struct dln2_gpio *dln2, unsigned int pin) return !!ret; } -static void dln2_gpio_pin_set_out_val(struct dln2_gpio *dln2, - unsigned int pin, int value) +static int dln2_gpio_pin_set_out_val(struct dln2_gpio *dln2, + unsigned int pin, int value) { struct dln2_gpio_pin_val req = { .pin = cpu_to_le16(pin), .value = value, }; - dln2_transfer_tx(dln2->pdev, DLN2_GPIO_PIN_SET_OUT_VAL, &req, - sizeof(req)); + return dln2_transfer_tx(dln2->pdev, DLN2_GPIO_PIN_SET_OUT_VAL, &req, + sizeof(req)); } #define DLN2_GPIO_DIRECTION_IN 0 @@ -267,6 +262,13 @@ static int dln2_gpio_direction_input(struct gpio_chip *chip, unsigned offset) static int dln2_gpio_direction_output(struct gpio_chip *chip, unsigned offset, int value) { + struct dln2_gpio *dln2 = container_of(chip, struct dln2_gpio, gpio); + int ret; + + ret = dln2_gpio_pin_set_out_val(dln2, offset, value); + if (ret < 0) + return ret; + return dln2_gpio_set_direction(chip, offset, DLN2_GPIO_DIRECTION_OUT); } @@ -297,36 +299,13 @@ static int dln2_gpio_set_event_cfg(struct dln2_gpio *dln2, unsigned pin, &req, sizeof(req)); } -static void dln2_irq_work(struct work_struct *w) -{ - struct dln2_irq_work *iw = container_of(w, struct dln2_irq_work, work); - struct dln2_gpio *dln2 = iw->dln2; - u8 type = iw->type & DLN2_GPIO_EVENT_MASK; - - if (test_bit(iw->pin, dln2->irqs_enabled)) - dln2_gpio_set_event_cfg(dln2, iw->pin, type, 0); - else - dln2_gpio_set_event_cfg(dln2, iw->pin, DLN2_GPIO_EVENT_NONE, 0); -} - -static void dln2_irq_enable(struct irq_data *irqd) -{ - struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd); - struct dln2_gpio *dln2 = container_of(gc, struct dln2_gpio, gpio); - int pin = irqd_to_hwirq(irqd); - - set_bit(pin, dln2->irqs_enabled); - schedule_work(&dln2->irq_work[pin].work); -} - -static void dln2_irq_disable(struct irq_data *irqd) +static void dln2_irq_unmask(struct irq_data *irqd) { struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd); struct dln2_gpio *dln2 = container_of(gc, struct dln2_gpio, gpio); int pin = irqd_to_hwirq(irqd); - clear_bit(pin, dln2->irqs_enabled); - schedule_work(&dln2->irq_work[pin].work); + set_bit(pin, dln2->unmasked_irqs); } static void dln2_irq_mask(struct irq_data *irqd) @@ -335,27 +314,7 @@ static void dln2_irq_mask(struct irq_data *irqd) struct dln2_gpio *dln2 = container_of(gc, struct dln2_gpio, gpio); int pin = irqd_to_hwirq(irqd); - set_bit(pin, dln2->irqs_masked); -} - -static void dln2_irq_unmask(struct irq_data *irqd) -{ - struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd); - struct dln2_gpio *dln2 = container_of(gc, struct dln2_gpio, gpio); - struct device *dev = dln2->gpio.dev; - int pin = irqd_to_hwirq(irqd); - - if (test_and_clear_bit(pin, dln2->irqs_pending)) { - int irq; - - irq = irq_find_mapping(dln2->gpio.irqdomain, pin); - if (!irq) { - dev_err(dev, "pin %d not mapped to IRQ\n", pin); - return; - } - - generic_handle_irq(irq); - } + clear_bit(pin, dln2->unmasked_irqs); } static int dln2_irq_set_type(struct irq_data *irqd, unsigned type) @@ -366,19 +325,19 @@ static int dln2_irq_set_type(struct irq_data *irqd, unsigned type) switch (type) { case IRQ_TYPE_LEVEL_HIGH: - dln2->irq_work[pin].type = DLN2_GPIO_EVENT_LVL_HIGH; + dln2->irq_type[pin] = DLN2_GPIO_EVENT_LVL_HIGH; break; case IRQ_TYPE_LEVEL_LOW: - dln2->irq_work[pin].type = DLN2_GPIO_EVENT_LVL_LOW; + dln2->irq_type[pin] = DLN2_GPIO_EVENT_LVL_LOW; break; case IRQ_TYPE_EDGE_BOTH: - dln2->irq_work[pin].type = DLN2_GPIO_EVENT_CHANGE; + dln2->irq_type[pin] = DLN2_GPIO_EVENT_CHANGE; break; case IRQ_TYPE_EDGE_RISING: - dln2->irq_work[pin].type = DLN2_GPIO_EVENT_CHANGE_RISING; + dln2->irq_type[pin] = DLN2_GPIO_EVENT_CHANGE_RISING; break; case IRQ_TYPE_EDGE_FALLING: - dln2->irq_work[pin].type = DLN2_GPIO_EVENT_CHANGE_FALLING; + dln2->irq_type[pin] = DLN2_GPIO_EVENT_CHANGE_FALLING; break; default: return -EINVAL; @@ -387,13 +346,50 @@ static int dln2_irq_set_type(struct irq_data *irqd, unsigned type) return 0; } +static void dln2_irq_bus_lock(struct irq_data *irqd) +{ + struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd); + struct dln2_gpio *dln2 = container_of(gc, struct dln2_gpio, gpio); + + mutex_lock(&dln2->irq_lock); +} + +static void dln2_irq_bus_unlock(struct irq_data *irqd) +{ + struct gpio_chip *gc = irq_data_get_irq_chip_data(irqd); + struct dln2_gpio *dln2 = container_of(gc, struct dln2_gpio, gpio); + int pin = irqd_to_hwirq(irqd); + int enabled, unmasked; + unsigned type; + int ret; + + enabled = test_bit(pin, dln2->enabled_irqs); + unmasked = test_bit(pin, dln2->unmasked_irqs); + + if (enabled != unmasked) { + if (unmasked) { + type = dln2->irq_type[pin] & DLN2_GPIO_EVENT_MASK; + set_bit(pin, dln2->enabled_irqs); + } else { + type = DLN2_GPIO_EVENT_NONE; + clear_bit(pin, dln2->enabled_irqs); + } + + ret = dln2_gpio_set_event_cfg(dln2, pin, type, 0); + if (ret) + dev_err(dln2->gpio.dev, "failed to set event\n"); + } + + mutex_unlock(&dln2->irq_lock); +} + static struct irq_chip dln2_gpio_irqchip = { .name = "dln2-irq", - .irq_enable = dln2_irq_enable, - .irq_disable = dln2_irq_disable, .irq_mask = dln2_irq_mask, .irq_unmask = dln2_irq_unmask, .irq_set_type = dln2_irq_set_type, + .irq_bus_lock = dln2_irq_bus_lock, + .irq_bus_sync_unlock = dln2_irq_bus_unlock, }; static void dln2_gpio_event(struct platform_device *pdev, u16 echo, @@ -425,14 +421,7 @@ static void dln2_gpio_event(struct platform_device *pdev, u16 echo, return; } - if (!test_bit(pin, dln2->irqs_enabled)) - return; - if (test_bit(pin, dln2->irqs_masked)) { - set_bit(pin, dln2->irqs_pending); - return; - } - - switch (dln2->irq_work[pin].type) { + switch (dln2->irq_type[pin]) { case DLN2_GPIO_EVENT_CHANGE_RISING: if (event->value) generic_handle_irq(irq); @@ -451,7 +440,7 @@ static int dln2_gpio_probe(struct platform_device *pdev) struct dln2_gpio *dln2; struct device *dev = &pdev->dev; int pins; - int i, ret; + int ret; pins = dln2_gpio_get_pin_count(pdev); if (pins < 0) { @@ -467,15 +456,7 @@ static int dln2_gpio_probe(struct platform_device *pdev) if (!dln2) return -ENOMEM; - dln2->irq_work = devm_kcalloc(&pdev->dev, pins, - sizeof(struct dln2_irq_work), GFP_KERNEL); - if (!dln2->irq_work) - return -ENOMEM; - for (i = 0; i < pins; i++) { - INIT_WORK(&dln2->irq_work[i].work, dln2_irq_work); - dln2->irq_work[i].pin = i; - dln2->irq_work[i].dln2 = dln2; - } + mutex_init(&dln2->irq_lock); dln2->pdev = pdev; @@ -529,11 +510,8 @@ out: static int dln2_gpio_remove(struct platform_device *pdev) { struct dln2_gpio *dln2 = platform_get_drvdata(pdev); - int i; dln2_unregister_event_cb(pdev, DLN2_GPIO_CONDITION_MET_EV); - for (i = 0; i < dln2->gpio.ngpio; i++) - flush_work(&dln2->irq_work[i].work); gpiochip_remove(&dln2->gpio); return 0; diff --git a/drivers/gpio/gpio-grgpio.c b/drivers/gpio/gpio-grgpio.c index 09daaf2..3a5a710 100644 --- a/drivers/gpio/gpio-grgpio.c +++ b/drivers/gpio/gpio-grgpio.c @@ -441,7 +441,8 @@ static int grgpio_probe(struct platform_device *ofdev) err = gpiochip_add(gc); if (err) { dev_err(&ofdev->dev, "Could not add gpiochip\n"); - irq_domain_remove(priv->domain); + if (priv->domain) + irq_domain_remove(priv->domain); return err; } diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index 66e4039..e620807 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -37,6 +37,7 @@ obj-$(CONFIG_DRM_MIPI_DSI) += drm_mipi_dsi.o obj-$(CONFIG_DRM_TTM) += ttm/ obj-$(CONFIG_DRM_TDFX) += tdfx/ obj-$(CONFIG_DRM_R128) += r128/ +obj-$(CONFIG_HSA_AMD) += amd/amdkfd/ obj-$(CONFIG_DRM_RADEON)+= radeon/ obj-$(CONFIG_DRM_MGA) += mga/ obj-$(CONFIG_DRM_I810) += i810/ @@ -67,4 +68,3 @@ obj-$(CONFIG_DRM_IMX) += imx/ obj-y += i2c/ obj-y += panel/ obj-y += bridge/ -obj-$(CONFIG_HSA_AMD) += amd/amdkfd/ diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index 7d4974b..fcfdf23 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -31,7 +31,6 @@ #include <uapi/linux/kfd_ioctl.h> #include <linux/time.h> #include <linux/mm.h> -#include <linux/uaccess.h> #include <uapi/asm-generic/mman-common.h> #include <asm/processor.h> #include "kfd_priv.h" @@ -127,17 +126,14 @@ static int kfd_open(struct inode *inode, struct file *filep) return 0; } -static long kfd_ioctl_get_version(struct file *filep, struct kfd_process *p, - void __user *arg) +static int kfd_ioctl_get_version(struct file *filep, struct kfd_process *p, + void *data) { - struct kfd_ioctl_get_version_args args; + struct kfd_ioctl_get_version_args *args = data; int err = 0; - args.major_version = KFD_IOCTL_MAJOR_VERSION; - args.minor_version = KFD_IOCTL_MINOR_VERSION; - - if (copy_to_user(arg, &args, sizeof(args))) - err = -EFAULT; + args->major_version = KFD_IOCTL_MAJOR_VERSION; + args->minor_version = KFD_IOCTL_MINOR_VERSION; return err; } @@ -221,10 +217,10 @@ static int set_queue_properties_from_user(struct queue_properties *q_properties, return 0; } -static long kfd_ioctl_create_queue(struct file *filep, struct kfd_process *p, - void __user *arg) +static int kfd_ioctl_create_queue(struct file *filep, struct kfd_process *p, + void *data) { - struct kfd_ioctl_create_queue_args args; + struct kfd_ioctl_create_queue_args *args = data; struct kfd_dev *dev; int err = 0; unsigned int queue_id; @@ -233,16 +229,13 @@ static long kfd_ioctl_create_queue(struct file *filep, struct kfd_process *p, memset(&q_properties, 0, sizeof(struct queue_properties)); - if (copy_from_user(&args, arg, sizeof(args))) - return -EFAULT; - pr_debug("kfd: creating queue ioctl\n"); - err = set_queue_properties_from_user(&q_properties, &args); + err = set_queue_properties_from_user(&q_properties, args); if (err) return err; - dev = kfd_device_by_id(args.gpu_id); + dev = kfd_device_by_id(args->gpu_id); if (dev == NULL) return -EINVAL; @@ -250,7 +243,7 @@ static long kfd_ioctl_create_queue(struct file *filep, struct kfd_process *p, pdd = kfd_bind_process_to_device(dev, p); if (IS_ERR(pdd)) { - err = PTR_ERR(pdd); + err = -ESRCH; goto err_bind_process; } @@ -263,33 +256,26 @@ static long kfd_ioctl_create_queue(struct file *filep, struct kfd_process *p, if (err != 0) goto err_create_queue; - args.queue_id = queue_id; + args->queue_id = queue_id; /* Return gpu_id as doorbell offset for mmap usage */ - args.doorbell_offset = args.gpu_id << PAGE_SHIFT; - - if (copy_to_user(arg, &args, sizeof(args))) { - err = -EFAULT; - goto err_copy_args_out; - } + args->doorbell_offset = args->gpu_id << PAGE_SHIFT; mutex_unlock(&p->mutex); - pr_debug("kfd: queue id %d was created successfully\n", args.queue_id); + pr_debug("kfd: queue id %d was created successfully\n", args->queue_id); pr_debug("ring buffer address == 0x%016llX\n", - args.ring_base_address); + args->ring_base_address); pr_debug("read ptr address == 0x%016llX\n", - args.read_pointer_address); + args->read_pointer_address); pr_debug("write ptr address == 0x%016llX\n", - args.write_pointer_address); + args->write_pointer_address); return 0; -err_copy_args_out: - pqm_destroy_queue(&p->pqm, queue_id); err_create_queue: err_bind_process: mutex_unlock(&p->mutex); @@ -297,99 +283,90 @@ err_bind_process: } static int kfd_ioctl_destroy_queue(struct file *filp, struct kfd_process *p, - void __user *arg) + void *data) { int retval; - struct kfd_ioctl_destroy_queue_args args; - - if (copy_from_user(&args, arg, sizeof(args))) - return -EFAULT; + struct kfd_ioctl_destroy_queue_args *args = data; pr_debug("kfd: destroying queue id %d for PASID %d\n", - args.queue_id, + args->queue_id, p->pasid); mutex_lock(&p->mutex); - retval = pqm_destroy_queue(&p->pqm, args.queue_id); + retval = pqm_destroy_queue(&p->pqm, args->queue_id); mutex_unlock(&p->mutex); return retval; } static int kfd_ioctl_update_queue(struct file *filp, struct kfd_process *p, - void __user *arg) + void *data) { int retval; - struct kfd_ioctl_update_queue_args args; + struct kfd_ioctl_update_queue_args *args = data; struct queue_properties properties; - if (copy_from_user(&args, arg, sizeof(args))) - return -EFAULT; - - if (args.queue_percentage > KFD_MAX_QUEUE_PERCENTAGE) { + if (args->queue_percentage > KFD_MAX_QUEUE_PERCENTAGE) { pr_err("kfd: queue percentage must be between 0 to KFD_MAX_QUEUE_PERCENTAGE\n"); return -EINVAL; } - if (args.queue_priority > KFD_MAX_QUEUE_PRIORITY) { + if (args->queue_priority > KFD_MAX_QUEUE_PRIORITY) { pr_err("kfd: queue priority must be between 0 to KFD_MAX_QUEUE_PRIORITY\n"); return -EINVAL; } - if ((args.ring_base_address) && + if ((args->ring_base_address) && (!access_ok(VERIFY_WRITE, - (const void __user *) args.ring_base_address, + (const void __user *) args->ring_base_address, sizeof(uint64_t)))) { pr_err("kfd: can't access ring base address\n"); return -EFAULT; } - if (!is_power_of_2(args.ring_size) && (args.ring_size != 0)) { + if (!is_power_of_2(args->ring_size) && (args->ring_size != 0)) { pr_err("kfd: ring size must be a power of 2 or 0\n"); return -EINVAL; } - properties.queue_address = args.ring_base_address; - properties.queue_size = args.ring_size; - properties.queue_percent = args.queue_percentage; - properties.priority = args.queue_priority; + properties.queue_address = args->ring_base_address; + properties.queue_size = args->ring_size; + properties.queue_percent = args->queue_percentage; + properties.priority = args->queue_priority; pr_debug("kfd: updating queue id %d for PASID %d\n", - args.queue_id, p->pasid); + args->queue_id, p->pasid); mutex_lock(&p->mutex); - retval = pqm_update_queue(&p->pqm, args.queue_id, &properties); + retval = pqm_update_queue(&p->pqm, args->queue_id, &properties); mutex_unlock(&p->mutex); return retval; } -static long kfd_ioctl_set_memory_policy(struct file *filep, - struct kfd_process *p, void __user *arg) +static int kfd_ioctl_set_memory_policy(struct file *filep, + struct kfd_process *p, void *data) { - struct kfd_ioctl_set_memory_policy_args args; + struct kfd_ioctl_set_memory_policy_args *args = data; struct kfd_dev *dev; int err = 0; struct kfd_process_device *pdd; enum cache_policy default_policy, alternate_policy; - if (copy_from_user(&args, arg, sizeof(args))) - return -EFAULT; - - if (args.default_policy != KFD_IOC_CACHE_POLICY_COHERENT - && args.default_policy != KFD_IOC_CACHE_POLICY_NONCOHERENT) { + if (args->default_policy != KFD_IOC_CACHE_POLICY_COHERENT + && args->default_policy != KFD_IOC_CACHE_POLICY_NONCOHERENT) { return -EINVAL; } - if (args.alternate_policy != KFD_IOC_CACHE_POLICY_COHERENT - && args.alternate_policy != KFD_IOC_CACHE_POLICY_NONCOHERENT) { + if (args->alternate_policy != KFD_IOC_CACHE_POLICY_COHERENT + && args->alternate_policy != KFD_IOC_CACHE_POLICY_NONCOHERENT) { return -EINVAL; } - dev = kfd_device_by_id(args.gpu_id); + dev = kfd_device_by_id(args->gpu_id); if (dev == NULL) return -EINVAL; @@ -397,23 +374,23 @@ static long kfd_ioctl_set_memory_policy(struct file *filep, pdd = kfd_bind_process_to_device(dev, p); if (IS_ERR(pdd)) { - err = PTR_ERR(pdd); + err = -ESRCH; goto out; } - default_policy = (args.default_policy == KFD_IOC_CACHE_POLICY_COHERENT) + default_policy = (args->default_policy == KFD_IOC_CACHE_POLICY_COHERENT) ? cache_policy_coherent : cache_policy_noncoherent; alternate_policy = - (args.alternate_policy == KFD_IOC_CACHE_POLICY_COHERENT) + (args->alternate_policy == KFD_IOC_CACHE_POLICY_COHERENT) ? cache_policy_coherent : cache_policy_noncoherent; if (!dev->dqm->set_cache_memory_policy(dev->dqm, &pdd->qpd, default_policy, alternate_policy, - (void __user *)args.alternate_aperture_base, - args.alternate_aperture_size)) + (void __user *)args->alternate_aperture_base, + args->alternate_aperture_size)) err = -EINVAL; out: @@ -422,53 +399,44 @@ out: return err; } -static long kfd_ioctl_get_clock_counters(struct file *filep, - struct kfd_process *p, void __user *arg) +static int kfd_ioctl_get_clock_counters(struct file *filep, + struct kfd_process *p, void *data) { - struct kfd_ioctl_get_clock_counters_args args; + struct kfd_ioctl_get_clock_counters_args *args = data; struct kfd_dev *dev; struct timespec time; - if (copy_from_user(&args, arg, sizeof(args))) - return -EFAULT; - - dev = kfd_device_by_id(args.gpu_id); + dev = kfd_device_by_id(args->gpu_id); if (dev == NULL) return -EINVAL; /* Reading GPU clock counter from KGD */ - args.gpu_clock_counter = kfd2kgd->get_gpu_clock_counter(dev->kgd); + args->gpu_clock_counter = kfd2kgd->get_gpu_clock_counter(dev->kgd); /* No access to rdtsc. Using raw monotonic time */ getrawmonotonic(&time); - args.cpu_clock_counter = (uint64_t)timespec_to_ns(&time); + args->cpu_clock_counter = (uint64_t)timespec_to_ns(&time); get_monotonic_boottime(&time); - args.system_clock_counter = (uint64_t)timespec_to_ns(&time); + args->system_clock_counter = (uint64_t)timespec_to_ns(&time); /* Since the counter is in nano-seconds we use 1GHz frequency */ - args.system_clock_freq = 1000000000; - - if (copy_to_user(arg, &args, sizeof(args))) - return -EFAULT; + args->system_clock_freq = 1000000000; return 0; } static int kfd_ioctl_get_process_apertures(struct file *filp, - struct kfd_process *p, void __user *arg) + struct kfd_process *p, void *data) { - struct kfd_ioctl_get_process_apertures_args args; + struct kfd_ioctl_get_process_apertures_args *args = data; struct kfd_process_device_apertures *pAperture; struct kfd_process_device *pdd; dev_dbg(kfd_device, "get apertures for PASID %d", p->pasid); - if (copy_from_user(&args, arg, sizeof(args))) - return -EFAULT; - - args.num_of_nodes = 0; + args->num_of_nodes = 0; mutex_lock(&p->mutex); @@ -477,7 +445,8 @@ static int kfd_ioctl_get_process_apertures(struct file *filp, /* Run over all pdd of the process */ pdd = kfd_get_first_process_device_data(p); do { - pAperture = &args.process_apertures[args.num_of_nodes]; + pAperture = + &args->process_apertures[args->num_of_nodes]; pAperture->gpu_id = pdd->dev->id; pAperture->lds_base = pdd->lds_base; pAperture->lds_limit = pdd->lds_limit; @@ -487,7 +456,7 @@ static int kfd_ioctl_get_process_apertures(struct file *filp, pAperture->scratch_limit = pdd->scratch_limit; dev_dbg(kfd_device, - "node id %u\n", args.num_of_nodes); + "node id %u\n", args->num_of_nodes); dev_dbg(kfd_device, "gpu id %u\n", pdd->dev->id); dev_dbg(kfd_device, @@ -503,80 +472,131 @@ static int kfd_ioctl_get_process_apertures(struct file *filp, dev_dbg(kfd_device, "scratch_limit %llX\n", pdd->scratch_limit); - args.num_of_nodes++; + args->num_of_nodes++; } while ((pdd = kfd_get_next_process_device_data(p, pdd)) != NULL && - (args.num_of_nodes < NUM_OF_SUPPORTED_GPUS)); + (args->num_of_nodes < NUM_OF_SUPPORTED_GPUS)); } mutex_unlock(&p->mutex); - if (copy_to_user(arg, &args, sizeof(args))) - return -EFAULT; - return 0; } +#define AMDKFD_IOCTL_DEF(ioctl, _func, _flags) \ + [_IOC_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags, .cmd_drv = 0, .name = #ioctl} + +/** Ioctl table */ +static const struct amdkfd_ioctl_desc amdkfd_ioctls[] = { + AMDKFD_IOCTL_DEF(AMDKFD_IOC_GET_VERSION, + kfd_ioctl_get_version, 0), + + AMDKFD_IOCTL_DEF(AMDKFD_IOC_CREATE_QUEUE, + kfd_ioctl_create_queue, 0), + + AMDKFD_IOCTL_DEF(AMDKFD_IOC_DESTROY_QUEUE, + kfd_ioctl_destroy_queue, 0), + + AMDKFD_IOCTL_DEF(AMDKFD_IOC_SET_MEMORY_POLICY, + kfd_ioctl_set_memory_policy, 0), + + AMDKFD_IOCTL_DEF(AMDKFD_IOC_GET_CLOCK_COUNTERS, + kfd_ioctl_get_clock_counters, 0), + + AMDKFD_IOCTL_DEF(AMDKFD_IOC_GET_PROCESS_APERTURES, + kfd_ioctl_get_process_apertures, 0), + + AMDKFD_IOCTL_DEF(AMDKFD_IOC_UPDATE_QUEUE, + kfd_ioctl_update_queue, 0), +}; + +#define AMDKFD_CORE_IOCTL_COUNT ARRAY_SIZE(amdkfd_ioctls) + static long kfd_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) { struct kfd_process *process; - long err = -EINVAL; + amdkfd_ioctl_t *func; + const struct amdkfd_ioctl_desc *ioctl = NULL; + unsigned int nr = _IOC_NR(cmd); + char stack_kdata[128]; + char *kdata = NULL; + unsigned int usize, asize; + int retcode = -EINVAL; - dev_dbg(kfd_device, - "ioctl cmd 0x%x (#%d), arg 0x%lx\n", - cmd, _IOC_NR(cmd), arg); + if (nr >= AMDKFD_CORE_IOCTL_COUNT) + goto err_i1; + + if ((nr >= AMDKFD_COMMAND_START) && (nr < AMDKFD_COMMAND_END)) { + u32 amdkfd_size; + + ioctl = &amdkfd_ioctls[nr]; + + amdkfd_size = _IOC_SIZE(ioctl->cmd); + usize = asize = _IOC_SIZE(cmd); + if (amdkfd_size > asize) + asize = amdkfd_size; + + cmd = ioctl->cmd; + } else + goto err_i1; + + dev_dbg(kfd_device, "ioctl cmd 0x%x (#%d), arg 0x%lx\n", cmd, nr, arg); process = kfd_get_process(current); - if (IS_ERR(process)) - return PTR_ERR(process); + if (IS_ERR(process)) { + dev_dbg(kfd_device, "no process\n"); + goto err_i1; + } - switch (cmd) { - case KFD_IOC_GET_VERSION: - err = kfd_ioctl_get_version(filep, process, (void __user *)arg); - break; - case KFD_IOC_CREATE_QUEUE: - err = kfd_ioctl_create_queue(filep, process, - (void __user *)arg); - break; - - case KFD_IOC_DESTROY_QUEUE: - err = kfd_ioctl_destroy_queue(filep, process, - (void __user *)arg); - break; - - case KFD_IOC_SET_MEMORY_POLICY: - err = kfd_ioctl_set_memory_policy(filep, process, - (void __user *)arg); - break; - - case KFD_IOC_GET_CLOCK_COUNTERS: - err = kfd_ioctl_get_clock_counters(filep, process, - (void __user *)arg); - break; - - case KFD_IOC_GET_PROCESS_APERTURES: - err = kfd_ioctl_get_process_apertures(filep, process, - (void __user *)arg); - break; - - case KFD_IOC_UPDATE_QUEUE: - err = kfd_ioctl_update_queue(filep, process, - (void __user *)arg); - break; - - default: - dev_err(kfd_device, - "unknown ioctl cmd 0x%x, arg 0x%lx)\n", - cmd, arg); - err = -EINVAL; - break; + /* Do not trust userspace, use our own definition */ + func = ioctl->func; + + if (unlikely(!func)) { + dev_dbg(kfd_device, "no function\n"); + retcode = -EINVAL; + goto err_i1; } - if (err < 0) - dev_err(kfd_device, - "ioctl error %ld for ioctl cmd 0x%x (#%d)\n", - err, cmd, _IOC_NR(cmd)); + if (cmd & (IOC_IN | IOC_OUT)) { + if (asize <= sizeof(stack_kdata)) { + kdata = stack_kdata; + } else { + kdata = kmalloc(asize, GFP_KERNEL); + if (!kdata) { + retcode = -ENOMEM; + goto err_i1; + } + } + if (asize > usize) + memset(kdata + usize, 0, asize - usize); + } - return err; + if (cmd & IOC_IN) { + if (copy_from_user(kdata, (void __user *)arg, usize) != 0) { + retcode = -EFAULT; + goto err_i1; + } + } else if (cmd & IOC_OUT) { + memset(kdata, 0, usize); + } + + retcode = func(filep, process, kdata); + + if (cmd & IOC_OUT) + if (copy_to_user((void __user *)arg, kdata, usize) != 0) + retcode = -EFAULT; + +err_i1: + if (!ioctl) + dev_dbg(kfd_device, "invalid ioctl: pid=%d, cmd=0x%02x, nr=0x%02x\n", + task_pid_nr(current), cmd, nr); + + if (kdata != stack_kdata) + kfree(kdata); + + if (retcode) + dev_dbg(kfd_device, "ret = %d\n", retcode); + + return retcode; } static int kfd_mmap(struct file *filp, struct vm_area_struct *vma) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c index 924e90c..9c8961d 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c @@ -161,6 +161,9 @@ static void deallocate_vmid(struct device_queue_manager *dqm, { int bit = qpd->vmid - KFD_VMID_START_OFFSET; + /* Release the vmid mapping */ + set_pasid_vmid_mapping(dqm, 0, qpd->vmid); + set_bit(bit, (unsigned long *)&dqm->vmid_bitmap); qpd->vmid = 0; q->properties.vmid = 0; @@ -272,6 +275,18 @@ static int create_compute_queue_nocpsch(struct device_queue_manager *dqm, return retval; } + pr_debug("kfd: loading mqd to hqd on pipe (%d) queue (%d)\n", + q->pipe, + q->queue); + + retval = mqd->load_mqd(mqd, q->mqd, q->pipe, + q->queue, q->properties.write_ptr); + if (retval != 0) { + deallocate_hqd(dqm, q); + mqd->uninit_mqd(mqd, q->mqd, q->mqd_mem_obj); + return retval; + } + return 0; } @@ -320,6 +335,7 @@ static int update_queue(struct device_queue_manager *dqm, struct queue *q) { int retval; struct mqd_manager *mqd; + bool prev_active = false; BUG_ON(!dqm || !q || !q->mqd); @@ -330,10 +346,18 @@ static int update_queue(struct device_queue_manager *dqm, struct queue *q) return -ENOMEM; } - retval = mqd->update_mqd(mqd, q->mqd, &q->properties); if (q->properties.is_active == true) + prev_active = true; + + /* + * + * check active state vs. the previous state + * and modify counter accordingly + */ + retval = mqd->update_mqd(mqd, q->mqd, &q->properties); + if ((q->properties.is_active == true) && (prev_active == false)) dqm->queue_count++; - else + else if ((q->properties.is_active == false) && (prev_active == true)) dqm->queue_count--; if (sched_policy != KFD_SCHED_POLICY_NO_HWS) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c index adc3147..4c3828c 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager.c @@ -184,7 +184,7 @@ static bool is_occupied(struct mqd_manager *mm, void *mqd, uint32_t queue_id) { - return kfd2kgd->hqd_is_occupies(mm->dev->kgd, queue_address, + return kfd2kgd->hqd_is_occupied(mm->dev->kgd, queue_address, pipe_id, queue_id); } diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_pasid.c b/drivers/gpu/drm/amd/amdkfd/kfd_pasid.c index 71699ad..4c25ef5 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_pasid.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_pasid.c @@ -32,7 +32,7 @@ int kfd_pasid_init(void) { pasid_limit = max_num_of_processes; - pasid_bitmap = kzalloc(BITS_TO_LONGS(pasid_limit), GFP_KERNEL); + pasid_bitmap = kcalloc(BITS_TO_LONGS(pasid_limit), sizeof(long), GFP_KERNEL); if (!pasid_bitmap) return -ENOMEM; diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index f9fb81e3..a5edb29 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -463,6 +463,24 @@ struct kfd_process { bool is_32bit_user_mode; }; +/** + * Ioctl function type. + * + * \param filep pointer to file structure. + * \param p amdkfd process pointer. + * \param data pointer to arg that was copied from user. + */ +typedef int amdkfd_ioctl_t(struct file *filep, struct kfd_process *p, + void *data); + +struct amdkfd_ioctl_desc { + unsigned int cmd; + int flags; + amdkfd_ioctl_t *func; + unsigned int cmd_drv; + const char *name; +}; + void kfd_process_create_wq(void); void kfd_process_destroy_wq(void); struct kfd_process *kfd_create_process(const struct task_struct *); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c index b11792d..cca1708 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c @@ -921,7 +921,7 @@ static int kfd_build_sysfs_node_tree(void) uint32_t i = 0; list_for_each_entry(dev, &topology_device_list, list) { - ret = kfd_build_sysfs_node_entry(dev, 0); + ret = kfd_build_sysfs_node_entry(dev, i); if (ret < 0) return ret; i++; diff --git a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h index 47b5519..96a5122 100644 --- a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h +++ b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h @@ -183,7 +183,7 @@ struct kfd2kgd_calls { int (*hqd_load)(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id, uint32_t queue_id, uint32_t __user *wptr); - bool (*hqd_is_occupies)(struct kgd_dev *kgd, uint64_t queue_address, + bool (*hqd_is_occupied)(struct kgd_dev *kgd, uint64_t queue_address, uint32_t pipe_id, uint32_t queue_id); int (*hqd_destroy)(struct kgd_dev *kgd, uint32_t reset_type, diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 70d0f0f..e9f891c 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1756,8 +1756,6 @@ struct drm_i915_private { */ struct workqueue_struct *dp_wq; - uint32_t bios_vgacntr; - /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */ struct { int (*do_execbuf)(struct drm_device *dev, struct drm_file *file, diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 52adcb6..c11603b 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1048,6 +1048,7 @@ int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data, struct drm_file *file) { + struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_gem_pwrite *args = data; struct drm_i915_gem_object *obj; int ret; @@ -1067,9 +1068,11 @@ i915_gem_pwrite_ioctl(struct drm_device *dev, void *data, return -EFAULT; } + intel_runtime_pm_get(dev_priv); + ret = i915_mutex_lock_interruptible(dev); if (ret) - return ret; + goto put_rpm; obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle)); if (&obj->base == NULL) { @@ -1121,6 +1124,9 @@ out: drm_gem_object_unreference(&obj->base); unlock: mutex_unlock(&dev->struct_mutex); +put_rpm: + intel_runtime_pm_put(dev_priv); + return ret; } diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 996c293..d0d3dfb 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -3725,8 +3725,6 @@ static bool i8xx_handle_vblank(struct drm_device *dev, if ((iir & flip_pending) == 0) goto check_page_flip; - intel_prepare_page_flip(dev, plane); - /* We detect FlipDone by looking for the change in PendingFlip from '1' * to '0' on the following vblank, i.e. IIR has the Pendingflip * asserted following the MI_DISPLAY_FLIP, but ISR is deasserted, hence @@ -3736,6 +3734,7 @@ static bool i8xx_handle_vblank(struct drm_device *dev, if (I915_READ16(ISR) & flip_pending) goto check_page_flip; + intel_prepare_page_flip(dev, plane); intel_finish_page_flip(dev, pipe); return true; @@ -3907,8 +3906,6 @@ static bool i915_handle_vblank(struct drm_device *dev, if ((iir & flip_pending) == 0) goto check_page_flip; - intel_prepare_page_flip(dev, plane); - /* We detect FlipDone by looking for the change in PendingFlip from '1' * to '0' on the following vblank, i.e. IIR has the Pendingflip * asserted following the MI_DISPLAY_FLIP, but ISR is deasserted, hence @@ -3918,6 +3915,7 @@ static bool i915_handle_vblank(struct drm_device *dev, if (I915_READ(ISR) & flip_pending) goto check_page_flip; + intel_prepare_page_flip(dev, plane); intel_finish_page_flip(dev, pipe); return true; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index fb3e3d4..e2af138 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -13057,11 +13057,7 @@ static void i915_disable_vga(struct drm_device *dev) vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); udelay(300); - /* - * Fujitsu-Siemens Lifebook S6010 (830) has problems resuming - * from S3 without preserving (some of?) the other bits. - */ - I915_WRITE(vga_reg, dev_priv->bios_vgacntr | VGA_DISP_DISABLE); + I915_WRITE(vga_reg, VGA_DISP_DISABLE); POSTING_READ(vga_reg); } @@ -13146,8 +13142,6 @@ void intel_modeset_init(struct drm_device *dev) intel_shared_dpll_init(dev); - /* save the BIOS value before clobbering it */ - dev_priv->bios_vgacntr = I915_READ(i915_vgacntrl_reg(dev)); /* Just disable it once at startup */ i915_disable_vga(dev); intel_setup_outputs(dev); diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c index f5a78d5..ac6da71 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -615,29 +615,6 @@ static void chv_pipe_power_well_disable(struct drm_i915_private *dev_priv, vlv_power_sequencer_reset(dev_priv); } -static void check_power_well_state(struct drm_i915_private *dev_priv, - struct i915_power_well *power_well) -{ - bool enabled = power_well->ops->is_enabled(dev_priv, power_well); - - if (power_well->always_on || !i915.disable_power_well) { - if (!enabled) - goto mismatch; - - return; - } - - if (enabled != (power_well->count > 0)) - goto mismatch; - - return; - -mismatch: - WARN(1, "state mismatch for '%s' (always_on %d hw state %d use-count %d disable_power_well %d\n", - power_well->name, power_well->always_on, enabled, - power_well->count, i915.disable_power_well); -} - /** * intel_display_power_get - grab a power domain reference * @dev_priv: i915 device instance @@ -669,8 +646,6 @@ void intel_display_power_get(struct drm_i915_private *dev_priv, power_well->ops->enable(dev_priv, power_well); power_well->hw_enabled = true; } - - check_power_well_state(dev_priv, power_well); } power_domains->domain_use_count[domain]++; @@ -709,8 +684,6 @@ void intel_display_power_put(struct drm_i915_private *dev_priv, power_well->hw_enabled = false; power_well->ops->disable(dev_priv, power_well); } - - check_power_well_state(dev_priv, power_well); } mutex_unlock(&power_domains->lock); diff --git a/drivers/gpu/drm/nouveau/core/core/event.c b/drivers/gpu/drm/nouveau/core/core/event.c index ff2b434..760947e 100644 --- a/drivers/gpu/drm/nouveau/core/core/event.c +++ b/drivers/gpu/drm/nouveau/core/core/event.c @@ -26,7 +26,7 @@ void nvkm_event_put(struct nvkm_event *event, u32 types, int index) { - BUG_ON(!spin_is_locked(&event->refs_lock)); + assert_spin_locked(&event->refs_lock); while (types) { int type = __ffs(types); types &= ~(1 << type); if (--event->refs[index * event->types_nr + type] == 0) { @@ -39,7 +39,7 @@ nvkm_event_put(struct nvkm_event *event, u32 types, int index) void nvkm_event_get(struct nvkm_event *event, u32 types, int index) { - BUG_ON(!spin_is_locked(&event->refs_lock)); + assert_spin_locked(&event->refs_lock); while (types) { int type = __ffs(types); types &= ~(1 << type); if (++event->refs[index * event->types_nr + type] == 1) { diff --git a/drivers/gpu/drm/nouveau/core/core/notify.c b/drivers/gpu/drm/nouveau/core/core/notify.c index d1bcde5..839a325 100644 --- a/drivers/gpu/drm/nouveau/core/core/notify.c +++ b/drivers/gpu/drm/nouveau/core/core/notify.c @@ -98,7 +98,7 @@ nvkm_notify_send(struct nvkm_notify *notify, void *data, u32 size) struct nvkm_event *event = notify->event; unsigned long flags; - BUG_ON(!spin_is_locked(&event->list_lock)); + assert_spin_locked(&event->list_lock); BUG_ON(size != notify->size); spin_lock_irqsave(&event->refs_lock, flags); diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nve0.c b/drivers/gpu/drm/nouveau/core/engine/device/nve0.c index 674da1f..7329226 100644 --- a/drivers/gpu/drm/nouveau/core/engine/device/nve0.c +++ b/drivers/gpu/drm/nouveau/core/engine/device/nve0.c @@ -249,6 +249,39 @@ nve0_identify(struct nouveau_device *device) device->oclass[NVDEV_ENGINE_PPP ] = &nvc0_ppp_oclass; device->oclass[NVDEV_ENGINE_PERFMON] = &nvf0_perfmon_oclass; break; + case 0x106: + device->cname = "GK208B"; + device->oclass[NVDEV_SUBDEV_VBIOS ] = &nouveau_bios_oclass; + device->oclass[NVDEV_SUBDEV_GPIO ] = nve0_gpio_oclass; + device->oclass[NVDEV_SUBDEV_I2C ] = nve0_i2c_oclass; + device->oclass[NVDEV_SUBDEV_FUSE ] = &gf100_fuse_oclass; + device->oclass[NVDEV_SUBDEV_CLOCK ] = &nve0_clock_oclass; + device->oclass[NVDEV_SUBDEV_THERM ] = &nvd0_therm_oclass; + device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass; + device->oclass[NVDEV_SUBDEV_DEVINIT] = nvc0_devinit_oclass; + device->oclass[NVDEV_SUBDEV_MC ] = gk20a_mc_oclass; + device->oclass[NVDEV_SUBDEV_BUS ] = nvc0_bus_oclass; + device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass; + device->oclass[NVDEV_SUBDEV_FB ] = nve0_fb_oclass; + device->oclass[NVDEV_SUBDEV_LTC ] = gk104_ltc_oclass; + device->oclass[NVDEV_SUBDEV_IBUS ] = &nve0_ibus_oclass; + device->oclass[NVDEV_SUBDEV_INSTMEM] = nv50_instmem_oclass; + device->oclass[NVDEV_SUBDEV_VM ] = &nvc0_vmmgr_oclass; + device->oclass[NVDEV_SUBDEV_BAR ] = &nvc0_bar_oclass; + device->oclass[NVDEV_SUBDEV_PWR ] = nv108_pwr_oclass; + device->oclass[NVDEV_SUBDEV_VOLT ] = &nv40_volt_oclass; + device->oclass[NVDEV_ENGINE_DMAOBJ ] = nvd0_dmaeng_oclass; + device->oclass[NVDEV_ENGINE_FIFO ] = nv108_fifo_oclass; + device->oclass[NVDEV_ENGINE_SW ] = nvc0_software_oclass; + device->oclass[NVDEV_ENGINE_GR ] = nv108_graph_oclass; + device->oclass[NVDEV_ENGINE_DISP ] = nvf0_disp_oclass; + device->oclass[NVDEV_ENGINE_COPY0 ] = &nve0_copy0_oclass; + device->oclass[NVDEV_ENGINE_COPY1 ] = &nve0_copy1_oclass; + device->oclass[NVDEV_ENGINE_COPY2 ] = &nve0_copy2_oclass; + device->oclass[NVDEV_ENGINE_BSP ] = &nve0_bsp_oclass; + device->oclass[NVDEV_ENGINE_VP ] = &nve0_vp_oclass; + device->oclass[NVDEV_ENGINE_PPP ] = &nvc0_ppp_oclass; + break; case 0x108: device->cname = "GK208"; device->oclass[NVDEV_SUBDEV_VBIOS ] = &nouveau_bios_oclass; diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/shadowramin.c b/drivers/gpu/drm/nouveau/core/subdev/bios/shadowramin.c index 5e58bba..a7a890f 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/bios/shadowramin.c +++ b/drivers/gpu/drm/nouveau/core/subdev/bios/shadowramin.c @@ -44,8 +44,10 @@ static void pramin_fini(void *data) { struct priv *priv = data; - nv_wr32(priv->bios, 0x001700, priv->bar0); - kfree(priv); + if (priv) { + nv_wr32(priv->bios, 0x001700, priv->bar0); + kfree(priv); + } } static void * diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c index 00f2ca7..033a8e9 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c @@ -24,34 +24,71 @@ #include "nv50.h" +struct nvaa_ram_priv { + struct nouveau_ram base; + u64 poller_base; +}; + static int nvaa_ram_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nouveau_oclass *oclass, void *data, u32 datasize, struct nouveau_object **pobject) { - const u32 rsvd_head = ( 256 * 1024) >> 12; /* vga memory */ - const u32 rsvd_tail = (1024 * 1024) >> 12; /* vbios etc */ + u32 rsvd_head = ( 256 * 1024); /* vga memory */ + u32 rsvd_tail = (1024 * 1024); /* vbios etc */ struct nouveau_fb *pfb = nouveau_fb(parent); - struct nouveau_ram *ram; + struct nvaa_ram_priv *priv; int ret; - ret = nouveau_ram_create(parent, engine, oclass, &ram); - *pobject = nv_object(ram); + ret = nouveau_ram_create(parent, engine, oclass, &priv); + *pobject = nv_object(priv); if (ret) return ret; - ram->size = nv_rd32(pfb, 0x10020c); - ram->size = (ram->size & 0xffffff00) | ((ram->size & 0x000000ff) << 32); + priv->base.type = NV_MEM_TYPE_STOLEN; + priv->base.stolen = (u64)nv_rd32(pfb, 0x100e10) << 12; + priv->base.size = (u64)nv_rd32(pfb, 0x100e14) << 12; - ret = nouveau_mm_init(&pfb->vram, rsvd_head, (ram->size >> 12) - - (rsvd_head + rsvd_tail), 1); + rsvd_tail += 0x1000; + priv->poller_base = priv->base.size - rsvd_tail; + + ret = nouveau_mm_init(&pfb->vram, rsvd_head >> 12, + (priv->base.size - (rsvd_head + rsvd_tail)) >> 12, + 1); if (ret) return ret; - ram->type = NV_MEM_TYPE_STOLEN; - ram->stolen = (u64)nv_rd32(pfb, 0x100e10) << 12; - ram->get = nv50_ram_get; - ram->put = nv50_ram_put; + priv->base.get = nv50_ram_get; + priv->base.put = nv50_ram_put; + return 0; +} + +static int +nvaa_ram_init(struct nouveau_object *object) +{ + struct nouveau_fb *pfb = nouveau_fb(object); + struct nvaa_ram_priv *priv = (void *)object; + int ret; + u64 dniso, hostnb, flush; + + ret = nouveau_ram_init(&priv->base); + if (ret) + return ret; + + dniso = ((priv->base.size - (priv->poller_base + 0x00)) >> 5) - 1; + hostnb = ((priv->base.size - (priv->poller_base + 0x20)) >> 5) - 1; + flush = ((priv->base.size - (priv->poller_base + 0x40)) >> 5) - 1; + + /* Enable NISO poller for various clients and set their associated + * read address, only for MCP77/78 and MCP79/7A. (fd#25701) + */ + nv_wr32(pfb, 0x100c18, dniso); + nv_mask(pfb, 0x100c14, 0x00000000, 0x00000001); + nv_wr32(pfb, 0x100c1c, hostnb); + nv_mask(pfb, 0x100c14, 0x00000000, 0x00000002); + nv_wr32(pfb, 0x100c24, flush); + nv_mask(pfb, 0x100c14, 0x00000000, 0x00010000); + return 0; } @@ -60,7 +97,7 @@ nvaa_ram_oclass = { .ofuncs = &(struct nouveau_ofuncs) { .ctor = nvaa_ram_ctor, .dtor = _nouveau_ram_dtor, - .init = _nouveau_ram_init, + .init = nvaa_ram_init, .fini = _nouveau_ram_fini, }, }; diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv4c.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv4c.c index a75c35c..165401c 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/mc/nv4c.c +++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv4c.c @@ -24,13 +24,6 @@ #include "nv04.h" -static void -nv4c_mc_msi_rearm(struct nouveau_mc *pmc) -{ - struct nv04_mc_priv *priv = (void *)pmc; - nv_wr08(priv, 0x088050, 0xff); -} - struct nouveau_oclass * nv4c_mc_oclass = &(struct nouveau_mc_oclass) { .base.handle = NV_SUBDEV(MC, 0x4c), @@ -41,5 +34,4 @@ nv4c_mc_oclass = &(struct nouveau_mc_oclass) { .fini = _nouveau_mc_fini, }, .intr = nv04_mc_intr, - .msi_rearm = nv4c_mc_msi_rearm, }.base; diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 21ec561..bba2960 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -1572,8 +1572,10 @@ nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm) * so use the DMA API for them. */ if (!nv_device_is_cpu_coherent(device) && - ttm->caching_state == tt_uncached) + ttm->caching_state == tt_uncached) { ttm_dma_unpopulate(ttm_dma, dev->dev); + return; + } #if __OS_HAS_AGP if (drm->agp.stat == ENABLED) { diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c index 42c34ba..bf0f9e21d 100644 --- a/drivers/gpu/drm/nouveau/nouveau_gem.c +++ b/drivers/gpu/drm/nouveau/nouveau_gem.c @@ -36,7 +36,14 @@ void nouveau_gem_object_del(struct drm_gem_object *gem) { struct nouveau_bo *nvbo = nouveau_gem_object(gem); + struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); struct ttm_buffer_object *bo = &nvbo->bo; + struct device *dev = drm->dev->dev; + int ret; + + ret = pm_runtime_get_sync(dev); + if (WARN_ON(ret < 0 && ret != -EACCES)) + return; if (gem->import_attach) drm_prime_gem_destroy(gem, nvbo->bo.sg); @@ -46,6 +53,9 @@ nouveau_gem_object_del(struct drm_gem_object *gem) /* reset filp so nouveau_bo_del_ttm() can test for it */ gem->filp = NULL; ttm_bo_unref(&bo); + + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); } int @@ -53,7 +63,9 @@ nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv) { struct nouveau_cli *cli = nouveau_cli(file_priv); struct nouveau_bo *nvbo = nouveau_gem_object(gem); + struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); struct nouveau_vma *vma; + struct device *dev = drm->dev->dev; int ret; if (!cli->vm) @@ -71,11 +83,16 @@ nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv) goto out; } + ret = pm_runtime_get_sync(dev); + if (ret < 0 && ret != -EACCES) + goto out; + ret = nouveau_bo_vma_add(nvbo, cli->vm, vma); - if (ret) { + if (ret) kfree(vma); - goto out; - } + + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); } else { vma->refcount++; } @@ -129,6 +146,8 @@ nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv) { struct nouveau_cli *cli = nouveau_cli(file_priv); struct nouveau_bo *nvbo = nouveau_gem_object(gem); + struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev); + struct device *dev = drm->dev->dev; struct nouveau_vma *vma; int ret; @@ -141,8 +160,14 @@ nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv) vma = nouveau_bo_vma_find(nvbo, cli->vm); if (vma) { - if (--vma->refcount == 0) - nouveau_gem_object_unmap(nvbo, vma); + if (--vma->refcount == 0) { + ret = pm_runtime_get_sync(dev); + if (!WARN_ON(ret < 0 && ret != -EACCES)) { + nouveau_gem_object_unmap(nvbo, vma); + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); + } + } } ttm_bo_unreserve(&nvbo->bo); } diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index d59ec49..ed644a4 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -1851,10 +1851,9 @@ static int radeon_atom_pick_pll(struct drm_crtc *crtc) return pll; } /* otherwise, pick one of the plls */ - if ((rdev->family == CHIP_KAVERI) || - (rdev->family == CHIP_KABINI) || + if ((rdev->family == CHIP_KABINI) || (rdev->family == CHIP_MULLINS)) { - /* KB/KV/ML has PPLL1 and PPLL2 */ + /* KB/ML has PPLL1 and PPLL2 */ pll_in_use = radeon_get_pll_use_mask(crtc); if (!(pll_in_use & (1 << ATOM_PPLL2))) return ATOM_PPLL2; @@ -1863,7 +1862,7 @@ static int radeon_atom_pick_pll(struct drm_crtc *crtc) DRM_ERROR("unable to allocate a PPLL\n"); return ATOM_PPLL_INVALID; } else { - /* CI has PPLL0, PPLL1, and PPLL2 */ + /* CI/KV has PPLL0, PPLL1, and PPLL2 */ pll_in_use = radeon_get_pll_use_mask(crtc); if (!(pll_in_use & (1 << ATOM_PPLL2))) return ATOM_PPLL2; @@ -2155,6 +2154,7 @@ static void atombios_crtc_disable(struct drm_crtc *crtc) case ATOM_PPLL0: /* disable the ppll */ if ((rdev->family == CHIP_ARUBA) || + (rdev->family == CHIP_KAVERI) || (rdev->family == CHIP_BONAIRE) || (rdev->family == CHIP_HAWAII)) atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id, diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c index 11ba9d2..db42a67 100644 --- a/drivers/gpu/drm/radeon/atombios_dp.c +++ b/drivers/gpu/drm/radeon/atombios_dp.c @@ -492,6 +492,10 @@ int radeon_dp_mode_valid_helper(struct drm_connector *connector, struct radeon_connector_atom_dig *dig_connector; int dp_clock; + if ((mode->clock > 340000) && + (!radeon_connector_is_dp12_capable(connector))) + return MODE_CLOCK_HIGH; + if (!radeon_connector->con_priv) return MODE_CLOCK_HIGH; dig_connector = radeon_connector->con_priv; diff --git a/drivers/gpu/drm/radeon/cikd.h b/drivers/gpu/drm/radeon/cikd.h index ba85986..03003f8 100644 --- a/drivers/gpu/drm/radeon/cikd.h +++ b/drivers/gpu/drm/radeon/cikd.h @@ -2156,4 +2156,6 @@ #define ATC_VM_APERTURE1_HIGH_ADDR 0x330Cu #define ATC_VM_APERTURE1_LOW_ADDR 0x3304u +#define IH_VMID_0_LUT 0x3D40u + #endif diff --git a/drivers/gpu/drm/radeon/dce3_1_afmt.c b/drivers/gpu/drm/radeon/dce3_1_afmt.c index 2fe8cfc..bafdf92 100644 --- a/drivers/gpu/drm/radeon/dce3_1_afmt.c +++ b/drivers/gpu/drm/radeon/dce3_1_afmt.c @@ -103,7 +103,7 @@ static void dce3_2_afmt_write_sad_regs(struct drm_encoder *encoder) } sad_count = drm_edid_to_sad(radeon_connector->edid, &sads); - if (sad_count < 0) { + if (sad_count <= 0) { DRM_ERROR("Couldn't read SADs: %d\n", sad_count); return; } diff --git a/drivers/gpu/drm/radeon/kv_dpm.c b/drivers/gpu/drm/radeon/kv_dpm.c index 9b42001..e3e9c10 100644 --- a/drivers/gpu/drm/radeon/kv_dpm.c +++ b/drivers/gpu/drm/radeon/kv_dpm.c @@ -2745,13 +2745,11 @@ int kv_dpm_init(struct radeon_device *rdev) pi->enable_auto_thermal_throttling = true; pi->disable_nb_ps3_in_battery = false; if (radeon_bapm == -1) { - /* There are stability issues reported on with - * bapm enabled on an asrock system. - */ - if (rdev->pdev->subsystem_vendor == 0x1849) - pi->bapm_enable = false; - else + /* only enable bapm on KB, ML by default */ + if (rdev->family == CHIP_KABINI || rdev->family == CHIP_MULLINS) pi->bapm_enable = true; + else + pi->bapm_enable = false; } else if (radeon_bapm == 0) { pi->bapm_enable = false; } else { diff --git a/drivers/gpu/drm/radeon/radeon_kfd.c b/drivers/gpu/drm/radeon/radeon_kfd.c index 242fd8b..8bf87f1 100644 --- a/drivers/gpu/drm/radeon/radeon_kfd.c +++ b/drivers/gpu/drm/radeon/radeon_kfd.c @@ -72,7 +72,7 @@ static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id, static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id, uint32_t queue_id, uint32_t __user *wptr); -static bool kgd_hqd_is_occupies(struct kgd_dev *kgd, uint64_t queue_address, +static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address, uint32_t pipe_id, uint32_t queue_id); static int kgd_hqd_destroy(struct kgd_dev *kgd, uint32_t reset_type, @@ -92,7 +92,7 @@ static const struct kfd2kgd_calls kfd2kgd = { .init_memory = kgd_init_memory, .init_pipeline = kgd_init_pipeline, .hqd_load = kgd_hqd_load, - .hqd_is_occupies = kgd_hqd_is_occupies, + .hqd_is_occupied = kgd_hqd_is_occupied, .hqd_destroy = kgd_hqd_destroy, .get_fw_version = get_fw_version }; @@ -101,6 +101,7 @@ static const struct kgd2kfd_calls *kgd2kfd; bool radeon_kfd_init(void) { +#if defined(CONFIG_HSA_AMD_MODULE) bool (*kgd2kfd_init_p)(unsigned, const struct kfd2kgd_calls*, const struct kgd2kfd_calls**); @@ -117,6 +118,17 @@ bool radeon_kfd_init(void) } return true; +#elif defined(CONFIG_HSA_AMD) + if (!kgd2kfd_init(KFD_INTERFACE_VERSION, &kfd2kgd, &kgd2kfd)) { + kgd2kfd = NULL; + + return false; + } + + return true; +#else + return false; +#endif } void radeon_kfd_fini(void) @@ -378,6 +390,10 @@ static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid, cpu_relax(); write_register(kgd, ATC_VMID_PASID_MAPPING_UPDATE_STATUS, 1U << vmid); + /* Mapping vmid to pasid also for IH block */ + write_register(kgd, IH_VMID_0_LUT + vmid * sizeof(uint32_t), + pasid_mapping); + return 0; } @@ -517,7 +533,7 @@ static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id, return 0; } -static bool kgd_hqd_is_occupies(struct kgd_dev *kgd, uint64_t queue_address, +static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address, uint32_t pipe_id, uint32_t queue_id) { uint32_t act; @@ -556,6 +572,7 @@ static int kgd_hqd_destroy(struct kgd_dev *kgd, uint32_t reset_type, if (timeout == 0) { pr_err("kfd: cp queue preemption time out (%dms)\n", temp); + release_queue(kgd); return -ETIME; } msleep(20); diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c index 535403e..15aee72 100644 --- a/drivers/gpu/drm/radeon/radeon_state.c +++ b/drivers/gpu/drm/radeon/radeon_state.c @@ -1703,7 +1703,7 @@ static int radeon_cp_dispatch_texture(struct drm_device * dev, u32 format; u32 *buffer; const u8 __user *data; - int size, dwords, tex_width, blit_width, spitch; + unsigned int size, dwords, tex_width, blit_width, spitch; u32 height; int i; u32 texpitch, microtile; diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 230b6f8..dfdc269 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -27,7 +27,8 @@ if HID config HID_BATTERY_STRENGTH bool "Battery level reporting for HID devices" - depends on HID && POWER_SUPPLY && HID = POWER_SUPPLY + depends on HID + select POWER_SUPPLY default n ---help--- This option adds support of reporting battery strength (for HID devices diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index c3d0ac1..8b63879 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1805,6 +1805,7 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) }, { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) }, { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) }, + { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2) }, { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) }, { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) }, { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) }, diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 7460f34..9243359 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -526,6 +526,7 @@ #define USB_DEVICE_ID_KYE_GPEN_560 0x5003 #define USB_DEVICE_ID_KYE_EASYPEN_I405X 0x5010 #define USB_DEVICE_ID_KYE_MOUSEPEN_I608X 0x5011 +#define USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2 0x501a #define USB_DEVICE_ID_KYE_EASYPEN_M610X 0x5013 #define USB_VENDOR_ID_LABTEC 0x1020 diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index e0a0f06..9505605 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -312,6 +312,9 @@ static const struct hid_device_id hid_battery_quirks[] = { USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI), HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, + USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO), + HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE }, + { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI), HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE }, {} diff --git a/drivers/hid/hid-kye.c b/drivers/hid/hid-kye.c index b92bf01..158fcf5 100644 --- a/drivers/hid/hid-kye.c +++ b/drivers/hid/hid-kye.c @@ -323,6 +323,7 @@ static __u8 *kye_report_fixup(struct hid_device *hdev, __u8 *rdesc, } break; case USB_DEVICE_ID_KYE_MOUSEPEN_I608X: + case USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2: if (*rsize == MOUSEPEN_I608X_RDESC_ORIG_SIZE) { rdesc = mousepen_i608x_rdesc_fixed; *rsize = sizeof(mousepen_i608x_rdesc_fixed); @@ -415,6 +416,7 @@ static int kye_probe(struct hid_device *hdev, const struct hid_device_id *id) switch (id->product) { case USB_DEVICE_ID_KYE_EASYPEN_I405X: case USB_DEVICE_ID_KYE_MOUSEPEN_I608X: + case USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2: case USB_DEVICE_ID_KYE_EASYPEN_M610X: ret = kye_tablet_enable(hdev); if (ret) { @@ -446,6 +448,8 @@ static const struct hid_device_id kye_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) }, { HID_USB_DEVICE(USB_VENDOR_ID_KYE, + USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2) }, + { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) }, { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) }, diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c index c917ab6..5bc6d80 100644 --- a/drivers/hid/hid-logitech-dj.c +++ b/drivers/hid/hid-logitech-dj.c @@ -962,10 +962,24 @@ static int logi_dj_raw_event(struct hid_device *hdev, switch (data[0]) { case REPORT_ID_DJ_SHORT: + if (size != DJREPORT_SHORT_LENGTH) { + dev_err(&hdev->dev, "DJ report of bad size (%d)", size); + return false; + } return logi_dj_dj_event(hdev, report, data, size); case REPORT_ID_HIDPP_SHORT: - /* intentional fallthrough */ + if (size != HIDPP_REPORT_SHORT_LENGTH) { + dev_err(&hdev->dev, + "Short HID++ report of bad size (%d)", size); + return false; + } + return logi_dj_hidpp_event(hdev, report, data, size); case REPORT_ID_HIDPP_LONG: + if (size != HIDPP_REPORT_LONG_LENGTH) { + dev_err(&hdev->dev, + "Long HID++ report of bad size (%d)", size); + return false; + } return logi_dj_hidpp_event(hdev, report, data, size); } diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index 2f420c0..a93cefe 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -282,6 +282,33 @@ static inline bool hidpp_report_is_connect_event(struct hidpp_report *report) (report->rap.sub_id == 0x41); } +/** + * hidpp_prefix_name() prefixes the current given name with "Logitech ". + */ +static void hidpp_prefix_name(char **name, int name_length) +{ +#define PREFIX_LENGTH 9 /* "Logitech " */ + + int new_length; + char *new_name; + + if (name_length > PREFIX_LENGTH && + strncmp(*name, "Logitech ", PREFIX_LENGTH) == 0) + /* The prefix has is already in the name */ + return; + + new_length = PREFIX_LENGTH + name_length; + new_name = kzalloc(new_length, GFP_KERNEL); + if (!new_name) + return; + + snprintf(new_name, new_length, "Logitech %s", *name); + + kfree(*name); + + *name = new_name; +} + /* -------------------------------------------------------------------------- */ /* HIDP++ 1.0 commands */ /* -------------------------------------------------------------------------- */ @@ -321,6 +348,10 @@ static char *hidpp_get_unifying_name(struct hidpp_device *hidpp_dev) return NULL; memcpy(name, &response.rap.params[2], len); + + /* include the terminating '\0' */ + hidpp_prefix_name(&name, len + 1); + return name; } @@ -498,6 +529,9 @@ static char *hidpp_get_device_name(struct hidpp_device *hidpp) index += ret; } + /* include the terminating '\0' */ + hidpp_prefix_name(&name, __name_length + 1); + return name; } @@ -794,18 +828,25 @@ static int wtp_raw_event(struct hid_device *hdev, u8 *data, int size) switch (data[0]) { case 0x02: + if (size < 2) { + hid_err(hdev, "Received HID report of bad size (%d)", + size); + return 1; + } if (hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS) { input_event(wd->input, EV_KEY, BTN_LEFT, !!(data[1] & 0x01)); input_event(wd->input, EV_KEY, BTN_RIGHT, !!(data[1] & 0x02)); input_sync(wd->input); + return 0; } else { if (size < 21) return 1; return wtp_mouse_raw_xy_event(hidpp, &data[7]); } case REPORT_ID_HIDPP_LONG: + /* size is already checked in hidpp_raw_event. */ if ((report->fap.feature_index != wd->mt_feature_index) || (report->fap.funcindex_clientid != EVENT_TOUCHPAD_RAW_XY)) return 1; diff --git a/drivers/hid/hid-roccat-pyra.c b/drivers/hid/hid-roccat-pyra.c index 1a07e07..47d7e74 100644 --- a/drivers/hid/hid-roccat-pyra.c +++ b/drivers/hid/hid-roccat-pyra.c @@ -35,6 +35,8 @@ static struct class *pyra_class; static void profile_activated(struct pyra_device *pyra, unsigned int new_profile) { + if (new_profile >= ARRAY_SIZE(pyra->profile_settings)) + return; pyra->actual_profile = new_profile; pyra->actual_cpi = pyra->profile_settings[pyra->actual_profile].y_cpi; } @@ -257,9 +259,11 @@ static ssize_t pyra_sysfs_write_settings(struct file *fp, if (off != 0 || count != PYRA_SIZE_SETTINGS) return -EINVAL; - mutex_lock(&pyra->pyra_lock); - settings = (struct pyra_settings const *)buf; + if (settings->startup_profile >= ARRAY_SIZE(pyra->profile_settings)) + return -EINVAL; + + mutex_lock(&pyra->pyra_lock); retval = pyra_set_settings(usb_dev, settings); if (retval) { diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c index d32037c..d43e967 100644 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid.c @@ -706,12 +706,7 @@ static int i2c_hid_start(struct hid_device *hid) static void i2c_hid_stop(struct hid_device *hid) { - struct i2c_client *client = hid->driver_data; - struct i2c_hid *ihid = i2c_get_clientdata(client); - hid->claimed = 0; - - i2c_hid_free_buffers(ihid); } static int i2c_hid_open(struct hid_device *hid) diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c index dc89be9..b27b3d3 100644 --- a/drivers/hid/usbhid/hid-quirks.c +++ b/drivers/hid/usbhid/hid-quirks.c @@ -124,6 +124,7 @@ static const struct hid_blacklist { { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS, HID_QUIRK_MULTI_INPUT }, { USB_VENDOR_ID_SIGMA_MICRO, USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD, HID_QUIRK_NO_INIT_REPORTS }, { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X, HID_QUIRK_MULTI_INPUT }, + { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2, HID_QUIRK_MULTI_INPUT }, { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X, HID_QUIRK_MULTI_INPUT }, { USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_DUOSENSE, HID_QUIRK_NO_INIT_REPORTS }, { USB_VENDOR_ID_SEMICO, USB_DEVICE_ID_SEMICO_USB_KEYKOARD, HID_QUIRK_NO_INIT_REPORTS }, diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 1232336..40dfbc0 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -4029,14 +4029,6 @@ static int device_notifier(struct notifier_block *nb, if (action != BUS_NOTIFY_REMOVED_DEVICE) return 0; - /* - * If the device is still attached to a device driver we can't - * tear down the domain yet as DMA mappings may still be in use. - * Wait for the BUS_NOTIFY_UNBOUND_DRIVER event to do that. - */ - if (action == BUS_NOTIFY_DEL_DEVICE && dev->driver != NULL) - return 0; - domain = find_domain(dev); if (!domain) return 0; @@ -4428,6 +4420,10 @@ static int intel_iommu_attach_device(struct iommu_domain *domain, domain_remove_one_dev_info(old_domain, dev); else domain_remove_dev_info(old_domain); + + if (!domain_type_is_vm_or_si(old_domain) && + list_empty(&old_domain->devices)) + domain_exit(old_domain); } } diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c index 68dfb0f..7486931 100644 --- a/drivers/iommu/ipmmu-vmsa.c +++ b/drivers/iommu/ipmmu-vmsa.c @@ -558,7 +558,7 @@ static pmd_t *ipmmu_alloc_pmd(struct ipmmu_vmsa_device *mmu, pgd_t *pgd, static u64 ipmmu_page_prot(unsigned int prot, u64 type) { - u64 pgprot = ARM_VMSA_PTE_XN | ARM_VMSA_PTE_nG | ARM_VMSA_PTE_AF + u64 pgprot = ARM_VMSA_PTE_nG | ARM_VMSA_PTE_AF | ARM_VMSA_PTE_SH_IS | ARM_VMSA_PTE_AP_UNPRIV | ARM_VMSA_PTE_NS | type; @@ -568,8 +568,8 @@ static u64 ipmmu_page_prot(unsigned int prot, u64 type) if (prot & IOMMU_CACHE) pgprot |= IMMAIR_ATTR_IDX_WBRWA << ARM_VMSA_PTE_ATTRINDX_SHIFT; - if (prot & IOMMU_EXEC) - pgprot &= ~ARM_VMSA_PTE_XN; + if (prot & IOMMU_NOEXEC) + pgprot |= ARM_VMSA_PTE_XN; else if (!(prot & (IOMMU_READ | IOMMU_WRITE))) /* If no access create a faulting entry to avoid TLB fills. */ pgprot &= ~ARM_VMSA_PTE_PAGE; diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c index b2023af..6a8b1ec 100644 --- a/drivers/iommu/rockchip-iommu.c +++ b/drivers/iommu/rockchip-iommu.c @@ -1009,7 +1009,6 @@ static struct platform_driver rk_iommu_driver = { .remove = rk_iommu_remove, .driver = { .name = "rk_iommu", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(rk_iommu_dt_ids), }, }; diff --git a/drivers/isdn/hardware/eicon/message.c b/drivers/isdn/hardware/eicon/message.c index a82e542..0b38060 100644 --- a/drivers/isdn/hardware/eicon/message.c +++ b/drivers/isdn/hardware/eicon/message.c @@ -4880,7 +4880,7 @@ static void sig_ind(PLCI *plci) byte SS_Ind[] = "\x05\x02\x00\x02\x00\x00"; /* Hold_Ind struct*/ byte CF_Ind[] = "\x09\x02\x00\x06\x00\x00\x00\x00\x00\x00"; byte Interr_Err_Ind[] = "\x0a\x02\x00\x07\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"; - byte CONF_Ind[] = "\x09\x16\x00\x06\x00\x00\0x00\0x00\0x00\0x00"; + byte CONF_Ind[] = "\x09\x16\x00\x06\x00\x00\x00\x00\x00\x00"; byte force_mt_info = false; byte dir; dword d; diff --git a/drivers/leds/leds-netxbig.c b/drivers/leds/leds-netxbig.c index 26515c2..25e4197 100644 --- a/drivers/leds/leds-netxbig.c +++ b/drivers/leds/leds-netxbig.c @@ -330,18 +330,18 @@ create_netxbig_led(struct platform_device *pdev, led_dat->sata = 0; led_dat->cdev.brightness = LED_OFF; led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME; - /* - * If available, expose the SATA activity blink capability through - * a "sata" sysfs attribute. - */ - if (led_dat->mode_val[NETXBIG_LED_SATA] != NETXBIG_LED_INVALID_MODE) - led_dat->cdev.groups = netxbig_led_groups; led_dat->mode_addr = template->mode_addr; led_dat->mode_val = template->mode_val; led_dat->bright_addr = template->bright_addr; led_dat->bright_max = (1 << pdata->gpio_ext->num_data) - 1; led_dat->timer = pdata->timer; led_dat->num_timer = pdata->num_timer; + /* + * If available, expose the SATA activity blink capability through + * a "sata" sysfs attribute. + */ + if (led_dat->mode_val[NETXBIG_LED_SATA] != NETXBIG_LED_INVALID_MODE) + led_dat->cdev.groups = netxbig_led_groups; return led_classdev_register(&pdev->dev, &led_dat->cdev); } diff --git a/drivers/misc/cxl/context.c b/drivers/misc/cxl/context.c index 51fd6b5..d1b55fe 100644 --- a/drivers/misc/cxl/context.c +++ b/drivers/misc/cxl/context.c @@ -100,6 +100,46 @@ int cxl_context_init(struct cxl_context *ctx, struct cxl_afu *afu, bool master, return 0; } +static int cxl_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) +{ + struct cxl_context *ctx = vma->vm_file->private_data; + unsigned long address = (unsigned long)vmf->virtual_address; + u64 area, offset; + + offset = vmf->pgoff << PAGE_SHIFT; + + pr_devel("%s: pe: %i address: 0x%lx offset: 0x%llx\n", + __func__, ctx->pe, address, offset); + + if (ctx->afu->current_mode == CXL_MODE_DEDICATED) { + area = ctx->afu->psn_phys; + if (offset > ctx->afu->adapter->ps_size) + return VM_FAULT_SIGBUS; + } else { + area = ctx->psn_phys; + if (offset > ctx->psn_size) + return VM_FAULT_SIGBUS; + } + + mutex_lock(&ctx->status_mutex); + + if (ctx->status != STARTED) { + mutex_unlock(&ctx->status_mutex); + pr_devel("%s: Context not started, failing problem state access\n", __func__); + return VM_FAULT_SIGBUS; + } + + vm_insert_pfn(vma, address, (area + offset) >> PAGE_SHIFT); + + mutex_unlock(&ctx->status_mutex); + + return VM_FAULT_NOPAGE; +} + +static const struct vm_operations_struct cxl_mmap_vmops = { + .fault = cxl_mmap_fault, +}; + /* * Map a per-context mmio space into the given vma. */ @@ -108,26 +148,25 @@ int cxl_context_iomap(struct cxl_context *ctx, struct vm_area_struct *vma) u64 len = vma->vm_end - vma->vm_start; len = min(len, ctx->psn_size); - if (ctx->afu->current_mode == CXL_MODE_DEDICATED) { - vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); - return vm_iomap_memory(vma, ctx->afu->psn_phys, ctx->afu->adapter->ps_size); - } + if (ctx->afu->current_mode != CXL_MODE_DEDICATED) { + /* make sure there is a valid per process space for this AFU */ + if ((ctx->master && !ctx->afu->psa) || (!ctx->afu->pp_psa)) { + pr_devel("AFU doesn't support mmio space\n"); + return -EINVAL; + } - /* make sure there is a valid per process space for this AFU */ - if ((ctx->master && !ctx->afu->psa) || (!ctx->afu->pp_psa)) { - pr_devel("AFU doesn't support mmio space\n"); - return -EINVAL; + /* Can't mmap until the AFU is enabled */ + if (!ctx->afu->enabled) + return -EBUSY; } - /* Can't mmap until the AFU is enabled */ - if (!ctx->afu->enabled) - return -EBUSY; - pr_devel("%s: mmio physical: %llx pe: %i master:%i\n", __func__, ctx->psn_phys, ctx->pe , ctx->master); + vma->vm_flags |= VM_IO | VM_PFNMAP; vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); - return vm_iomap_memory(vma, ctx->psn_phys, len); + vma->vm_ops = &cxl_mmap_vmops; + return 0; } /* @@ -150,12 +189,6 @@ static void __detach_context(struct cxl_context *ctx) afu_release_irqs(ctx); flush_work(&ctx->fault_work); /* Only needed for dedicated process */ wake_up_all(&ctx->wq); - - /* Release Problem State Area mapping */ - mutex_lock(&ctx->mapping_lock); - if (ctx->mapping) - unmap_mapping_range(ctx->mapping, 0, 0, 1); - mutex_unlock(&ctx->mapping_lock); } /* @@ -184,6 +217,17 @@ void cxl_context_detach_all(struct cxl_afu *afu) * created and torn down after the IDR removed */ __detach_context(ctx); + + /* + * We are force detaching - remove any active PSA mappings so + * userspace cannot interfere with the card if it comes back. + * Easiest way to exercise this is to unbind and rebind the + * driver via sysfs while it is in use. + */ + mutex_lock(&ctx->mapping_lock); + if (ctx->mapping) + unmap_mapping_range(ctx->mapping, 0, 0, 1); + mutex_unlock(&ctx->mapping_lock); } mutex_unlock(&afu->contexts_lock); } diff --git a/drivers/misc/cxl/file.c b/drivers/misc/cxl/file.c index e9f2f10..b15d811 100644 --- a/drivers/misc/cxl/file.c +++ b/drivers/misc/cxl/file.c @@ -140,18 +140,20 @@ static long afu_ioctl_start_work(struct cxl_context *ctx, pr_devel("%s: pe: %i\n", __func__, ctx->pe); - mutex_lock(&ctx->status_mutex); - if (ctx->status != OPENED) { - rc = -EIO; - goto out; - } - + /* Do this outside the status_mutex to avoid a circular dependency with + * the locking in cxl_mmap_fault() */ if (copy_from_user(&work, uwork, sizeof(struct cxl_ioctl_start_work))) { rc = -EFAULT; goto out; } + mutex_lock(&ctx->status_mutex); + if (ctx->status != OPENED) { + rc = -EIO; + goto out; + } + /* * if any of the reserved fields are set or any of the unused * flags are set it's invalid diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c index e3e56d3..970314e 100644 --- a/drivers/mmc/host/sdhci-acpi.c +++ b/drivers/mmc/host/sdhci-acpi.c @@ -247,6 +247,7 @@ static const struct sdhci_acpi_uid_slot sdhci_acpi_uids[] = { { "INT33BB" , "3" , &sdhci_acpi_slot_int_sd }, { "INT33C6" , NULL, &sdhci_acpi_slot_int_sdio }, { "INT3436" , NULL, &sdhci_acpi_slot_int_sdio }, + { "INT344D" , NULL, &sdhci_acpi_slot_int_sdio }, { "PNP0D40" }, { }, }; @@ -257,6 +258,7 @@ static const struct acpi_device_id sdhci_acpi_ids[] = { { "INT33BB" }, { "INT33C6" }, { "INT3436" }, + { "INT344D" }, { "PNP0D40" }, { }, }; diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index 0342775..4f38554 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -993,6 +993,31 @@ static const struct pci_device_id pci_ids[] = { .subdevice = PCI_ANY_ID, .driver_data = (kernel_ulong_t)&sdhci_intel_mrfl_mmc, }, + + { + .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_INTEL_SPT_EMMC, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc, + }, + + { + .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_INTEL_SPT_SDIO, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio, + }, + + { + .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_INTEL_SPT_SD, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd, + }, + { .vendor = PCI_VENDOR_ID_O2, .device = PCI_DEVICE_ID_O2_8120, diff --git a/drivers/mmc/host/sdhci-pci.h b/drivers/mmc/host/sdhci-pci.h index d57c3d1..1ec684d 100644 --- a/drivers/mmc/host/sdhci-pci.h +++ b/drivers/mmc/host/sdhci-pci.h @@ -21,6 +21,9 @@ #define PCI_DEVICE_ID_INTEL_CLV_EMMC0 0x08e5 #define PCI_DEVICE_ID_INTEL_CLV_EMMC1 0x08e6 #define PCI_DEVICE_ID_INTEL_QRK_SD 0x08A7 +#define PCI_DEVICE_ID_INTEL_SPT_EMMC 0x9d2b +#define PCI_DEVICE_ID_INTEL_SPT_SDIO 0x9d2c +#define PCI_DEVICE_ID_INTEL_SPT_SD 0x9d2d /* * PCI registers diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c index 4523887..ca3424e 100644 --- a/drivers/mmc/host/sdhci-pxav3.c +++ b/drivers/mmc/host/sdhci-pxav3.c @@ -300,13 +300,6 @@ static int sdhci_pxav3_probe(struct platform_device *pdev) if (IS_ERR(host)) return PTR_ERR(host); - if (of_device_is_compatible(np, "marvell,armada-380-sdhci")) { - ret = mv_conf_mbus_windows(pdev, mv_mbus_dram_info()); - if (ret < 0) - goto err_mbus_win; - } - - pltfm_host = sdhci_priv(host); pltfm_host->priv = pxa; @@ -325,6 +318,12 @@ static int sdhci_pxav3_probe(struct platform_device *pdev) if (!IS_ERR(pxa->clk_core)) clk_prepare_enable(pxa->clk_core); + if (of_device_is_compatible(np, "marvell,armada-380-sdhci")) { + ret = mv_conf_mbus_windows(pdev, mv_mbus_dram_info()); + if (ret < 0) + goto err_mbus_win; + } + /* enable 1/8V DDR capable */ host->mmc->caps |= MMC_CAP_1_8V_DDR; @@ -396,11 +395,11 @@ err_add_host: pm_runtime_disable(&pdev->dev); err_of_parse: err_cd_req: +err_mbus_win: clk_disable_unprepare(pxa->clk_io); if (!IS_ERR(pxa->clk_core)) clk_disable_unprepare(pxa->clk_core); err_clk_get: -err_mbus_win: sdhci_pltfm_free(pdev); return ret; } diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index cbb245b..f1a488e 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -259,8 +259,6 @@ static void sdhci_reinit(struct sdhci_host *host) del_timer_sync(&host->tuning_timer); host->flags &= ~SDHCI_NEEDS_RETUNING; - host->mmc->max_blk_count = - (host->quirks & SDHCI_QUIRK_NO_MULTIBLOCK) ? 1 : 65535; } sdhci_enable_card_detection(host); } @@ -1273,6 +1271,12 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned char mode, spin_unlock_irq(&host->lock); mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd); spin_lock_irq(&host->lock); + + if (mode != MMC_POWER_OFF) + sdhci_writeb(host, SDHCI_POWER_ON, SDHCI_POWER_CONTROL); + else + sdhci_writeb(host, 0, SDHCI_POWER_CONTROL); + return; } @@ -1353,6 +1357,8 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq) sdhci_runtime_pm_get(host); + present = mmc_gpio_get_cd(host->mmc); + spin_lock_irqsave(&host->lock, flags); WARN_ON(host->mrq != NULL); @@ -1381,7 +1387,6 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq) * zero: cd-gpio is used, and card is removed * one: cd-gpio is used, and card is present */ - present = mmc_gpio_get_cd(host->mmc); if (present < 0) { /* If polling, assume that the card is always present. */ if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) @@ -1880,6 +1885,18 @@ static int sdhci_card_busy(struct mmc_host *mmc) return !(present_state & SDHCI_DATA_LVL_MASK); } +static int sdhci_prepare_hs400_tuning(struct mmc_host *mmc, struct mmc_ios *ios) +{ + struct sdhci_host *host = mmc_priv(mmc); + unsigned long flags; + + spin_lock_irqsave(&host->lock, flags); + host->flags |= SDHCI_HS400_TUNING; + spin_unlock_irqrestore(&host->lock, flags); + + return 0; +} + static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode) { struct sdhci_host *host = mmc_priv(mmc); @@ -1887,10 +1904,18 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode) int tuning_loop_counter = MAX_TUNING_LOOP; int err = 0; unsigned long flags; + unsigned int tuning_count = 0; + bool hs400_tuning; sdhci_runtime_pm_get(host); spin_lock_irqsave(&host->lock, flags); + hs400_tuning = host->flags & SDHCI_HS400_TUNING; + host->flags &= ~SDHCI_HS400_TUNING; + + if (host->tuning_mode == SDHCI_TUNING_MODE_1) + tuning_count = host->tuning_count; + /* * The Host Controller needs tuning only in case of SDR104 mode * and for SDR50 mode when Use Tuning for SDR50 is set in the @@ -1899,8 +1924,20 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode) * tuning function has to be executed. */ switch (host->timing) { + /* HS400 tuning is done in HS200 mode */ case MMC_TIMING_MMC_HS400: + err = -EINVAL; + goto out_unlock; + case MMC_TIMING_MMC_HS200: + /* + * Periodic re-tuning for HS400 is not expected to be needed, so + * disable it here. + */ + if (hs400_tuning) + tuning_count = 0; + break; + case MMC_TIMING_UHS_SDR104: break; @@ -1911,9 +1948,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode) /* FALLTHROUGH */ default: - spin_unlock_irqrestore(&host->lock, flags); - sdhci_runtime_pm_put(host); - return 0; + goto out_unlock; } if (host->ops->platform_execute_tuning) { @@ -2037,24 +2072,11 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode) } out: - /* - * If this is the very first time we are here, we start the retuning - * timer. Since only during the first time, SDHCI_NEEDS_RETUNING - * flag won't be set, we check this condition before actually starting - * the timer. - */ - if (!(host->flags & SDHCI_NEEDS_RETUNING) && host->tuning_count && - (host->tuning_mode == SDHCI_TUNING_MODE_1)) { + host->flags &= ~SDHCI_NEEDS_RETUNING; + + if (tuning_count) { host->flags |= SDHCI_USING_RETUNING_TIMER; - mod_timer(&host->tuning_timer, jiffies + - host->tuning_count * HZ); - /* Tuning mode 1 limits the maximum data length to 4MB */ - mmc->max_blk_count = (4 * 1024 * 1024) / mmc->max_blk_size; - } else if (host->flags & SDHCI_USING_RETUNING_TIMER) { - host->flags &= ~SDHCI_NEEDS_RETUNING; - /* Reload the new initial value for timer */ - mod_timer(&host->tuning_timer, jiffies + - host->tuning_count * HZ); + mod_timer(&host->tuning_timer, jiffies + tuning_count * HZ); } /* @@ -2070,6 +2092,7 @@ out: sdhci_writel(host, host->ier, SDHCI_INT_ENABLE); sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE); +out_unlock: spin_unlock_irqrestore(&host->lock, flags); sdhci_runtime_pm_put(host); @@ -2110,15 +2133,18 @@ static void sdhci_card_event(struct mmc_host *mmc) { struct sdhci_host *host = mmc_priv(mmc); unsigned long flags; + int present; /* First check if client has provided their own card event */ if (host->ops->card_event) host->ops->card_event(host); + present = sdhci_do_get_cd(host); + spin_lock_irqsave(&host->lock, flags); /* Check host->mrq first in case we are runtime suspended */ - if (host->mrq && !sdhci_do_get_cd(host)) { + if (host->mrq && !present) { pr_err("%s: Card removed during transfer!\n", mmc_hostname(host->mmc)); pr_err("%s: Resetting controller.\n", @@ -2142,6 +2168,7 @@ static const struct mmc_host_ops sdhci_ops = { .hw_reset = sdhci_hw_reset, .enable_sdio_irq = sdhci_enable_sdio_irq, .start_signal_voltage_switch = sdhci_start_signal_voltage_switch, + .prepare_hs400_tuning = sdhci_prepare_hs400_tuning, .execute_tuning = sdhci_execute_tuning, .card_event = sdhci_card_event, .card_busy = sdhci_card_busy, @@ -3260,8 +3287,9 @@ int sdhci_add_host(struct sdhci_host *host) mmc->max_segs = SDHCI_MAX_SEGS; /* - * Maximum number of sectors in one transfer. Limited by DMA boundary - * size (512KiB). + * Maximum number of sectors in one transfer. Limited by SDMA boundary + * size (512KiB). Note some tuning modes impose a 4MiB limit, but this + * is less anyway. */ mmc->max_req_size = 524288; diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c b/drivers/net/ethernet/allwinner/sun4i-emac.c index 1fcd556..f3470d9 100644 --- a/drivers/net/ethernet/allwinner/sun4i-emac.c +++ b/drivers/net/ethernet/allwinner/sun4i-emac.c @@ -850,8 +850,10 @@ static int emac_probe(struct platform_device *pdev) } db->clk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(db->clk)) + if (IS_ERR(db->clk)) { + ret = PTR_ERR(db->clk); goto out; + } clk_prepare_enable(db->clk); diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c index 3498760..760c72c 100644 --- a/drivers/net/ethernet/altera/altera_tse_main.c +++ b/drivers/net/ethernet/altera/altera_tse_main.c @@ -1170,10 +1170,6 @@ tx_request_irq_error: init_error: free_skbufs(dev); alloc_skbuf_error: - if (priv->phydev) { - phy_disconnect(priv->phydev); - priv->phydev = NULL; - } phy_error: return ret; } @@ -1186,12 +1182,9 @@ static int tse_shutdown(struct net_device *dev) int ret; unsigned long int flags; - /* Stop and disconnect the PHY */ - if (priv->phydev) { + /* Stop the PHY */ + if (priv->phydev) phy_stop(priv->phydev); - phy_disconnect(priv->phydev); - priv->phydev = NULL; - } netif_stop_queue(dev); napi_disable(&priv->napi); @@ -1525,6 +1518,10 @@ err_free_netdev: static int altera_tse_remove(struct platform_device *pdev) { struct net_device *ndev = platform_get_drvdata(pdev); + struct altera_tse_private *priv = netdev_priv(ndev); + + if (priv->phydev) + phy_disconnect(priv->phydev); platform_set_drvdata(pdev, NULL); altera_tse_mdio_destroy(ndev); diff --git a/drivers/net/ethernet/atheros/alx/main.c b/drivers/net/ethernet/atheros/alx/main.c index e398eda..c8af3ce 100644 --- a/drivers/net/ethernet/atheros/alx/main.c +++ b/drivers/net/ethernet/atheros/alx/main.c @@ -184,15 +184,16 @@ static void alx_schedule_reset(struct alx_priv *alx) schedule_work(&alx->reset_wk); } -static bool alx_clean_rx_irq(struct alx_priv *alx, int budget) +static int alx_clean_rx_irq(struct alx_priv *alx, int budget) { struct alx_rx_queue *rxq = &alx->rxq; struct alx_rrd *rrd; struct alx_buffer *rxb; struct sk_buff *skb; u16 length, rfd_cleaned = 0; + int work = 0; - while (budget > 0) { + while (work < budget) { rrd = &rxq->rrd[rxq->rrd_read_idx]; if (!(rrd->word3 & cpu_to_le32(1 << RRD_UPDATED_SHIFT))) break; @@ -203,7 +204,7 @@ static bool alx_clean_rx_irq(struct alx_priv *alx, int budget) ALX_GET_FIELD(le32_to_cpu(rrd->word0), RRD_NOR) != 1) { alx_schedule_reset(alx); - return 0; + return work; } rxb = &rxq->bufs[rxq->read_idx]; @@ -243,7 +244,7 @@ static bool alx_clean_rx_irq(struct alx_priv *alx, int budget) } napi_gro_receive(&alx->napi, skb); - budget--; + work++; next_pkt: if (++rxq->read_idx == alx->rx_ringsz) @@ -258,21 +259,22 @@ next_pkt: if (rfd_cleaned) alx_refill_rx_ring(alx, GFP_ATOMIC); - return budget > 0; + return work; } static int alx_poll(struct napi_struct *napi, int budget) { struct alx_priv *alx = container_of(napi, struct alx_priv, napi); struct alx_hw *hw = &alx->hw; - bool complete = true; unsigned long flags; + bool tx_complete; + int work; - complete = alx_clean_tx_irq(alx) && - alx_clean_rx_irq(alx, budget); + tx_complete = alx_clean_tx_irq(alx); + work = alx_clean_rx_irq(alx, budget); - if (!complete) - return 1; + if (!tx_complete || work == budget) + return budget; napi_complete(&alx->napi); @@ -284,7 +286,7 @@ static int alx_poll(struct napi_struct *napi, int budget) alx_post_write(hw); - return 0; + return work; } static irqreturn_t alx_intr_handle(struct alx_priv *alx, u32 intr) diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 553dcd8..96bf01b 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -7413,6 +7413,8 @@ static inline void tg3_netif_start(struct tg3 *tp) } static void tg3_irq_quiesce(struct tg3 *tp) + __releases(tp->lock) + __acquires(tp->lock) { int i; @@ -7421,8 +7423,12 @@ static void tg3_irq_quiesce(struct tg3 *tp) tp->irq_sync = 1; smp_mb(); + spin_unlock_bh(&tp->lock); + for (i = 0; i < tp->irq_cnt; i++) synchronize_irq(tp->napi[i].irq_vec); + + spin_lock_bh(&tp->lock); } /* Fully shutdown all tg3 driver activity elsewhere in the system. @@ -9018,6 +9024,8 @@ static void tg3_restore_clk(struct tg3 *tp) /* tp->lock is held. */ static int tg3_chip_reset(struct tg3 *tp) + __releases(tp->lock) + __acquires(tp->lock) { u32 val; void (*write_op)(struct tg3 *, u32, u32); @@ -9073,9 +9081,13 @@ static int tg3_chip_reset(struct tg3 *tp) } smp_mb(); + tg3_full_unlock(tp); + for (i = 0; i < tp->irq_cnt; i++) synchronize_irq(tp->napi[i].irq_vec); + tg3_full_lock(tp, 0); + if (tg3_asic_rev(tp) == ASIC_REV_57780) { val = tr32(TG3_PCIE_LNKCTL) & ~TG3_PCIE_LNKCTL_L1_PLL_PD_EN; tw32(TG3_PCIE_LNKCTL, val | TG3_PCIE_LNKCTL_L1_PLL_PD_DIS); @@ -10903,11 +10915,13 @@ static void tg3_timer(unsigned long __opaque) { struct tg3 *tp = (struct tg3 *) __opaque; - if (tp->irq_sync || tg3_flag(tp, RESET_TASK_PENDING)) - goto restart_timer; - spin_lock(&tp->lock); + if (tp->irq_sync || tg3_flag(tp, RESET_TASK_PENDING)) { + spin_unlock(&tp->lock); + goto restart_timer; + } + if (tg3_asic_rev(tp) == ASIC_REV_5717 || tg3_flag(tp, 57765_CLASS)) tg3_chk_missed_msi(tp); @@ -11101,11 +11115,13 @@ static void tg3_reset_task(struct work_struct *work) struct tg3 *tp = container_of(work, struct tg3, reset_task); int err; + rtnl_lock(); tg3_full_lock(tp, 0); if (!netif_running(tp->dev)) { tg3_flag_clear(tp, RESET_TASK_PENDING); tg3_full_unlock(tp); + rtnl_unlock(); return; } @@ -11138,6 +11154,7 @@ out: tg3_phy_start(tp); tg3_flag_clear(tp, RESET_TASK_PENDING); + rtnl_unlock(); } static int tg3_request_irq(struct tg3 *tp, int irq_num) diff --git a/drivers/net/ethernet/cadence/at91_ether.c b/drivers/net/ethernet/cadence/at91_ether.c index 55eb7f2..7ef55f5 100644 --- a/drivers/net/ethernet/cadence/at91_ether.c +++ b/drivers/net/ethernet/cadence/at91_ether.c @@ -340,7 +340,7 @@ static int __init at91ether_probe(struct platform_device *pdev) res = PTR_ERR(lp->pclk); goto err_free_dev; } - clk_enable(lp->pclk); + clk_prepare_enable(lp->pclk); lp->hclk = ERR_PTR(-ENOENT); lp->tx_clk = ERR_PTR(-ENOENT); @@ -406,7 +406,7 @@ static int __init at91ether_probe(struct platform_device *pdev) err_out_unregister_netdev: unregister_netdev(dev); err_disable_clock: - clk_disable(lp->pclk); + clk_disable_unprepare(lp->pclk); err_free_dev: free_netdev(dev); return res; @@ -424,7 +424,7 @@ static int at91ether_remove(struct platform_device *pdev) kfree(lp->mii_bus->irq); mdiobus_free(lp->mii_bus); unregister_netdev(dev); - clk_disable(lp->pclk); + clk_disable_unprepare(lp->pclk); free_netdev(dev); return 0; @@ -440,7 +440,7 @@ static int at91ether_suspend(struct platform_device *pdev, pm_message_t mesg) netif_stop_queue(net_dev); netif_device_detach(net_dev); - clk_disable(lp->pclk); + clk_disable_unprepare(lp->pclk); } return 0; } @@ -451,7 +451,7 @@ static int at91ether_resume(struct platform_device *pdev) struct macb *lp = netdev_priv(net_dev); if (netif_running(net_dev)) { - clk_enable(lp->pclk); + clk_prepare_enable(lp->pclk); netif_device_attach(net_dev); netif_start_queue(net_dev); diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c index 2215d43..a936ee8 100644 --- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c @@ -2430,7 +2430,7 @@ static void cfg_queues(struct adapter *adapter) */ n10g = 0; for_each_port(adapter, pidx) - n10g += is_10g_port(&adap2pinfo(adapter, pidx)->link_cfg); + n10g += is_x_10g_port(&adap2pinfo(adapter, pidx)->link_cfg); /* * We default to 1 queue per non-10G port and up to # of cores queues diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c b/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c index 21dc9a2..60426cf 100644 --- a/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c @@ -323,6 +323,8 @@ int t4vf_port_init(struct adapter *adapter, int pidx) return v; v = be32_to_cpu(port_rpl.u.info.lstatus_to_modtype); + pi->mdio_addr = (v & FW_PORT_CMD_MDIOCAP_F) ? + FW_PORT_CMD_MDIOADDR_G(v) : -1; pi->port_type = FW_PORT_CMD_PTYPE_G(v); pi->mod_type = FW_PORT_MOD_TYPE_NA; diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c index 705f334..b29e027 100644 --- a/drivers/net/ethernet/cisco/enic/enic_main.c +++ b/drivers/net/ethernet/cisco/enic/enic_main.c @@ -1616,7 +1616,7 @@ static int enic_open(struct net_device *netdev) if (vnic_rq_desc_used(&enic->rq[i]) == 0) { netdev_err(netdev, "Unable to alloc receive buffers\n"); err = -ENOMEM; - goto err_out_notify_unset; + goto err_out_free_rq; } } @@ -1649,7 +1649,9 @@ static int enic_open(struct net_device *netdev) return 0; -err_out_notify_unset: +err_out_free_rq: + for (i = 0; i < enic->rq_count; i++) + vnic_rq_clean(&enic->rq[i], enic_free_rq_buf); enic_dev_notify_unset(enic); err_out_free_intr: enic_free_intr(enic); diff --git a/drivers/net/ethernet/dnet.c b/drivers/net/ethernet/dnet.c index a379c3e..13d00a3 100644 --- a/drivers/net/ethernet/dnet.c +++ b/drivers/net/ethernet/dnet.c @@ -398,13 +398,8 @@ static int dnet_poll(struct napi_struct *napi, int budget) * break out of while loop if there are no more * packets waiting */ - if (!(dnet_readl(bp, RX_FIFO_WCNT) >> 16)) { - napi_complete(napi); - int_enable = dnet_readl(bp, INTR_ENB); - int_enable |= DNET_INTR_SRC_RX_CMDFIFOAF; - dnet_writel(bp, int_enable, INTR_ENB); - return 0; - } + if (!(dnet_readl(bp, RX_FIFO_WCNT) >> 16)) + break; cmd_word = dnet_readl(bp, RX_LEN_FIFO); pkt_len = cmd_word & 0xFFFF; @@ -433,20 +428,17 @@ static int dnet_poll(struct napi_struct *napi, int budget) "size %u.\n", dev->name, pkt_len); } - budget -= npackets; - if (npackets < budget) { /* We processed all packets available. Tell NAPI it can - * stop polling then re-enable rx interrupts */ + * stop polling then re-enable rx interrupts. + */ napi_complete(napi); int_enable = dnet_readl(bp, INTR_ENB); int_enable |= DNET_INTR_SRC_RX_CMDFIFOAF; dnet_writel(bp, int_enable, INTR_ENB); - return 0; } - /* There are still packets waiting */ - return 1; + return npackets; } static irqreturn_t dnet_interrupt(int irq, void *dev_id) diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h index 469691a..4013292 100644 --- a/drivers/net/ethernet/freescale/fec.h +++ b/drivers/net/ethernet/freescale/fec.h @@ -424,6 +424,8 @@ struct bufdesc_ex { * (40ns * 6). */ #define FEC_QUIRK_BUG_CAPTURE (1 << 10) +/* Controller has only one MDIO bus */ +#define FEC_QUIRK_SINGLE_MDIO (1 << 11) struct fec_enet_priv_tx_q { int index; diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 5ebdf8d..bba8777 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -91,7 +91,8 @@ static struct platform_device_id fec_devtype[] = { .driver_data = 0, }, { .name = "imx28-fec", - .driver_data = FEC_QUIRK_ENET_MAC | FEC_QUIRK_SWAP_FRAME, + .driver_data = FEC_QUIRK_ENET_MAC | FEC_QUIRK_SWAP_FRAME | + FEC_QUIRK_SINGLE_MDIO, }, { .name = "imx6q-fec", .driver_data = FEC_QUIRK_ENET_MAC | FEC_QUIRK_HAS_GBIT | @@ -1937,7 +1938,7 @@ static int fec_enet_mii_init(struct platform_device *pdev) int err = -ENXIO, i; /* - * The dual fec interfaces are not equivalent with enet-mac. + * The i.MX28 dual fec interfaces are not equal. * Here are the differences: * * - fec0 supports MII & RMII modes while fec1 only supports RMII @@ -1952,7 +1953,7 @@ static int fec_enet_mii_init(struct platform_device *pdev) * mdio interface in board design, and need to be configured by * fec0 mii_bus. */ - if ((fep->quirks & FEC_QUIRK_ENET_MAC) && fep->dev_id > 0) { + if ((fep->quirks & FEC_QUIRK_SINGLE_MDIO) && fep->dev_id > 0) { /* fec1 uses fec0 mii_bus */ if (mii_cnt && fec0_mii_bus) { fep->mii_bus = fec0_mii_bus; @@ -2015,7 +2016,7 @@ static int fec_enet_mii_init(struct platform_device *pdev) mii_cnt++; /* save fec0 mii_bus */ - if (fep->quirks & FEC_QUIRK_ENET_MAC) + if (fep->quirks & FEC_QUIRK_SINGLE_MDIO) fec0_mii_bus = fep->mii_bus; return 0; @@ -3129,6 +3130,7 @@ fec_probe(struct platform_device *pdev) pdev->id_entry = of_id->data; fep->quirks = pdev->id_entry->driver_data; + fep->netdev = ndev; fep->num_rx_queues = num_rx_qs; fep->num_tx_queues = num_tx_qs; diff --git a/drivers/net/ethernet/intel/Kconfig b/drivers/net/ethernet/intel/Kconfig index 5b8300a..4d61ef5 100644 --- a/drivers/net/ethernet/intel/Kconfig +++ b/drivers/net/ethernet/intel/Kconfig @@ -281,6 +281,17 @@ config I40E_DCB If unsure, say N. +config I40E_FCOE + bool "Fibre Channel over Ethernet (FCoE)" + default n + depends on I40E && DCB && FCOE + ---help--- + Say Y here if you want to use Fibre Channel over Ethernet (FCoE) + in the driver. This will create new netdev for exclusive FCoE + use with XL710 FCoE offloads enabled. + + If unsure, say N. + config I40EVF tristate "Intel(R) XL710 X710 Virtual Function Ethernet support" depends on PCI_MSI diff --git a/drivers/net/ethernet/intel/e100.c b/drivers/net/ethernet/intel/e100.c index 781065e..e9c3a87 100644 --- a/drivers/net/ethernet/intel/e100.c +++ b/drivers/net/ethernet/intel/e100.c @@ -1543,7 +1543,7 @@ static int e100_phy_init(struct nic *nic) mdio_write(netdev, nic->mii.phy_id, MII_BMCR, bmcr); } else if ((nic->mac >= mac_82550_D102) || ((nic->flags & ich) && (mdio_read(netdev, nic->mii.phy_id, MII_TPISTATUS) & 0x8000) && - !(nic->eeprom[eeprom_cnfg_mdix] & eeprom_mdix_enabled))) { + (nic->eeprom[eeprom_cnfg_mdix] & eeprom_mdix_enabled))) { /* enable/disable MDI/MDI-X auto-switching. */ mdio_write(netdev, nic->mii.phy_id, MII_NCONFIG, nic->mii.force_media ? 0 : NCONFIG_AUTO_SWITCH); diff --git a/drivers/net/ethernet/intel/i40e/Makefile b/drivers/net/ethernet/intel/i40e/Makefile index 4b94ddb..c405819 100644 --- a/drivers/net/ethernet/intel/i40e/Makefile +++ b/drivers/net/ethernet/intel/i40e/Makefile @@ -44,4 +44,4 @@ i40e-objs := i40e_main.o \ i40e_virtchnl_pf.o i40e-$(CONFIG_I40E_DCB) += i40e_dcb.o i40e_dcb_nl.o -i40e-$(CONFIG_FCOE:m=y) += i40e_fcoe.o +i40e-$(CONFIG_I40E_FCOE) += i40e_fcoe.o diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c index 433a558..cb0de45 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c +++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c @@ -829,7 +829,7 @@ static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n, if (desc_n >= ring->count || desc_n < 0) { dev_info(&pf->pdev->dev, "descriptor %d not found\n", desc_n); - return; + goto out; } if (!is_rx_ring) { txd = I40E_TX_DESC(ring, desc_n); @@ -855,6 +855,8 @@ static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n, } else { dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n"); } + +out: kfree(ring); } diff --git a/drivers/net/ethernet/intel/i40e/i40e_osdep.h b/drivers/net/ethernet/intel/i40e/i40e_osdep.h index 045b5c4..ad802dd 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_osdep.h +++ b/drivers/net/ethernet/intel/i40e/i40e_osdep.h @@ -78,7 +78,7 @@ do { \ } while (0) typedef enum i40e_status_code i40e_status; -#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE) +#ifdef CONFIG_I40E_FCOE #define I40E_FCOE -#endif /* CONFIG_FCOE or CONFIG_FCOE_MODULE */ +#endif #endif /* _I40E_OSDEP_H_ */ diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index 04b4414..cecb340 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -658,6 +658,8 @@ static inline u32 i40e_get_head(struct i40e_ring *tx_ring) return le32_to_cpu(*(volatile __le32 *)head); } +#define WB_STRIDE 0x3 + /** * i40e_clean_tx_irq - Reclaim resources after transmit completes * @tx_ring: tx ring to clean @@ -759,6 +761,18 @@ static bool i40e_clean_tx_irq(struct i40e_ring *tx_ring, int budget) tx_ring->q_vector->tx.total_bytes += total_bytes; tx_ring->q_vector->tx.total_packets += total_packets; + /* check to see if there are any non-cache aligned descriptors + * waiting to be written back, and kick the hardware to force + * them to be written back in case of napi polling + */ + if (budget && + !((i & WB_STRIDE) == WB_STRIDE) && + !test_bit(__I40E_DOWN, &tx_ring->vsi->state) && + (I40E_DESC_UNUSED(tx_ring) != tx_ring->count)) + tx_ring->arm_wb = true; + else + tx_ring->arm_wb = false; + if (check_for_tx_hang(tx_ring) && i40e_check_tx_hang(tx_ring)) { /* schedule immediate reset if we believe we hung */ dev_info(tx_ring->dev, "Detected Tx Unit Hang\n" @@ -777,13 +791,16 @@ static bool i40e_clean_tx_irq(struct i40e_ring *tx_ring, int budget) netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); dev_info(tx_ring->dev, - "tx hang detected on queue %d, resetting adapter\n", + "tx hang detected on queue %d, reset requested\n", tx_ring->queue_index); - tx_ring->netdev->netdev_ops->ndo_tx_timeout(tx_ring->netdev); + /* do not fire the reset immediately, wait for the stack to + * decide we are truly stuck, also prevents every queue from + * simultaneously requesting a reset + */ - /* the adapter is about to reset, no point in enabling stuff */ - return true; + /* the adapter is about to reset, no point in enabling polling */ + budget = 1; } netdev_tx_completed_queue(netdev_get_tx_queue(tx_ring->netdev, @@ -806,7 +823,25 @@ static bool i40e_clean_tx_irq(struct i40e_ring *tx_ring, int budget) } } - return budget > 0; + return !!budget; +} + +/** + * i40e_force_wb - Arm hardware to do a wb on noncache aligned descriptors + * @vsi: the VSI we care about + * @q_vector: the vector on which to force writeback + * + **/ +static void i40e_force_wb(struct i40e_vsi *vsi, struct i40e_q_vector *q_vector) +{ + u32 val = I40E_PFINT_DYN_CTLN_INTENA_MASK | + I40E_PFINT_DYN_CTLN_SWINT_TRIG_MASK | + I40E_PFINT_DYN_CTLN_SW_ITR_INDX_ENA_MASK + /* allow 00 to be written to the index */; + + wr32(&vsi->back->hw, + I40E_PFINT_DYN_CTLN(q_vector->v_idx + vsi->base_vector - 1), + val); } /** @@ -1290,9 +1325,7 @@ static inline void i40e_rx_checksum(struct i40e_vsi *vsi, * so the total length of IPv4 header is IHL*4 bytes * The UDP_0 bit *may* bet set if the *inner* header is UDP */ - if (ipv4_tunnel && - (decoded.inner_prot != I40E_RX_PTYPE_INNER_PROT_UDP) && - !(rx_status & (1 << I40E_RX_DESC_STATUS_UDP_0_SHIFT))) { + if (ipv4_tunnel) { skb->transport_header = skb->mac_header + sizeof(struct ethhdr) + (ip_hdr(skb)->ihl * 4); @@ -1302,15 +1335,19 @@ static inline void i40e_rx_checksum(struct i40e_vsi *vsi, skb->protocol == htons(ETH_P_8021AD)) ? VLAN_HLEN : 0; - rx_udp_csum = udp_csum(skb); - iph = ip_hdr(skb); - csum = csum_tcpudp_magic( - iph->saddr, iph->daddr, - (skb->len - skb_transport_offset(skb)), - IPPROTO_UDP, rx_udp_csum); + if ((ip_hdr(skb)->protocol == IPPROTO_UDP) && + (udp_hdr(skb)->check != 0)) { + rx_udp_csum = udp_csum(skb); + iph = ip_hdr(skb); + csum = csum_tcpudp_magic( + iph->saddr, iph->daddr, + (skb->len - skb_transport_offset(skb)), + IPPROTO_UDP, rx_udp_csum); - if (udp_hdr(skb)->check != csum) - goto checksum_fail; + if (udp_hdr(skb)->check != csum) + goto checksum_fail; + + } /* else its GRE and so no outer UDP header */ } skb->ip_summed = CHECKSUM_UNNECESSARY; @@ -1581,6 +1618,7 @@ int i40e_napi_poll(struct napi_struct *napi, int budget) struct i40e_vsi *vsi = q_vector->vsi; struct i40e_ring *ring; bool clean_complete = true; + bool arm_wb = false; int budget_per_ring; if (test_bit(__I40E_DOWN, &vsi->state)) { @@ -1591,8 +1629,10 @@ int i40e_napi_poll(struct napi_struct *napi, int budget) /* Since the actual Tx work is minimal, we can give the Tx a larger * budget and be more aggressive about cleaning up the Tx descriptors. */ - i40e_for_each_ring(ring, q_vector->tx) + i40e_for_each_ring(ring, q_vector->tx) { clean_complete &= i40e_clean_tx_irq(ring, vsi->work_limit); + arm_wb |= ring->arm_wb; + } /* We attempt to distribute budget to each Rx queue fairly, but don't * allow the budget to go below 1 because that would exit polling early. @@ -1603,8 +1643,11 @@ int i40e_napi_poll(struct napi_struct *napi, int budget) clean_complete &= i40e_clean_rx_irq(ring, budget_per_ring); /* If work not completed, return budget and polling will return */ - if (!clean_complete) + if (!clean_complete) { + if (arm_wb) + i40e_force_wb(vsi, q_vector); return budget; + } /* Work is done so exit the polling mode and re-enable the interrupt */ napi_complete(napi); @@ -1840,17 +1883,16 @@ static int i40e_tso(struct i40e_ring *tx_ring, struct sk_buff *skb, if (err < 0) return err; - if (protocol == htons(ETH_P_IP)) { - iph = skb->encapsulation ? inner_ip_hdr(skb) : ip_hdr(skb); + iph = skb->encapsulation ? inner_ip_hdr(skb) : ip_hdr(skb); + ipv6h = skb->encapsulation ? inner_ipv6_hdr(skb) : ipv6_hdr(skb); + + if (iph->version == 4) { tcph = skb->encapsulation ? inner_tcp_hdr(skb) : tcp_hdr(skb); iph->tot_len = 0; iph->check = 0; tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, 0, IPPROTO_TCP, 0); - } else if (skb_is_gso_v6(skb)) { - - ipv6h = skb->encapsulation ? inner_ipv6_hdr(skb) - : ipv6_hdr(skb); + } else if (ipv6h->version == 6) { tcph = skb->encapsulation ? inner_tcp_hdr(skb) : tcp_hdr(skb); ipv6h->payload_len = 0; tcph->check = ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, @@ -1946,13 +1988,9 @@ static void i40e_tx_enable_csum(struct sk_buff *skb, u32 tx_flags, I40E_TX_CTX_EXT_IP_IPV4_NO_CSUM; } } else if (tx_flags & I40E_TX_FLAGS_IPV6) { - if (tx_flags & I40E_TX_FLAGS_TSO) { - *cd_tunneling |= I40E_TX_CTX_EXT_IP_IPV6; + *cd_tunneling |= I40E_TX_CTX_EXT_IP_IPV6; + if (tx_flags & I40E_TX_FLAGS_TSO) ip_hdr(skb)->check = 0; - } else { - *cd_tunneling |= - I40E_TX_CTX_EXT_IP_IPV4_NO_CSUM; - } } /* Now set the ctx descriptor fields */ @@ -1962,7 +2000,10 @@ static void i40e_tx_enable_csum(struct sk_buff *skb, u32 tx_flags, ((skb_inner_network_offset(skb) - skb_transport_offset(skb)) >> 1) << I40E_TXD_CTX_QW0_NATLEN_SHIFT; - + if (this_ip_hdr->version == 6) { + tx_flags &= ~I40E_TX_FLAGS_IPV4; + tx_flags |= I40E_TX_FLAGS_IPV6; + } } else { network_hdr_len = skb_network_header_len(skb); this_ip_hdr = ip_hdr(skb); @@ -2198,7 +2239,6 @@ static void i40e_tx_map(struct i40e_ring *tx_ring, struct sk_buff *skb, /* Place RS bit on last descriptor of any packet that spans across the * 4th descriptor (WB_STRIDE aka 0x3) in a 64B cacheline. */ -#define WB_STRIDE 0x3 if (((i & WB_STRIDE) != WB_STRIDE) && (first <= &tx_ring->tx_bi[i]) && (first >= &tx_ring->tx_bi[i & ~WB_STRIDE])) { diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h index e60d3ac..18b0023 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h @@ -241,6 +241,7 @@ struct i40e_ring { unsigned long last_rx_timestamp; bool ring_active; /* is ring online or not */ + bool arm_wb; /* do something to arm write back */ /* stats structs */ struct i40e_queue_stats stats; diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c index 051ea94..0f69ef8 100644 --- a/drivers/net/ethernet/intel/igb/e1000_82575.c +++ b/drivers/net/ethernet/intel/igb/e1000_82575.c @@ -1125,7 +1125,7 @@ static s32 igb_acquire_swfw_sync_82575(struct e1000_hw *hw, u16 mask) u32 swmask = mask; u32 fwmask = mask << 16; s32 ret_val = 0; - s32 i = 0, timeout = 200; /* FIXME: find real value to use here */ + s32 i = 0, timeout = 200; while (i < timeout) { if (igb_get_hw_semaphore(hw)) { diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 943cbd4..03e9eb0 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -1829,7 +1829,7 @@ static int mlx4_init_hca(struct mlx4_dev *dev) err = mlx4_dev_cap(dev, &dev_cap); if (err) { mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n"); - goto err_stop_fw; + return err; } choose_steering_mode(dev, &dev_cap); @@ -1860,7 +1860,7 @@ static int mlx4_init_hca(struct mlx4_dev *dev) &init_hca); if ((long long) icm_size < 0) { err = icm_size; - goto err_stop_fw; + return err; } dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1; @@ -1874,7 +1874,7 @@ static int mlx4_init_hca(struct mlx4_dev *dev) err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size); if (err) - goto err_stop_fw; + return err; err = mlx4_INIT_HCA(dev, &init_hca); if (err) { @@ -1886,7 +1886,7 @@ static int mlx4_init_hca(struct mlx4_dev *dev) err = mlx4_query_func(dev, &dev_cap); if (err < 0) { mlx4_err(dev, "QUERY_FUNC command failed, aborting.\n"); - goto err_stop_fw; + goto err_close; } else if (err & MLX4_QUERY_FUNC_NUM_SYS_EQS) { dev->caps.num_eqs = dev_cap.max_eqs; dev->caps.reserved_eqs = dev_cap.reserved_eqs; @@ -2006,11 +2006,6 @@ err_free_icm: if (!mlx4_is_slave(dev)) mlx4_free_icms(dev); -err_stop_fw: - if (!mlx4_is_slave(dev)) { - mlx4_UNMAP_FA(dev); - mlx4_free_icm(dev, priv->fw.fw_icm, 0); - } return err; } diff --git a/drivers/net/ethernet/mellanox/mlx4/mr.c b/drivers/net/ethernet/mellanox/mlx4/mr.c index d6f5496..7094a9c 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mr.c +++ b/drivers/net/ethernet/mellanox/mlx4/mr.c @@ -584,6 +584,7 @@ EXPORT_SYMBOL_GPL(mlx4_mr_free); void mlx4_mr_rereg_mem_cleanup(struct mlx4_dev *dev, struct mlx4_mr *mr) { mlx4_mtt_cleanup(dev, &mr->mtt); + mr->mtt.order = -1; } EXPORT_SYMBOL_GPL(mlx4_mr_rereg_mem_cleanup); @@ -593,14 +594,14 @@ int mlx4_mr_rereg_mem_write(struct mlx4_dev *dev, struct mlx4_mr *mr, { int err; - mpt_entry->start = cpu_to_be64(iova); - mpt_entry->length = cpu_to_be64(size); - mpt_entry->entity_size = cpu_to_be32(page_shift); - err = mlx4_mtt_init(dev, npages, page_shift, &mr->mtt); if (err) return err; + mpt_entry->start = cpu_to_be64(mr->iova); + mpt_entry->length = cpu_to_be64(mr->size); + mpt_entry->entity_size = cpu_to_be32(mr->mtt.page_shift); + mpt_entry->pd_flags &= cpu_to_be32(MLX4_MPT_PD_MASK | MLX4_MPT_PD_FLAG_EN_INV); mpt_entry->flags &= cpu_to_be32(MLX4_MPT_FLAG_FREE | diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c index af09905..71af98b 100644 --- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c +++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c @@ -4033,8 +4033,10 @@ static int myri10ge_probe(struct pci_dev *pdev, const struct pci_device_id *ent) (void)pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); mgp->cmd = dma_alloc_coherent(&pdev->dev, sizeof(*mgp->cmd), &mgp->cmd_bus, GFP_KERNEL); - if (mgp->cmd == NULL) + if (!mgp->cmd) { + status = -ENOMEM; goto abort_with_enabled; + } mgp->board_span = pci_resource_len(pdev, 0); mgp->iomem_base = pci_resource_start(pdev, 0); diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c index c2f09af..4847713 100644 --- a/drivers/net/ethernet/qlogic/qla3xxx.c +++ b/drivers/net/ethernet/qlogic/qla3xxx.c @@ -146,10 +146,7 @@ static int ql_wait_for_drvr_lock(struct ql3_adapter *qdev) { int i = 0; - while (i < 10) { - if (i) - ssleep(1); - + do { if (ql_sem_lock(qdev, QL_DRVR_SEM_MASK, (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) @@ -158,7 +155,8 @@ static int ql_wait_for_drvr_lock(struct ql3_adapter *qdev) "driver lock acquired\n"); return 1; } - } + ssleep(1); + } while (++i < 10); netdev_err(qdev->ndev, "Timed out waiting for driver lock...\n"); return 0; diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c index 9929b97..2528c3f 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c @@ -2605,6 +2605,7 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } else { dev_err(&pdev->dev, "%s: failed. Please Reboot\n", __func__); + err = -ENODEV; goto err_out_free_hw; } diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index c29ba80..37583a9 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -473,6 +473,7 @@ static struct sh_eth_cpu_data r8a777x_data = { .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI, + .fdr_value = 0x00000f0f, .apr = 1, .mpr = 1, @@ -495,6 +496,7 @@ static struct sh_eth_cpu_data r8a779x_data = { .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI, + .fdr_value = 0x00000f0f, .apr = 1, .mpr = 1, @@ -536,6 +538,8 @@ static struct sh_eth_cpu_data sh7724_data = { EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI, + .trscer_err_mask = DESC_I_RINT8, + .apr = 1, .mpr = 1, .tpauser = 1, @@ -856,6 +860,9 @@ static void sh_eth_set_default_cpu_data(struct sh_eth_cpu_data *cd) if (!cd->eesr_err_check) cd->eesr_err_check = DEFAULT_EESR_ERR_CHECK; + + if (!cd->trscer_err_mask) + cd->trscer_err_mask = DEFAULT_TRSCER_ERR_MASK; } static int sh_eth_check_reset(struct net_device *ndev) @@ -1294,7 +1301,7 @@ static int sh_eth_dev_init(struct net_device *ndev, bool start) /* Frame recv control (enable multiple-packets per rx irq) */ sh_eth_write(ndev, RMCR_RNC, RMCR); - sh_eth_write(ndev, DESC_I_RINT8 | DESC_I_RINT5 | DESC_I_TINT2, TRSCER); + sh_eth_write(ndev, mdp->cd->trscer_err_mask, TRSCER); if (mdp->cd->bculr) sh_eth_write(ndev, 0x800, BCULR); /* Burst sycle set */ diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h index 22301bf..71f5de1 100644 --- a/drivers/net/ethernet/renesas/sh_eth.h +++ b/drivers/net/ethernet/renesas/sh_eth.h @@ -369,6 +369,8 @@ enum DESC_I_BIT { DESC_I_RINT1 = 0x0001, }; +#define DEFAULT_TRSCER_ERR_MASK (DESC_I_RINT8 | DESC_I_RINT5 | DESC_I_TINT2) + /* RPADIR */ enum RPADIR_BIT { RPADIR_PADS1 = 0x20000, RPADIR_PADS0 = 0x10000, @@ -470,6 +472,9 @@ struct sh_eth_cpu_data { unsigned long tx_check; unsigned long eesr_err_check; + /* Error mask */ + unsigned long trscer_err_mask; + /* hardware features */ unsigned long irq_flags; /* IRQ configuration flags */ unsigned no_psr:1; /* EtherC DO NOT have PSR */ diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index c560f9a..64d1cef 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -610,7 +610,7 @@ static void cpsw_set_promiscious(struct net_device *ndev, bool enable) /* Clear all mcast from ALE */ cpsw_ale_flush_multicast(ale, ALE_ALL_PORTS << - priv->host_port); + priv->host_port, -1); /* Flood All Unicast Packets to Host port */ cpsw_ale_control_set(ale, 0, ALE_P0_UNI_FLOOD, 1); @@ -634,6 +634,12 @@ static void cpsw_set_promiscious(struct net_device *ndev, bool enable) static void cpsw_ndo_set_rx_mode(struct net_device *ndev) { struct cpsw_priv *priv = netdev_priv(ndev); + int vid; + + if (priv->data.dual_emac) + vid = priv->slaves[priv->emac_port].port_vlan; + else + vid = priv->data.default_vlan; if (ndev->flags & IFF_PROMISC) { /* Enable promiscuous mode */ @@ -649,7 +655,8 @@ static void cpsw_ndo_set_rx_mode(struct net_device *ndev) cpsw_ale_set_allmulti(priv->ale, priv->ndev->flags & IFF_ALLMULTI); /* Clear all mcast from ALE */ - cpsw_ale_flush_multicast(priv->ale, ALE_ALL_PORTS << priv->host_port); + cpsw_ale_flush_multicast(priv->ale, ALE_ALL_PORTS << priv->host_port, + vid); if (!netdev_mc_empty(ndev)) { struct netdev_hw_addr *ha; @@ -757,6 +764,14 @@ requeue: static irqreturn_t cpsw_interrupt(int irq, void *dev_id) { struct cpsw_priv *priv = dev_id; + int value = irq - priv->irqs_table[0]; + + /* NOTICE: Ending IRQ here. The trick with the 'value' variable above + * is to make sure we will always write the correct value to the EOI + * register. Namely 0 for RX_THRESH Interrupt, 1 for RX Interrupt, 2 + * for TX Interrupt and 3 for MISC Interrupt. + */ + cpdma_ctlr_eoi(priv->dma, value); cpsw_intr_disable(priv); if (priv->irq_enabled == true) { @@ -786,8 +801,6 @@ static int cpsw_poll(struct napi_struct *napi, int budget) int num_tx, num_rx; num_tx = cpdma_chan_process(priv->txch, 128); - if (num_tx) - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); num_rx = cpdma_chan_process(priv->rxch, budget); if (num_rx < budget) { @@ -795,7 +808,6 @@ static int cpsw_poll(struct napi_struct *napi, int budget) napi_complete(napi); cpsw_intr_enable(priv); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX); prim_cpsw = cpsw_get_slave_priv(priv, 0); if (prim_cpsw->irq_enabled == false) { prim_cpsw->irq_enabled = true; @@ -1310,8 +1322,6 @@ static int cpsw_ndo_open(struct net_device *ndev) napi_enable(&priv->napi); cpdma_ctlr_start(priv->dma); cpsw_intr_enable(priv); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); prim_cpsw = cpsw_get_slave_priv(priv, 0); if (prim_cpsw->irq_enabled == false) { @@ -1578,9 +1588,6 @@ static void cpsw_ndo_tx_timeout(struct net_device *ndev) cpdma_chan_start(priv->txch); cpdma_ctlr_int_ctrl(priv->dma, true); cpsw_intr_enable(priv); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); - } static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p) @@ -1620,9 +1627,6 @@ static void cpsw_ndo_poll_controller(struct net_device *ndev) cpsw_interrupt(ndev->irq, priv); cpdma_ctlr_int_ctrl(priv->dma, true); cpsw_intr_enable(priv); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX); - cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); - } #endif diff --git a/drivers/net/ethernet/ti/cpsw_ale.c b/drivers/net/ethernet/ti/cpsw_ale.c index 097ebe7..5246b3a 100644 --- a/drivers/net/ethernet/ti/cpsw_ale.c +++ b/drivers/net/ethernet/ti/cpsw_ale.c @@ -234,7 +234,7 @@ static void cpsw_ale_flush_mcast(struct cpsw_ale *ale, u32 *ale_entry, cpsw_ale_set_entry_type(ale_entry, ALE_TYPE_FREE); } -int cpsw_ale_flush_multicast(struct cpsw_ale *ale, int port_mask) +int cpsw_ale_flush_multicast(struct cpsw_ale *ale, int port_mask, int vid) { u32 ale_entry[ALE_ENTRY_WORDS]; int ret, idx; @@ -245,6 +245,14 @@ int cpsw_ale_flush_multicast(struct cpsw_ale *ale, int port_mask) if (ret != ALE_TYPE_ADDR && ret != ALE_TYPE_VLAN_ADDR) continue; + /* if vid passed is -1 then remove all multicast entry from + * the table irrespective of vlan id, if a valid vlan id is + * passed then remove only multicast added to that vlan id. + * if vlan id doesn't match then move on to next entry. + */ + if (vid != -1 && cpsw_ale_get_vlan_id(ale_entry) != vid) + continue; + if (cpsw_ale_get_mcast(ale_entry)) { u8 addr[6]; diff --git a/drivers/net/ethernet/ti/cpsw_ale.h b/drivers/net/ethernet/ti/cpsw_ale.h index c0d4127..af1e7ec 100644 --- a/drivers/net/ethernet/ti/cpsw_ale.h +++ b/drivers/net/ethernet/ti/cpsw_ale.h @@ -92,7 +92,7 @@ void cpsw_ale_stop(struct cpsw_ale *ale); int cpsw_ale_set_ageout(struct cpsw_ale *ale, int ageout); int cpsw_ale_flush(struct cpsw_ale *ale, int port_mask); -int cpsw_ale_flush_multicast(struct cpsw_ale *ale, int port_mask); +int cpsw_ale_flush_multicast(struct cpsw_ale *ale, int port_mask, int vid); int cpsw_ale_add_ucast(struct cpsw_ale *ale, u8 *addr, int port, int flags, u16 vid); int cpsw_ale_del_ucast(struct cpsw_ale *ale, u8 *addr, int port, diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c index 9c2d91e..dbcbf0c 100644 --- a/drivers/net/ethernet/xilinx/ll_temac_main.c +++ b/drivers/net/ethernet/xilinx/ll_temac_main.c @@ -1043,6 +1043,7 @@ static int temac_of_probe(struct platform_device *op) lp->regs = of_iomap(op->dev.of_node, 0); if (!lp->regs) { dev_err(&op->dev, "could not map temac regs.\n"); + rc = -ENOMEM; goto nodev; } @@ -1062,6 +1063,7 @@ static int temac_of_probe(struct platform_device *op) np = of_parse_phandle(op->dev.of_node, "llink-connected", 0); if (!np) { dev_err(&op->dev, "could not find DMA node\n"); + rc = -ENODEV; goto err_iounmap; } diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c index c18a0c6..a6d2860 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c @@ -1501,6 +1501,7 @@ static int axienet_of_probe(struct platform_device *op) lp->regs = of_iomap(op->dev.of_node, 0); if (!lp->regs) { dev_err(&op->dev, "could not map Axi Ethernet regs.\n"); + ret = -ENOMEM; goto nodev; } /* Setup checksum offload, but default to off if not specified */ @@ -1563,6 +1564,7 @@ static int axienet_of_probe(struct platform_device *op) np = of_parse_phandle(op->dev.of_node, "axistream-connected", 0); if (!np) { dev_err(&op->dev, "could not find DMA node\n"); + ret = -ENODEV; goto err_iounmap; } lp->dma_regs = of_iomap(np, 0); diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c index 2485879..9d4ce38 100644 --- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c +++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c @@ -1109,6 +1109,7 @@ static int xemaclite_of_probe(struct platform_device *ofdev) res = platform_get_resource(ofdev, IORESOURCE_IRQ, 0); if (!res) { dev_err(dev, "no IRQ found\n"); + rc = -ENXIO; goto error; } diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index 93e2242..f7ff493 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -629,6 +629,7 @@ static int team_change_mode(struct team *team, const char *kind) static void team_notify_peers_work(struct work_struct *work) { struct team *team; + int val; team = container_of(work, struct team, notify_peers.dw.work); @@ -636,9 +637,14 @@ static void team_notify_peers_work(struct work_struct *work) schedule_delayed_work(&team->notify_peers.dw, 0); return; } + val = atomic_dec_if_positive(&team->notify_peers.count_pending); + if (val < 0) { + rtnl_unlock(); + return; + } call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, team->dev); rtnl_unlock(); - if (!atomic_dec_and_test(&team->notify_peers.count_pending)) + if (val) schedule_delayed_work(&team->notify_peers.dw, msecs_to_jiffies(team->notify_peers.interval)); } @@ -669,6 +675,7 @@ static void team_notify_peers_fini(struct team *team) static void team_mcast_rejoin_work(struct work_struct *work) { struct team *team; + int val; team = container_of(work, struct team, mcast_rejoin.dw.work); @@ -676,9 +683,14 @@ static void team_mcast_rejoin_work(struct work_struct *work) schedule_delayed_work(&team->mcast_rejoin.dw, 0); return; } + val = atomic_dec_if_positive(&team->mcast_rejoin.count_pending); + if (val < 0) { + rtnl_unlock(); + return; + } call_netdevice_notifiers(NETDEV_RESEND_IGMP, team->dev); rtnl_unlock(); - if (!atomic_dec_and_test(&team->mcast_rejoin.count_pending)) + if (val) schedule_delayed_work(&team->mcast_rejoin.dw, msecs_to_jiffies(team->mcast_rejoin.interval)); } diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c index dcb6d33..1e9cdca 100644 --- a/drivers/net/usb/kaweth.c +++ b/drivers/net/usb/kaweth.c @@ -1276,7 +1276,7 @@ static int usb_start_wait_urb(struct urb *urb, int timeout, int* actual_length) awd.done = 0; urb->context = &awd; - status = usb_submit_urb(urb, GFP_NOIO); + status = usb_submit_urb(urb, GFP_ATOMIC); if (status) { // something went wrong usb_free_urb(urb); diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index b8a82b8..602dc66 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -56,6 +56,8 @@ struct qmi_wwan_state { /* default ethernet address used by the modem */ static const u8 default_modem_addr[ETH_ALEN] = {0x02, 0x50, 0xf3}; +static const u8 buggy_fw_addr[ETH_ALEN] = {0x00, 0xa0, 0xc6, 0x00, 0x00, 0x00}; + /* Make up an ethernet header if the packet doesn't have one. * * A firmware bug common among several devices cause them to send raw @@ -332,10 +334,12 @@ next_desc: usb_driver_release_interface(driver, info->data); } - /* Never use the same address on both ends of the link, even - * if the buggy firmware told us to. + /* Never use the same address on both ends of the link, even if the + * buggy firmware told us to. Or, if device is assigned the well-known + * buggy firmware MAC address, replace it with a random address, */ - if (ether_addr_equal(dev->net->dev_addr, default_modem_addr)) + if (ether_addr_equal(dev->net->dev_addr, default_modem_addr) || + ether_addr_equal(dev->net->dev_addr, buggy_fw_addr)) eth_hw_addr_random(dev->net); /* make MAC addr easily distinguishable from an IP header */ diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 2d1c77e..57ec23e 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -1897,6 +1897,22 @@ static void _rtl8152_set_rx_mode(struct net_device *netdev) netif_wake_queue(netdev); } +static netdev_features_t +rtl8152_features_check(struct sk_buff *skb, struct net_device *dev, + netdev_features_t features) +{ + u32 mss = skb_shinfo(skb)->gso_size; + int max_offset = mss ? GTTCPHO_MAX : TCPHO_MAX; + int offset = skb_transport_offset(skb); + + if ((mss || skb->ip_summed == CHECKSUM_PARTIAL) && offset > max_offset) + features &= ~(NETIF_F_ALL_CSUM | NETIF_F_GSO_MASK); + else if ((skb->len + sizeof(struct tx_desc)) > agg_buf_sz) + features &= ~NETIF_F_GSO_MASK; + + return features; +} + static netdev_tx_t rtl8152_start_xmit(struct sk_buff *skb, struct net_device *netdev) { @@ -3706,6 +3722,7 @@ static const struct net_device_ops rtl8152_netdev_ops = { .ndo_set_mac_address = rtl8152_set_mac_address, .ndo_change_mtu = rtl8152_change_mtu, .ndo_validate_addr = eth_validate_addr, + .ndo_features_check = rtl8152_features_check, }; static void r8152b_get_version(struct r8152 *tp) diff --git a/drivers/net/wireless/iwlwifi/iwl-7000.c b/drivers/net/wireless/iwlwifi/iwl-7000.c index e5be2d2..a5f9198 100644 --- a/drivers/net/wireless/iwlwifi/iwl-7000.c +++ b/drivers/net/wireless/iwlwifi/iwl-7000.c @@ -69,8 +69,8 @@ #include "iwl-agn-hw.h" /* Highest firmware API version supported */ -#define IWL7260_UCODE_API_MAX 10 -#define IWL3160_UCODE_API_MAX 10 +#define IWL7260_UCODE_API_MAX 12 +#define IWL3160_UCODE_API_MAX 12 /* Oldest version we won't warn about */ #define IWL7260_UCODE_API_OK 10 @@ -105,7 +105,7 @@ #define IWL7265_MODULE_FIRMWARE(api) IWL7265_FW_PRE __stringify(api) ".ucode" #define IWL7265D_FW_PRE "iwlwifi-7265D-" -#define IWL7265D_MODULE_FIRMWARE(api) IWL7265_FW_PRE __stringify(api) ".ucode" +#define IWL7265D_MODULE_FIRMWARE(api) IWL7265D_FW_PRE __stringify(api) ".ucode" #define NVM_HW_SECTION_NUM_FAMILY_7000 0 diff --git a/drivers/net/wireless/iwlwifi/iwl-8000.c b/drivers/net/wireless/iwlwifi/iwl-8000.c index bf0a95c..3668fc5 100644 --- a/drivers/net/wireless/iwlwifi/iwl-8000.c +++ b/drivers/net/wireless/iwlwifi/iwl-8000.c @@ -69,7 +69,7 @@ #include "iwl-agn-hw.h" /* Highest firmware API version supported */ -#define IWL8000_UCODE_API_MAX 10 +#define IWL8000_UCODE_API_MAX 12 /* Oldest version we won't warn about */ #define IWL8000_UCODE_API_OK 10 diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-file.h b/drivers/net/wireless/iwlwifi/iwl-fw-file.h index f2a047f..1bbe4fc 100644 --- a/drivers/net/wireless/iwlwifi/iwl-fw-file.h +++ b/drivers/net/wireless/iwlwifi/iwl-fw-file.h @@ -243,6 +243,9 @@ enum iwl_ucode_tlv_flag { * @IWL_UCODE_TLV_API_SF_NO_DUMMY_NOTIF: ucode supports disabling dummy notif. * @IWL_UCODE_TLV_API_FRAGMENTED_SCAN: This ucode supports active dwell time * longer than the passive one, which is essential for fragmented scan. + * @IWL_UCODE_TLV_API_BASIC_DWELL: use only basic dwell time in scan command, + * regardless of the band or the number of the probes. FW will calculate + * the actual dwell time. */ enum iwl_ucode_tlv_api { IWL_UCODE_TLV_API_WOWLAN_CONFIG_TID = BIT(0), @@ -253,6 +256,7 @@ enum iwl_ucode_tlv_api { IWL_UCODE_TLV_API_LMAC_SCAN = BIT(6), IWL_UCODE_TLV_API_SF_NO_DUMMY_NOTIF = BIT(7), IWL_UCODE_TLV_API_FRAGMENTED_SCAN = BIT(8), + IWL_UCODE_TLV_API_BASIC_DWELL = BIT(13), }; /** diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h index 1f2acf4..201846d 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h +++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h @@ -672,6 +672,7 @@ struct iwl_scan_channel_opt { * @IWL_MVM_LMAC_SCAN_FLAG_FRAGMENTED: all passive scans will be fragmented * @IWL_MVM_LMAC_SCAN_FLAGS_RRM_ENABLED: insert WFA vendor-specific TPC report * and DS parameter set IEs into probe requests. + * @IWL_MVM_LMAC_SCAN_FLAG_MATCH: Send match found notification on matches */ enum iwl_mvm_lmac_scan_flags { IWL_MVM_LMAC_SCAN_FLAG_PASS_ALL = BIT(0), @@ -681,6 +682,7 @@ enum iwl_mvm_lmac_scan_flags { IWL_MVM_LMAC_SCAN_FLAG_MULTIPLE_SSIDS = BIT(4), IWL_MVM_LMAC_SCAN_FLAG_FRAGMENTED = BIT(5), IWL_MVM_LMAC_SCAN_FLAGS_RRM_ENABLED = BIT(6), + IWL_MVM_LMAC_SCAN_FLAG_MATCH = BIT(9), }; enum iwl_scan_priority { diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c index e5294d0..ec9a8e7 100644 --- a/drivers/net/wireless/iwlwifi/mvm/scan.c +++ b/drivers/net/wireless/iwlwifi/mvm/scan.c @@ -171,15 +171,21 @@ static void iwl_mvm_scan_fill_ssids(struct iwl_ssid_ie *cmd_ssid, * already included in the probe template, so we need to set only * req->n_ssids - 1 bits in addition to the first bit. */ -static u16 iwl_mvm_get_active_dwell(enum ieee80211_band band, int n_ssids) +static u16 iwl_mvm_get_active_dwell(struct iwl_mvm *mvm, + enum ieee80211_band band, int n_ssids) { + if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BASIC_DWELL) + return 10; if (band == IEEE80211_BAND_2GHZ) return 20 + 3 * (n_ssids + 1); return 10 + 2 * (n_ssids + 1); } -static u16 iwl_mvm_get_passive_dwell(enum ieee80211_band band) +static u16 iwl_mvm_get_passive_dwell(struct iwl_mvm *mvm, + enum ieee80211_band band) { + if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BASIC_DWELL) + return 110; return band == IEEE80211_BAND_2GHZ ? 100 + 20 : 100 + 10; } @@ -331,7 +337,8 @@ static void iwl_mvm_scan_calc_params(struct iwl_mvm *mvm, */ if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { u32 passive_dwell = - iwl_mvm_get_passive_dwell(IEEE80211_BAND_2GHZ); + iwl_mvm_get_passive_dwell(mvm, + IEEE80211_BAND_2GHZ); params->max_out_time = passive_dwell; } else { params->passive_fragmented = true; @@ -348,8 +355,8 @@ not_bound: params->dwell[band].passive = frag_passive_dwell; else params->dwell[band].passive = - iwl_mvm_get_passive_dwell(band); - params->dwell[band].active = iwl_mvm_get_active_dwell(band, + iwl_mvm_get_passive_dwell(mvm, band); + params->dwell[band].active = iwl_mvm_get_active_dwell(mvm, band, n_ssids); } } @@ -1448,6 +1455,8 @@ int iwl_mvm_unified_sched_scan_lmac(struct iwl_mvm *mvm, if (iwl_mvm_scan_pass_all(mvm, req)) flags |= IWL_MVM_LMAC_SCAN_FLAG_PASS_ALL; + else + flags |= IWL_MVM_LMAC_SCAN_FLAG_MATCH; if (req->n_ssids == 1 && req->ssids[0].ssid_len != 0) flags |= IWL_MVM_LMAC_SCAN_FLAG_PRE_CONNECTION; diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c index 4f15d9d..4333306 100644 --- a/drivers/net/wireless/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/iwlwifi/mvm/tx.c @@ -108,8 +108,12 @@ void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb, tx_flags &= ~TX_CMD_FLG_SEQ_CTL; } - /* tid_tspec will default to 0 = BE when QOS isn't enabled */ - ac = tid_to_mac80211_ac[tx_cmd->tid_tspec]; + /* Default to 0 (BE) when tid_spec is set to IWL_TID_NON_QOS */ + if (tx_cmd->tid_tspec < IWL_MAX_TID_COUNT) + ac = tid_to_mac80211_ac[tx_cmd->tid_tspec]; + else + ac = tid_to_mac80211_ac[0]; + tx_flags |= iwl_mvm_bt_coex_tx_prio(mvm, hdr, info, ac) << TX_CMD_FLG_BT_PRIO_POS; diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c index e56e77e..917431e 100644 --- a/drivers/net/wireless/iwlwifi/mvm/utils.c +++ b/drivers/net/wireless/iwlwifi/mvm/utils.c @@ -665,7 +665,7 @@ bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm) if (num_of_ant(mvm->fw->valid_rx_ant) == 1) return false; - if (!mvm->cfg->rx_with_siso_diversity) + if (mvm->cfg->rx_with_siso_diversity) return false; ieee80211_iterate_active_interfaces_atomic( diff --git a/drivers/net/wireless/iwlwifi/pcie/drv.c b/drivers/net/wireless/iwlwifi/pcie/drv.c index 2f0c4b1..d5aadb0 100644 --- a/drivers/net/wireless/iwlwifi/pcie/drv.c +++ b/drivers/net/wireless/iwlwifi/pcie/drv.c @@ -527,8 +527,10 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) else if (cfg == &iwl7265_n_cfg) cfg_7265d = &iwl7265d_n_cfg; if (cfg_7265d && - (iwl_trans->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_7265D) + (iwl_trans->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_7265D) { cfg = cfg_7265d; + iwl_trans->cfg = cfg_7265d; + } #endif pci_set_drvdata(pdev, iwl_trans); diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c index 846a2e6..c70efb9 100644 --- a/drivers/net/wireless/rtlwifi/pci.c +++ b/drivers/net/wireless/rtlwifi/pci.c @@ -666,7 +666,8 @@ tx_status_ok: } static int _rtl_pci_init_one_rxdesc(struct ieee80211_hw *hw, - u8 *entry, int rxring_idx, int desc_idx) + struct sk_buff *new_skb, u8 *entry, + int rxring_idx, int desc_idx) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); @@ -674,11 +675,15 @@ static int _rtl_pci_init_one_rxdesc(struct ieee80211_hw *hw, u8 tmp_one = 1; struct sk_buff *skb; + if (likely(new_skb)) { + skb = new_skb; + goto remap; + } skb = dev_alloc_skb(rtlpci->rxbuffersize); if (!skb) return 0; - rtlpci->rx_ring[rxring_idx].rx_buf[desc_idx] = skb; +remap: /* just set skb->cb to mapping addr for pci_unmap_single use */ *((dma_addr_t *)skb->cb) = pci_map_single(rtlpci->pdev, skb_tail_pointer(skb), @@ -686,6 +691,7 @@ static int _rtl_pci_init_one_rxdesc(struct ieee80211_hw *hw, bufferaddress = *((dma_addr_t *)skb->cb); if (pci_dma_mapping_error(rtlpci->pdev, bufferaddress)) return 0; + rtlpci->rx_ring[rxring_idx].rx_buf[desc_idx] = skb; if (rtlpriv->use_new_trx_flow) { rtlpriv->cfg->ops->set_desc(hw, (u8 *)entry, false, HW_DESC_RX_PREPARE, @@ -781,6 +787,7 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw) /*rx pkt */ struct sk_buff *skb = rtlpci->rx_ring[rxring_idx].rx_buf[ rtlpci->rx_ring[rxring_idx].idx]; + struct sk_buff *new_skb; if (rtlpriv->use_new_trx_flow) { rx_remained_cnt = @@ -807,6 +814,13 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw) pci_unmap_single(rtlpci->pdev, *((dma_addr_t *)skb->cb), rtlpci->rxbuffersize, PCI_DMA_FROMDEVICE); + /* get a new skb - if fail, old one will be reused */ + new_skb = dev_alloc_skb(rtlpci->rxbuffersize); + if (unlikely(!new_skb)) { + pr_err("Allocation of new skb failed in %s\n", + __func__); + goto no_new; + } if (rtlpriv->use_new_trx_flow) { buffer_desc = &rtlpci->rx_ring[rxring_idx].buffer_desc @@ -911,14 +925,16 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw) schedule_work(&rtlpriv->works.lps_change_work); } end: + skb = new_skb; +no_new: if (rtlpriv->use_new_trx_flow) { - _rtl_pci_init_one_rxdesc(hw, (u8 *)buffer_desc, + _rtl_pci_init_one_rxdesc(hw, skb, (u8 *)buffer_desc, rxring_idx, - rtlpci->rx_ring[rxring_idx].idx); + rtlpci->rx_ring[rxring_idx].idx); } else { - _rtl_pci_init_one_rxdesc(hw, (u8 *)pdesc, rxring_idx, + _rtl_pci_init_one_rxdesc(hw, skb, (u8 *)pdesc, + rxring_idx, rtlpci->rx_ring[rxring_idx].idx); - if (rtlpci->rx_ring[rxring_idx].idx == rtlpci->rxringcount - 1) rtlpriv->cfg->ops->set_desc(hw, (u8 *)pdesc, @@ -1307,7 +1323,7 @@ static int _rtl_pci_init_rx_ring(struct ieee80211_hw *hw, int rxring_idx) rtlpci->rx_ring[rxring_idx].idx = 0; for (i = 0; i < rtlpci->rxringcount; i++) { entry = &rtlpci->rx_ring[rxring_idx].buffer_desc[i]; - if (!_rtl_pci_init_one_rxdesc(hw, (u8 *)entry, + if (!_rtl_pci_init_one_rxdesc(hw, NULL, (u8 *)entry, rxring_idx, i)) return -ENOMEM; } @@ -1332,7 +1348,7 @@ static int _rtl_pci_init_rx_ring(struct ieee80211_hw *hw, int rxring_idx) for (i = 0; i < rtlpci->rxringcount; i++) { entry = &rtlpci->rx_ring[rxring_idx].desc[i]; - if (!_rtl_pci_init_one_rxdesc(hw, (u8 *)entry, + if (!_rtl_pci_init_one_rxdesc(hw, NULL, (u8 *)entry, rxring_idx, i)) return -ENOMEM; } diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c index efbaf2a..794204e 100644 --- a/drivers/net/xen-netback/xenbus.c +++ b/drivers/net/xen-netback/xenbus.c @@ -737,6 +737,7 @@ static void connect(struct backend_info *be) } queue->remaining_credit = credit_bytes; + queue->credit_usec = credit_usec; err = connect_rings(be, queue); if (err) { diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index 22bcb4e..d8c1076 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -88,10 +88,8 @@ struct netfront_cb { #define IRQ_NAME_SIZE (QUEUE_NAME_SIZE + 3) struct netfront_stats { - u64 rx_packets; - u64 tx_packets; - u64 rx_bytes; - u64 tx_bytes; + u64 packets; + u64 bytes; struct u64_stats_sync syncp; }; @@ -160,7 +158,8 @@ struct netfront_info { struct netfront_queue *queues; /* Statistics */ - struct netfront_stats __percpu *stats; + struct netfront_stats __percpu *rx_stats; + struct netfront_stats __percpu *tx_stats; atomic_t rx_gso_checksum_fixup; }; @@ -565,7 +564,7 @@ static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev) { unsigned short id; struct netfront_info *np = netdev_priv(dev); - struct netfront_stats *stats = this_cpu_ptr(np->stats); + struct netfront_stats *tx_stats = this_cpu_ptr(np->tx_stats); struct xen_netif_tx_request *tx; char *data = skb->data; RING_IDX i; @@ -672,10 +671,10 @@ static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev) if (notify) notify_remote_via_irq(queue->tx_irq); - u64_stats_update_begin(&stats->syncp); - stats->tx_bytes += skb->len; - stats->tx_packets++; - u64_stats_update_end(&stats->syncp); + u64_stats_update_begin(&tx_stats->syncp); + tx_stats->bytes += skb->len; + tx_stats->packets++; + u64_stats_update_end(&tx_stats->syncp); /* Note: It is not safe to access skb after xennet_tx_buf_gc()! */ xennet_tx_buf_gc(queue); @@ -931,7 +930,7 @@ static int checksum_setup(struct net_device *dev, struct sk_buff *skb) static int handle_incoming_queue(struct netfront_queue *queue, struct sk_buff_head *rxq) { - struct netfront_stats *stats = this_cpu_ptr(queue->info->stats); + struct netfront_stats *rx_stats = this_cpu_ptr(queue->info->rx_stats); int packets_dropped = 0; struct sk_buff *skb; @@ -952,10 +951,10 @@ static int handle_incoming_queue(struct netfront_queue *queue, continue; } - u64_stats_update_begin(&stats->syncp); - stats->rx_packets++; - stats->rx_bytes += skb->len; - u64_stats_update_end(&stats->syncp); + u64_stats_update_begin(&rx_stats->syncp); + rx_stats->packets++; + rx_stats->bytes += skb->len; + u64_stats_update_end(&rx_stats->syncp); /* Pass it up. */ napi_gro_receive(&queue->napi, skb); @@ -1079,18 +1078,22 @@ static struct rtnl_link_stats64 *xennet_get_stats64(struct net_device *dev, int cpu; for_each_possible_cpu(cpu) { - struct netfront_stats *stats = per_cpu_ptr(np->stats, cpu); + struct netfront_stats *rx_stats = per_cpu_ptr(np->rx_stats, cpu); + struct netfront_stats *tx_stats = per_cpu_ptr(np->tx_stats, cpu); u64 rx_packets, rx_bytes, tx_packets, tx_bytes; unsigned int start; do { - start = u64_stats_fetch_begin_irq(&stats->syncp); + start = u64_stats_fetch_begin_irq(&tx_stats->syncp); + tx_packets = tx_stats->packets; + tx_bytes = tx_stats->bytes; + } while (u64_stats_fetch_retry_irq(&tx_stats->syncp, start)); - rx_packets = stats->rx_packets; - tx_packets = stats->tx_packets; - rx_bytes = stats->rx_bytes; - tx_bytes = stats->tx_bytes; - } while (u64_stats_fetch_retry_irq(&stats->syncp, start)); + do { + start = u64_stats_fetch_begin_irq(&rx_stats->syncp); + rx_packets = rx_stats->packets; + rx_bytes = rx_stats->bytes; + } while (u64_stats_fetch_retry_irq(&rx_stats->syncp, start)); tot->rx_packets += rx_packets; tot->tx_packets += tx_packets; @@ -1275,6 +1278,15 @@ static const struct net_device_ops xennet_netdev_ops = { #endif }; +static void xennet_free_netdev(struct net_device *netdev) +{ + struct netfront_info *np = netdev_priv(netdev); + + free_percpu(np->rx_stats); + free_percpu(np->tx_stats); + free_netdev(netdev); +} + static struct net_device *xennet_create_dev(struct xenbus_device *dev) { int err; @@ -1295,8 +1307,11 @@ static struct net_device *xennet_create_dev(struct xenbus_device *dev) np->queues = NULL; err = -ENOMEM; - np->stats = netdev_alloc_pcpu_stats(struct netfront_stats); - if (np->stats == NULL) + np->rx_stats = netdev_alloc_pcpu_stats(struct netfront_stats); + if (np->rx_stats == NULL) + goto exit; + np->tx_stats = netdev_alloc_pcpu_stats(struct netfront_stats); + if (np->tx_stats == NULL) goto exit; netdev->netdev_ops = &xennet_netdev_ops; @@ -1327,7 +1342,7 @@ static struct net_device *xennet_create_dev(struct xenbus_device *dev) return netdev; exit: - free_netdev(netdev); + xennet_free_netdev(netdev); return ERR_PTR(err); } @@ -1369,7 +1384,7 @@ static int netfront_probe(struct xenbus_device *dev, return 0; fail: - free_netdev(netdev); + xennet_free_netdev(netdev); dev_set_drvdata(&dev->dev, NULL); return err; } @@ -2189,9 +2204,7 @@ static int xennet_remove(struct xenbus_device *dev) info->queues = NULL; } - free_percpu(info->stats); - - free_netdev(info->netdev); + xennet_free_netdev(info->netdev); return 0; } diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c index ba74f0a..3c22dbe 100644 --- a/drivers/pinctrl/pinctrl-rockchip.c +++ b/drivers/pinctrl/pinctrl-rockchip.c @@ -89,6 +89,7 @@ struct rockchip_iomux { * @reg_pull: optional separate register for additional pull settings * @clk: clock of the gpio bank * @irq: interrupt of the gpio bank + * @saved_enables: Saved content of GPIO_INTEN at suspend time. * @pin_base: first pin number * @nr_pins: number of pins in this bank * @name: name of the bank @@ -107,6 +108,7 @@ struct rockchip_pin_bank { struct regmap *regmap_pull; struct clk *clk; int irq; + u32 saved_enables; u32 pin_base; u8 nr_pins; char *name; @@ -1543,6 +1545,51 @@ static int rockchip_irq_set_type(struct irq_data *d, unsigned int type) return 0; } +static void rockchip_irq_suspend(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct rockchip_pin_bank *bank = gc->private; + + bank->saved_enables = irq_reg_readl(gc, GPIO_INTEN); + irq_reg_writel(gc, gc->wake_active, GPIO_INTEN); +} + +static void rockchip_irq_resume(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct rockchip_pin_bank *bank = gc->private; + + irq_reg_writel(gc, bank->saved_enables, GPIO_INTEN); +} + +static void rockchip_irq_disable(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + u32 val; + + irq_gc_lock(gc); + + val = irq_reg_readl(gc, GPIO_INTEN); + val &= ~d->mask; + irq_reg_writel(gc, val, GPIO_INTEN); + + irq_gc_unlock(gc); +} + +static void rockchip_irq_enable(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + u32 val; + + irq_gc_lock(gc); + + val = irq_reg_readl(gc, GPIO_INTEN); + val |= d->mask; + irq_reg_writel(gc, val, GPIO_INTEN); + + irq_gc_unlock(gc); +} + static int rockchip_interrupts_register(struct platform_device *pdev, struct rockchip_pinctrl *info) { @@ -1581,12 +1628,16 @@ static int rockchip_interrupts_register(struct platform_device *pdev, gc = irq_get_domain_generic_chip(bank->domain, 0); gc->reg_base = bank->reg_base; gc->private = bank; - gc->chip_types[0].regs.mask = GPIO_INTEN; + gc->chip_types[0].regs.mask = GPIO_INTMASK; gc->chip_types[0].regs.ack = GPIO_PORTS_EOI; gc->chip_types[0].chip.irq_ack = irq_gc_ack_set_bit; - gc->chip_types[0].chip.irq_mask = irq_gc_mask_clr_bit; - gc->chip_types[0].chip.irq_unmask = irq_gc_mask_set_bit; + gc->chip_types[0].chip.irq_mask = irq_gc_mask_set_bit; + gc->chip_types[0].chip.irq_unmask = irq_gc_mask_clr_bit; + gc->chip_types[0].chip.irq_enable = rockchip_irq_enable; + gc->chip_types[0].chip.irq_disable = rockchip_irq_disable; gc->chip_types[0].chip.irq_set_wake = irq_gc_set_wake; + gc->chip_types[0].chip.irq_suspend = rockchip_irq_suspend; + gc->chip_types[0].chip.irq_resume = rockchip_irq_resume; gc->chip_types[0].chip.irq_set_type = rockchip_irq_set_type; gc->wake_enabled = IRQ_MSK(bank->nr_pins); diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c index 7c9d513..9e5ec00 100644 --- a/drivers/pinctrl/pinctrl-st.c +++ b/drivers/pinctrl/pinctrl-st.c @@ -1012,8 +1012,10 @@ static void st_pinconf_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s, unsigned pin_id) { unsigned long config; - st_pinconf_get(pctldev, pin_id, &config); + mutex_unlock(&pctldev->mutex); + st_pinconf_get(pctldev, pin_id, &config); + mutex_lock(&pctldev->mutex); seq_printf(s, "[OE:%ld,PU:%ld,OD:%ld]\n" "\t\t[retime:%ld,invclk:%ld,clknotdat:%ld," "de:%ld,rt-clk:%ld,rt-delay:%ld]", @@ -1443,6 +1445,7 @@ static struct gpio_chip st_gpio_template = { static struct irq_chip st_gpio_irqchip = { .name = "GPIO", + .irq_disable = st_gpio_irq_mask, .irq_mask = st_gpio_irq_mask, .irq_unmask = st_gpio_irq_unmask, .irq_set_type = st_gpio_irq_set_type, diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 91e97ec..4d41bf7 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -1163,9 +1163,13 @@ static inline int ap_test_config_card_id(unsigned int id) */ static inline int ap_test_config_domain(unsigned int domain) { - if (!ap_configuration) - return 1; - return ap_test_config(ap_configuration->aqm, domain); + if (!ap_configuration) /* QCI not supported */ + if (domain < 16) + return 1; /* then domains 0...15 are configured */ + else + return 0; + else + return ap_test_config(ap_configuration->aqm, domain); } /** diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 12ca291..cce1cbc 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -734,7 +734,9 @@ qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) * Return target busy if we've received a non-zero retry_delay_timer * in a FCP_RSP. */ - if (time_after(jiffies, fcport->retry_delay_timestamp)) + if (fcport->retry_delay_timestamp == 0) { + /* retry delay not set */ + } else if (time_after(jiffies, fcport->retry_delay_timestamp)) fcport->retry_delay_timestamp = 0; else goto qc24_target_busy; diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 55f6774..aebde32 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -2027,10 +2027,10 @@ iscsit_process_text_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd, goto reject; } if (!strncmp("=All", text_ptr, 4)) { - cmd->cmd_flags |= IFC_SENDTARGETS_ALL; + cmd->cmd_flags |= ICF_SENDTARGETS_ALL; } else if (!strncmp("=iqn.", text_ptr, 5) || !strncmp("=eui.", text_ptr, 5)) { - cmd->cmd_flags |= IFC_SENDTARGETS_SINGLE; + cmd->cmd_flags |= ICF_SENDTARGETS_SINGLE; } else { pr_err("Unable to locate valid SendTargets=%s value\n", text_ptr); goto reject; @@ -3415,10 +3415,10 @@ iscsit_build_sendtargets_response(struct iscsi_cmd *cmd, return -ENOMEM; } /* - * Locate pointer to iqn./eui. string for IFC_SENDTARGETS_SINGLE + * Locate pointer to iqn./eui. string for ICF_SENDTARGETS_SINGLE * explicit case.. */ - if (cmd->cmd_flags & IFC_SENDTARGETS_SINGLE) { + if (cmd->cmd_flags & ICF_SENDTARGETS_SINGLE) { text_ptr = strchr(text_in, '='); if (!text_ptr) { pr_err("Unable to locate '=' string in text_in:" @@ -3434,7 +3434,7 @@ iscsit_build_sendtargets_response(struct iscsi_cmd *cmd, spin_lock(&tiqn_lock); list_for_each_entry(tiqn, &g_tiqn_list, tiqn_list) { - if ((cmd->cmd_flags & IFC_SENDTARGETS_SINGLE) && + if ((cmd->cmd_flags & ICF_SENDTARGETS_SINGLE) && strcmp(tiqn->tiqn, text_ptr)) { continue; } @@ -3512,7 +3512,7 @@ eob: if (end_of_buf) break; - if (cmd->cmd_flags & IFC_SENDTARGETS_SINGLE) + if (cmd->cmd_flags & ICF_SENDTARGETS_SINGLE) break; } spin_unlock(&tiqn_lock); diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h index 09a522b..cbcff38 100644 --- a/drivers/target/iscsi/iscsi_target_core.h +++ b/drivers/target/iscsi/iscsi_target_core.h @@ -135,8 +135,8 @@ enum cmd_flags_table { ICF_CONTIG_MEMORY = 0x00000020, ICF_ATTACHED_TO_RQUEUE = 0x00000040, ICF_OOO_CMDSN = 0x00000080, - IFC_SENDTARGETS_ALL = 0x00000100, - IFC_SENDTARGETS_SINGLE = 0x00000200, + ICF_SENDTARGETS_ALL = 0x00000100, + ICF_SENDTARGETS_SINGLE = 0x00000200, }; /* struct iscsi_cmd->i_state */ diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 7653cfb..58f49ff 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -1103,51 +1103,6 @@ int se_dev_set_queue_depth(struct se_device *dev, u32 queue_depth) } EXPORT_SYMBOL(se_dev_set_queue_depth); -int se_dev_set_fabric_max_sectors(struct se_device *dev, u32 fabric_max_sectors) -{ - int block_size = dev->dev_attrib.block_size; - - if (dev->export_count) { - pr_err("dev[%p]: Unable to change SE Device" - " fabric_max_sectors while export_count is %d\n", - dev, dev->export_count); - return -EINVAL; - } - if (!fabric_max_sectors) { - pr_err("dev[%p]: Illegal ZERO value for" - " fabric_max_sectors\n", dev); - return -EINVAL; - } - if (fabric_max_sectors < DA_STATUS_MAX_SECTORS_MIN) { - pr_err("dev[%p]: Passed fabric_max_sectors: %u less than" - " DA_STATUS_MAX_SECTORS_MIN: %u\n", dev, fabric_max_sectors, - DA_STATUS_MAX_SECTORS_MIN); - return -EINVAL; - } - if (fabric_max_sectors > DA_STATUS_MAX_SECTORS_MAX) { - pr_err("dev[%p]: Passed fabric_max_sectors: %u" - " greater than DA_STATUS_MAX_SECTORS_MAX:" - " %u\n", dev, fabric_max_sectors, - DA_STATUS_MAX_SECTORS_MAX); - return -EINVAL; - } - /* - * Align max_sectors down to PAGE_SIZE to follow transport_allocate_data_tasks() - */ - if (!block_size) { - block_size = 512; - pr_warn("Defaulting to 512 for zero block_size\n"); - } - fabric_max_sectors = se_dev_align_max_sectors(fabric_max_sectors, - block_size); - - dev->dev_attrib.fabric_max_sectors = fabric_max_sectors; - pr_debug("dev[%p]: SE Device max_sectors changed to %u\n", - dev, fabric_max_sectors); - return 0; -} -EXPORT_SYMBOL(se_dev_set_fabric_max_sectors); - int se_dev_set_optimal_sectors(struct se_device *dev, u32 optimal_sectors) { if (dev->export_count) { @@ -1156,10 +1111,10 @@ int se_dev_set_optimal_sectors(struct se_device *dev, u32 optimal_sectors) dev, dev->export_count); return -EINVAL; } - if (optimal_sectors > dev->dev_attrib.fabric_max_sectors) { + if (optimal_sectors > dev->dev_attrib.hw_max_sectors) { pr_err("dev[%p]: Passed optimal_sectors %u cannot be" - " greater than fabric_max_sectors: %u\n", dev, - optimal_sectors, dev->dev_attrib.fabric_max_sectors); + " greater than hw_max_sectors: %u\n", dev, + optimal_sectors, dev->dev_attrib.hw_max_sectors); return -EINVAL; } @@ -1553,8 +1508,6 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name) dev->dev_attrib.unmap_granularity_alignment = DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT; dev->dev_attrib.max_write_same_len = DA_MAX_WRITE_SAME_LEN; - dev->dev_attrib.fabric_max_sectors = DA_FABRIC_MAX_SECTORS; - dev->dev_attrib.optimal_sectors = DA_FABRIC_MAX_SECTORS; xcopy_lun = &dev->xcopy_lun; xcopy_lun->lun_se_dev = dev; @@ -1595,6 +1548,7 @@ int target_configure_device(struct se_device *dev) dev->dev_attrib.hw_max_sectors = se_dev_align_max_sectors(dev->dev_attrib.hw_max_sectors, dev->dev_attrib.hw_block_size); + dev->dev_attrib.optimal_sectors = dev->dev_attrib.hw_max_sectors; dev->dev_index = scsi_get_new_index(SCSI_DEVICE_INDEX); dev->creation_time = get_jiffies_64(); diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index c2aea09..d836de2 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -621,7 +621,16 @@ fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, struct fd_prot fd_prot; sense_reason_t rc; int ret = 0; - + /* + * We are currently limited by the number of iovecs (2048) per + * single vfs_[writev,readv] call. + */ + if (cmd->data_length > FD_MAX_BYTES) { + pr_err("FILEIO: Not able to process I/O of %u bytes due to" + "FD_MAX_BYTES: %u iovec count limitiation\n", + cmd->data_length, FD_MAX_BYTES); + return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; + } /* * Call vectorized fileio functions to map struct scatterlist * physical memory addresses to struct iovec virtual memory. @@ -959,7 +968,6 @@ static struct configfs_attribute *fileio_backend_dev_attrs[] = { &fileio_dev_attrib_hw_block_size.attr, &fileio_dev_attrib_block_size.attr, &fileio_dev_attrib_hw_max_sectors.attr, - &fileio_dev_attrib_fabric_max_sectors.attr, &fileio_dev_attrib_optimal_sectors.attr, &fileio_dev_attrib_hw_queue_depth.attr, &fileio_dev_attrib_queue_depth.attr, diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index 3efff94..78346b8 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -124,7 +124,7 @@ static int iblock_configure_device(struct se_device *dev) q = bdev_get_queue(bd); dev->dev_attrib.hw_block_size = bdev_logical_block_size(bd); - dev->dev_attrib.hw_max_sectors = UINT_MAX; + dev->dev_attrib.hw_max_sectors = queue_max_hw_sectors(q); dev->dev_attrib.hw_queue_depth = q->nr_requests; /* @@ -883,7 +883,6 @@ static struct configfs_attribute *iblock_backend_dev_attrs[] = { &iblock_dev_attrib_hw_block_size.attr, &iblock_dev_attrib_block_size.attr, &iblock_dev_attrib_hw_max_sectors.attr, - &iblock_dev_attrib_fabric_max_sectors.attr, &iblock_dev_attrib_optimal_sectors.attr, &iblock_dev_attrib_hw_queue_depth.attr, &iblock_dev_attrib_queue_depth.attr, diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index d56f2aa..283cf78 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -528,6 +528,18 @@ static int core_scsi3_pr_seq_non_holder( return 0; } + } else if (we && registered_nexus) { + /* + * Reads are allowed for Write Exclusive locks + * from all registrants. + */ + if (cmd->data_direction == DMA_FROM_DEVICE) { + pr_debug("Allowing READ CDB: 0x%02x for %s" + " reservation\n", cdb[0], + core_scsi3_pr_dump_type(pr_reg_type)); + + return 0; + } } pr_debug("%s Conflict for %sregistered nexus %s CDB: 0x%2x" " for %s reservation\n", transport_dump_cmd_direction(cmd), diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c index 60ebd17..98e83ac 100644 --- a/drivers/target/target_core_rd.c +++ b/drivers/target/target_core_rd.c @@ -657,7 +657,6 @@ static struct configfs_attribute *rd_mcp_backend_dev_attrs[] = { &rd_mcp_dev_attrib_hw_block_size.attr, &rd_mcp_dev_attrib_block_size.attr, &rd_mcp_dev_attrib_hw_max_sectors.attr, - &rd_mcp_dev_attrib_fabric_max_sectors.attr, &rd_mcp_dev_attrib_optimal_sectors.attr, &rd_mcp_dev_attrib_hw_queue_depth.attr, &rd_mcp_dev_attrib_queue_depth.attr, diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c index 11bea19..cd4bed7 100644 --- a/drivers/target/target_core_sbc.c +++ b/drivers/target/target_core_sbc.c @@ -953,21 +953,6 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) if (cmd->se_cmd_flags & SCF_SCSI_DATA_CDB) { unsigned long long end_lba; - - if (sectors > dev->dev_attrib.fabric_max_sectors) { - printk_ratelimited(KERN_ERR "SCSI OP %02xh with too" - " big sectors %u exceeds fabric_max_sectors:" - " %u\n", cdb[0], sectors, - dev->dev_attrib.fabric_max_sectors); - return TCM_INVALID_CDB_FIELD; - } - if (sectors > dev->dev_attrib.hw_max_sectors) { - printk_ratelimited(KERN_ERR "SCSI OP %02xh with too" - " big sectors %u exceeds backend hw_max_sectors:" - " %u\n", cdb[0], sectors, - dev->dev_attrib.hw_max_sectors); - return TCM_INVALID_CDB_FIELD; - } check_lba: end_lba = dev->transport->get_blocks(dev) + 1; if (cmd->t_task_lba + sectors > end_lba) { diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index 1307600..4c71657 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -505,7 +505,6 @@ static sense_reason_t spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) { struct se_device *dev = cmd->se_dev; - u32 max_sectors; int have_tp = 0; int opt, min; @@ -539,9 +538,7 @@ spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) /* * Set MAXIMUM TRANSFER LENGTH */ - max_sectors = min(dev->dev_attrib.fabric_max_sectors, - dev->dev_attrib.hw_max_sectors); - put_unaligned_be32(max_sectors, &buf[8]); + put_unaligned_be32(dev->dev_attrib.hw_max_sectors, &buf[8]); /* * Set OPTIMAL TRANSFER LENGTH diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index 8bfa61c..1157b55 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -1118,7 +1118,6 @@ static struct configfs_attribute *tcmu_backend_dev_attrs[] = { &tcmu_dev_attrib_hw_block_size.attr, &tcmu_dev_attrib_block_size.attr, &tcmu_dev_attrib_hw_max_sectors.attr, - &tcmu_dev_attrib_fabric_max_sectors.attr, &tcmu_dev_attrib_optimal_sectors.attr, &tcmu_dev_attrib_hw_queue_depth.attr, &tcmu_dev_attrib_queue_depth.attr, diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c index c1188ac..2ccbc07 100644 --- a/drivers/thermal/imx_thermal.c +++ b/drivers/thermal/imx_thermal.c @@ -608,6 +608,7 @@ static int imx_thermal_suspend(struct device *dev) regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_MEASURE_TEMP); regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_POWER_DOWN); data->mode = THERMAL_DEVICE_DISABLED; + clk_disable_unprepare(data->thermal_clk); return 0; } @@ -617,6 +618,7 @@ static int imx_thermal_resume(struct device *dev) struct imx_thermal_data *data = dev_get_drvdata(dev); struct regmap *map = data->tempmon; + clk_prepare_enable(data->thermal_clk); /* Enabled thermal sensor after resume */ regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_POWER_DOWN); regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_MEASURE_TEMP); diff --git a/drivers/thermal/int340x_thermal/acpi_thermal_rel.c b/drivers/thermal/int340x_thermal/acpi_thermal_rel.c index 231cabc..2c2ec76 100644 --- a/drivers/thermal/int340x_thermal/acpi_thermal_rel.c +++ b/drivers/thermal/int340x_thermal/acpi_thermal_rel.c @@ -119,15 +119,11 @@ int acpi_parse_trt(acpi_handle handle, int *trt_count, struct trt **trtp, continue; result = acpi_bus_get_device(trt->source, &adev); - if (!result) - acpi_create_platform_device(adev); - else + if (result) pr_warn("Failed to get source ACPI device\n"); result = acpi_bus_get_device(trt->target, &adev); - if (!result) - acpi_create_platform_device(adev); - else + if (result) pr_warn("Failed to get target ACPI device\n"); } @@ -206,16 +202,12 @@ int acpi_parse_art(acpi_handle handle, int *art_count, struct art **artp, if (art->source) { result = acpi_bus_get_device(art->source, &adev); - if (!result) - acpi_create_platform_device(adev); - else + if (result) pr_warn("Failed to get source ACPI device\n"); } if (art->target) { result = acpi_bus_get_device(art->target, &adev); - if (!result) - acpi_create_platform_device(adev); - else + if (result) pr_warn("Failed to get source ACPI device\n"); } } diff --git a/drivers/thermal/int340x_thermal/processor_thermal_device.c b/drivers/thermal/int340x_thermal/processor_thermal_device.c index 31bb553..0fe5dbb 100644 --- a/drivers/thermal/int340x_thermal/processor_thermal_device.c +++ b/drivers/thermal/int340x_thermal/processor_thermal_device.c @@ -130,6 +130,8 @@ static int proc_thermal_add(struct device *dev, int ret; adev = ACPI_COMPANION(dev); + if (!adev) + return -ENODEV; status = acpi_evaluate_object(adev->handle, "PPCC", NULL, &buf); if (ACPI_FAILURE(status)) diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c index e145b66..d717f3d 100644 --- a/drivers/thermal/of-thermal.c +++ b/drivers/thermal/of-thermal.c @@ -149,7 +149,7 @@ EXPORT_SYMBOL_GPL(of_thermal_is_trip_valid); * * Return: pointer to trip points table, NULL otherwise */ -const struct thermal_trip * const +const struct thermal_trip * of_thermal_get_trip_points(struct thermal_zone_device *tz) { struct __thermal_zone *data = tz->devdata; diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c index 8803e69..2580a48 100644 --- a/drivers/thermal/rcar_thermal.c +++ b/drivers/thermal/rcar_thermal.c @@ -63,7 +63,7 @@ struct rcar_thermal_priv { struct mutex lock; struct list_head list; int id; - int ctemp; + u32 ctemp; }; #define rcar_thermal_for_each_priv(pos, common) \ @@ -145,7 +145,7 @@ static int rcar_thermal_update_temp(struct rcar_thermal_priv *priv) { struct device *dev = rcar_priv_to_dev(priv); int i; - int ctemp, old, new; + u32 ctemp, old, new; int ret = -EINVAL; mutex_lock(&priv->lock); @@ -372,6 +372,7 @@ static int rcar_thermal_probe(struct platform_device *pdev) int i; int ret = -ENODEV; int idle = IDLE_INTERVAL; + u32 enr_bits = 0; common = devm_kzalloc(dev, sizeof(*common), GFP_KERNEL); if (!common) @@ -390,7 +391,7 @@ static int rcar_thermal_probe(struct platform_device *pdev) /* * platform has IRQ support. - * Then, drier use common register + * Then, driver uses common registers */ ret = devm_request_irq(dev, irq->start, rcar_thermal_irq, 0, @@ -408,9 +409,6 @@ static int rcar_thermal_probe(struct platform_device *pdev) if (IS_ERR(common->base)) return PTR_ERR(common->base); - /* enable temperature comparation */ - rcar_thermal_common_write(common, ENR, 0x00030303); - idle = 0; /* polling delay is not needed */ } @@ -452,8 +450,15 @@ static int rcar_thermal_probe(struct platform_device *pdev) rcar_thermal_irq_enable(priv); list_move_tail(&priv->list, &common->head); + + /* update ENR bits */ + enr_bits |= 3 << (i * 8); } + /* enable temperature comparation */ + if (irq) + rcar_thermal_common_write(common, ENR, enr_bits); + platform_set_drvdata(pdev, common); dev_info(dev, "%d sensor probed\n", i); diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h index 9083e75..0531c75 100644 --- a/drivers/thermal/thermal_core.h +++ b/drivers/thermal/thermal_core.h @@ -91,7 +91,7 @@ int of_parse_thermal_zones(void); void of_thermal_destroy_zones(void); int of_thermal_get_ntrips(struct thermal_zone_device *); bool of_thermal_is_trip_valid(struct thermal_zone_device *, int); -const struct thermal_trip * const +const struct thermal_trip * of_thermal_get_trip_points(struct thermal_zone_device *); #else static inline int of_parse_thermal_zones(void) { return 0; } @@ -105,7 +105,7 @@ static inline bool of_thermal_is_trip_valid(struct thermal_zone_device *tz, { return 0; } -static inline const struct thermal_trip * const +static inline const struct thermal_trip * of_thermal_get_trip_points(struct thermal_zone_device *tz) { return NULL; diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c index 255201f..7cc0122 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -840,13 +840,11 @@ static const struct vfio_device_ops vfio_pci_ops = { static int vfio_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { - u8 type; struct vfio_pci_device *vdev; struct iommu_group *group; int ret; - pci_read_config_byte(pdev, PCI_HEADER_TYPE, &type); - if ((type & PCI_HEADER_TYPE) != PCI_HEADER_TYPE_NORMAL) + if (pdev->hdr_type != PCI_HEADER_TYPE_NORMAL) return -EINVAL; group = iommu_group_get(&pdev->dev); diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 14419a8..d415d69 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -538,7 +538,7 @@ static int get_rx_bufs(struct vhost_virtqueue *vq, ++headcount; seg += in; } - heads[headcount - 1].len = cpu_to_vhost32(vq, len - datalen); + heads[headcount - 1].len = cpu_to_vhost32(vq, len + datalen); *iovcount = seg; if (unlikely(log)) *log_num = nlogs; diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index 01c01cb..d695b16 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -911,6 +911,23 @@ vhost_scsi_map_iov_to_prot(struct tcm_vhost_cmd *cmd, return 0; } +static int vhost_scsi_to_tcm_attr(int attr) +{ + switch (attr) { + case VIRTIO_SCSI_S_SIMPLE: + return TCM_SIMPLE_TAG; + case VIRTIO_SCSI_S_ORDERED: + return TCM_ORDERED_TAG; + case VIRTIO_SCSI_S_HEAD: + return TCM_HEAD_TAG; + case VIRTIO_SCSI_S_ACA: + return TCM_ACA_TAG; + default: + break; + } + return TCM_SIMPLE_TAG; +} + static void tcm_vhost_submission_work(struct work_struct *work) { struct tcm_vhost_cmd *cmd = @@ -936,9 +953,10 @@ static void tcm_vhost_submission_work(struct work_struct *work) rc = target_submit_cmd_map_sgls(se_cmd, tv_nexus->tvn_se_sess, cmd->tvc_cdb, &cmd->tvc_sense_buf[0], cmd->tvc_lun, cmd->tvc_exp_data_len, - cmd->tvc_task_attr, cmd->tvc_data_direction, - TARGET_SCF_ACK_KREF, sg_ptr, cmd->tvc_sgl_count, - NULL, 0, sg_prot_ptr, cmd->tvc_prot_sgl_count); + vhost_scsi_to_tcm_attr(cmd->tvc_task_attr), + cmd->tvc_data_direction, TARGET_SCF_ACK_KREF, + sg_ptr, cmd->tvc_sgl_count, NULL, 0, sg_prot_ptr, + cmd->tvc_prot_sgl_count); if (rc < 0) { transport_send_check_condition_and_sense(se_cmd, TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE, 0); diff --git a/drivers/video/fbdev/broadsheetfb.c b/drivers/video/fbdev/broadsheetfb.c index 1c29bd1..0e5fde1 100644 --- a/drivers/video/fbdev/broadsheetfb.c +++ b/drivers/video/fbdev/broadsheetfb.c @@ -636,7 +636,7 @@ static int broadsheet_spiflash_rewrite_sector(struct broadsheetfb_par *par, err = broadsheet_spiflash_read_range(par, start_sector_addr, data_start_addr, sector_buffer); if (err) - return err; + goto out; } /* now we copy our data into the right place in the sector buffer */ @@ -657,7 +657,7 @@ static int broadsheet_spiflash_rewrite_sector(struct broadsheetfb_par *par, err = broadsheet_spiflash_read_range(par, tail_start_addr, tail_len, sector_buffer + tail_start_addr); if (err) - return err; + goto out; } /* if we got here we have the full sector that we want to rewrite. */ @@ -665,11 +665,13 @@ static int broadsheet_spiflash_rewrite_sector(struct broadsheetfb_par *par, /* first erase the sector */ err = broadsheet_spiflash_erase_sector(par, start_sector_addr); if (err) - return err; + goto out; /* now write it */ err = broadsheet_spiflash_write_sector(par, start_sector_addr, sector_buffer, sector_size); +out: + kfree(sector_buffer); return err; } diff --git a/drivers/video/fbdev/simplefb.c b/drivers/video/fbdev/simplefb.c index 92cac80..1085c04 100644 --- a/drivers/video/fbdev/simplefb.c +++ b/drivers/video/fbdev/simplefb.c @@ -402,7 +402,7 @@ static int __init simplefb_init(void) if (ret) return ret; - if (IS_ENABLED(CONFIG_OF) && of_chosen) { + if (IS_ENABLED(CONFIG_OF_ADDRESS) && of_chosen) { for_each_child_of_node(of_chosen, np) { if (of_device_is_compatible(np, "simple-framebuffer")) of_platform_device_create(np, NULL, NULL); diff --git a/drivers/virtio/virtio_pci_common.c b/drivers/virtio/virtio_pci_common.c index 2ef9529..9756f21 100644 --- a/drivers/virtio/virtio_pci_common.c +++ b/drivers/virtio/virtio_pci_common.c @@ -282,6 +282,7 @@ void vp_del_vqs(struct virtio_device *vdev) vp_free_vectors(vdev); kfree(vp_dev->vqs); + vp_dev->vqs = NULL; } static int vp_try_to_find_vqs(struct virtio_device *vdev, unsigned nvqs, @@ -421,15 +422,6 @@ int vp_set_vq_affinity(struct virtqueue *vq, int cpu) return 0; } -void virtio_pci_release_dev(struct device *_d) -{ - /* - * No need for a release method as we allocate/free - * all devices together with the pci devices. - * Provide an empty one to avoid getting a warning from core. - */ -} - #ifdef CONFIG_PM_SLEEP static int virtio_pci_freeze(struct device *dev) { diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h index adddb64..5a49728 100644 --- a/drivers/virtio/virtio_pci_common.h +++ b/drivers/virtio/virtio_pci_common.h @@ -126,7 +126,6 @@ const char *vp_bus_name(struct virtio_device *vdev); * - ignore the affinity request if we're using INTX */ int vp_set_vq_affinity(struct virtqueue *vq, int cpu); -void virtio_pci_release_dev(struct device *); int virtio_pci_legacy_probe(struct pci_dev *pci_dev, const struct pci_device_id *id); diff --git a/drivers/virtio/virtio_pci_legacy.c b/drivers/virtio/virtio_pci_legacy.c index 6c76f0f..a5486e6 100644 --- a/drivers/virtio/virtio_pci_legacy.c +++ b/drivers/virtio/virtio_pci_legacy.c @@ -211,6 +211,17 @@ static const struct virtio_config_ops virtio_pci_config_ops = { .set_vq_affinity = vp_set_vq_affinity, }; +static void virtio_pci_release_dev(struct device *_d) +{ + struct virtio_device *vdev = dev_to_virtio(_d); + struct virtio_pci_device *vp_dev = to_vp_device(vdev); + + /* As struct device is a kobject, it's not safe to + * free the memory (including the reference counter itself) + * until it's release callback. */ + kfree(vp_dev); +} + /* the PCI probing function */ int virtio_pci_legacy_probe(struct pci_dev *pci_dev, const struct pci_device_id *id) @@ -302,5 +313,4 @@ void virtio_pci_legacy_remove(struct pci_dev *pci_dev) pci_iounmap(pci_dev, vp_dev->ioaddr); pci_release_regions(pci_dev); pci_disable_device(pci_dev); - kfree(vp_dev); } diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index 2d3e32e..8729cf6 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -1552,7 +1552,6 @@ int tree_backref_for_extent(unsigned long *ptr, struct extent_buffer *eb, { int ret; int type; - struct btrfs_tree_block_info *info; struct btrfs_extent_inline_ref *eiref; if (*ptr == (unsigned long)-1) @@ -1573,9 +1572,17 @@ int tree_backref_for_extent(unsigned long *ptr, struct extent_buffer *eb, } /* we can treat both ref types equally here */ - info = (struct btrfs_tree_block_info *)(ei + 1); *out_root = btrfs_extent_inline_ref_offset(eb, eiref); - *out_level = btrfs_tree_block_level(eb, info); + + if (key->type == BTRFS_EXTENT_ITEM_KEY) { + struct btrfs_tree_block_info *info; + + info = (struct btrfs_tree_block_info *)(ei + 1); + *out_level = btrfs_tree_block_level(eb, info); + } else { + ASSERT(key->type == BTRFS_METADATA_ITEM_KEY); + *out_level = (u8)key->offset; + } if (ret == 1) *ptr = (unsigned long)-1; diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c index 054577b..de4e70f 100644 --- a/fs/btrfs/delayed-inode.c +++ b/fs/btrfs/delayed-inode.c @@ -1857,6 +1857,14 @@ int btrfs_delayed_delete_inode_ref(struct inode *inode) { struct btrfs_delayed_node *delayed_node; + /* + * we don't do delayed inode updates during log recovery because it + * leads to enospc problems. This means we also can't do + * delayed inode refs + */ + if (BTRFS_I(inode)->root->fs_info->log_root_recovering) + return -EAGAIN; + delayed_node = btrfs_get_or_create_delayed_node(inode); if (IS_ERR(delayed_node)) return PTR_ERR(delayed_node); diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index a80b971..1511658 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3139,9 +3139,11 @@ static int write_one_cache_group(struct btrfs_trans_handle *trans, struct extent_buffer *leaf; ret = btrfs_search_slot(trans, extent_root, &cache->key, path, 0, 1); - if (ret < 0) + if (ret) { + if (ret > 0) + ret = -ENOENT; goto fail; - BUG_ON(ret); /* Corruption */ + } leaf = path->nodes[0]; bi = btrfs_item_ptr_offset(leaf, path->slots[0]); @@ -3149,11 +3151,9 @@ static int write_one_cache_group(struct btrfs_trans_handle *trans, btrfs_mark_buffer_dirty(leaf); btrfs_release_path(path); fail: - if (ret) { + if (ret) btrfs_abort_transaction(trans, root, ret); - return ret; - } - return 0; + return ret; } diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index e687bb0..8bf326a 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -6255,8 +6255,10 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) out_fail: btrfs_end_transaction(trans, root); - if (drop_on_err) + if (drop_on_err) { + inode_dec_link_count(inode); iput(inode); + } btrfs_balance_delayed_items(root); btrfs_btree_balance_dirty(root); return err; diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index f2bb13a..9e1569f 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -2607,9 +2607,9 @@ static int scrub_extent_for_parity(struct scrub_parity *sparity, ret = scrub_pages_for_parity(sparity, logical, l, physical, dev, flags, gen, mirror_num, have_csum ? csum : NULL); -skip: if (ret) return ret; +skip: len -= l; logical += l; physical += l; diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index f5013d9..c81c0e00 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -1416,7 +1416,7 @@ void ceph_fill_inline_data(struct inode *inode, struct page *locked_page, } } - dout("fill_inline_data %p %llx.%llx len %lu locked_page %p\n", + dout("fill_inline_data %p %llx.%llx len %zu locked_page %p\n", inode, ceph_vinop(inode), len, locked_page); if (len > 0) { diff --git a/fs/ceph/locks.c b/fs/ceph/locks.c index c35c5c6..06ea5cd 100644 --- a/fs/ceph/locks.c +++ b/fs/ceph/locks.c @@ -239,23 +239,21 @@ int ceph_flock(struct file *file, int cmd, struct file_lock *fl) return err; } -/** - * Must be called with lock_flocks() already held. Fills in the passed - * counter variables, so you can prepare pagelist metadata before calling - * ceph_encode_locks. +/* + * Fills in the passed counter variables, so you can prepare pagelist metadata + * before calling ceph_encode_locks. */ void ceph_count_locks(struct inode *inode, int *fcntl_count, int *flock_count) { - struct file_lock *lock; + struct file_lock_context *ctx; *fcntl_count = 0; *flock_count = 0; - for (lock = inode->i_flock; lock != NULL; lock = lock->fl_next) { - if (lock->fl_flags & FL_POSIX) - ++(*fcntl_count); - else if (lock->fl_flags & FL_FLOCK) - ++(*flock_count); + ctx = inode->i_flctx; + if (ctx) { + *fcntl_count = ctx->flc_posix_cnt; + *flock_count = ctx->flc_flock_cnt; } dout("counted %d flock locks and %d fcntl locks", *flock_count, *fcntl_count); @@ -271,6 +269,7 @@ int ceph_encode_locks_to_buffer(struct inode *inode, int num_fcntl_locks, int num_flock_locks) { struct file_lock *lock; + struct file_lock_context *ctx = inode->i_flctx; int err = 0; int seen_fcntl = 0; int seen_flock = 0; @@ -279,33 +278,34 @@ int ceph_encode_locks_to_buffer(struct inode *inode, dout("encoding %d flock and %d fcntl locks", num_flock_locks, num_fcntl_locks); - for (lock = inode->i_flock; lock != NULL; lock = lock->fl_next) { - if (lock->fl_flags & FL_POSIX) { - ++seen_fcntl; - if (seen_fcntl > num_fcntl_locks) { - err = -ENOSPC; - goto fail; - } - err = lock_to_ceph_filelock(lock, &flocks[l]); - if (err) - goto fail; - ++l; + if (!ctx) + return 0; + + spin_lock(&ctx->flc_lock); + list_for_each_entry(lock, &ctx->flc_flock, fl_list) { + ++seen_fcntl; + if (seen_fcntl > num_fcntl_locks) { + err = -ENOSPC; + goto fail; } + err = lock_to_ceph_filelock(lock, &flocks[l]); + if (err) + goto fail; + ++l; } - for (lock = inode->i_flock; lock != NULL; lock = lock->fl_next) { - if (lock->fl_flags & FL_FLOCK) { - ++seen_flock; - if (seen_flock > num_flock_locks) { - err = -ENOSPC; - goto fail; - } - err = lock_to_ceph_filelock(lock, &flocks[l]); - if (err) - goto fail; - ++l; + list_for_each_entry(lock, &ctx->flc_flock, fl_list) { + ++seen_flock; + if (seen_flock > num_flock_locks) { + err = -ENOSPC; + goto fail; } + err = lock_to_ceph_filelock(lock, &flocks[l]); + if (err) + goto fail; + ++l; } fail: + spin_unlock(&ctx->flc_lock); return err; } diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index d2171f4..5f62fb7 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -2700,20 +2700,16 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap, struct ceph_filelock *flocks; encode_again: - spin_lock(&inode->i_lock); ceph_count_locks(inode, &num_fcntl_locks, &num_flock_locks); - spin_unlock(&inode->i_lock); flocks = kmalloc((num_fcntl_locks+num_flock_locks) * sizeof(struct ceph_filelock), GFP_NOFS); if (!flocks) { err = -ENOMEM; goto out_free; } - spin_lock(&inode->i_lock); err = ceph_encode_locks_to_buffer(inode, flocks, num_fcntl_locks, num_flock_locks); - spin_unlock(&inode->i_lock); if (err) { kfree(flocks); if (err == -ENOSPC) diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 96b7e9b..8c2ca6f 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -1109,11 +1109,6 @@ cifs_push_mandatory_locks(struct cifsFileInfo *cfile) return rc; } -/* copied from fs/locks.c with a name change */ -#define cifs_for_each_lock(inode, lockp) \ - for (lockp = &inode->i_flock; *lockp != NULL; \ - lockp = &(*lockp)->fl_next) - struct lock_to_push { struct list_head llist; __u64 offset; @@ -1128,8 +1123,9 @@ cifs_push_posix_locks(struct cifsFileInfo *cfile) { struct inode *inode = cfile->dentry->d_inode; struct cifs_tcon *tcon = tlink_tcon(cfile->tlink); - struct file_lock *flock, **before; - unsigned int count = 0, i = 0; + struct file_lock *flock; + struct file_lock_context *flctx = inode->i_flctx; + unsigned int i; int rc = 0, xid, type; struct list_head locks_to_send, *el; struct lock_to_push *lck, *tmp; @@ -1137,21 +1133,17 @@ cifs_push_posix_locks(struct cifsFileInfo *cfile) xid = get_xid(); - spin_lock(&inode->i_lock); - cifs_for_each_lock(inode, before) { - if ((*before)->fl_flags & FL_POSIX) - count++; - } - spin_unlock(&inode->i_lock); + if (!flctx) + goto out; INIT_LIST_HEAD(&locks_to_send); /* - * Allocating count locks is enough because no FL_POSIX locks can be - * added to the list while we are holding cinode->lock_sem that + * Allocating flc_posix_cnt locks is enough because no FL_POSIX locks + * can be added to the list while we are holding cinode->lock_sem that * protects locking operations of this inode. */ - for (; i < count; i++) { + for (i = 0; i < flctx->flc_posix_cnt; i++) { lck = kmalloc(sizeof(struct lock_to_push), GFP_KERNEL); if (!lck) { rc = -ENOMEM; @@ -1161,11 +1153,8 @@ cifs_push_posix_locks(struct cifsFileInfo *cfile) } el = locks_to_send.next; - spin_lock(&inode->i_lock); - cifs_for_each_lock(inode, before) { - flock = *before; - if ((flock->fl_flags & FL_POSIX) == 0) - continue; + spin_lock(&flctx->flc_lock); + list_for_each_entry(flock, &flctx->flc_posix, fl_list) { if (el == &locks_to_send) { /* * The list ended. We don't have enough allocated @@ -1185,9 +1174,8 @@ cifs_push_posix_locks(struct cifsFileInfo *cfile) lck->length = length; lck->type = type; lck->offset = flock->fl_start; - el = el->next; } - spin_unlock(&inode->i_lock); + spin_unlock(&flctx->flc_lock); list_for_each_entry_safe(lck, tmp, &locks_to_send, llist) { int stored_rc; diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index e5d3ead..bed4308 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -5166,8 +5166,8 @@ int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, /* fallback to generic here if not in extents fmt */ if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) - return __generic_block_fiemap(inode, fieinfo, start, len, - ext4_get_block); + return generic_block_fiemap(inode, fieinfo, start, len, + ext4_get_block); if (fiemap_check_flags(fieinfo, EXT4_FIEMAP_FLAGS)) return -EBADR; diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 513c12c..8131be8 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -273,19 +273,24 @@ static int ext4_file_open(struct inode * inode, struct file * filp) * we determine this extent as a data or a hole according to whether the * page cache has data or not. */ -static int ext4_find_unwritten_pgoff(struct inode *inode, int whence, - loff_t endoff, loff_t *offset) +static int ext4_find_unwritten_pgoff(struct inode *inode, + int whence, + struct ext4_map_blocks *map, + loff_t *offset) { struct pagevec pvec; + unsigned int blkbits; pgoff_t index; pgoff_t end; + loff_t endoff; loff_t startoff; loff_t lastoff; int found = 0; + blkbits = inode->i_sb->s_blocksize_bits; startoff = *offset; lastoff = startoff; - + endoff = (loff_t)(map->m_lblk + map->m_len) << blkbits; index = startoff >> PAGE_CACHE_SHIFT; end = endoff >> PAGE_CACHE_SHIFT; @@ -403,144 +408,147 @@ out: static loff_t ext4_seek_data(struct file *file, loff_t offset, loff_t maxsize) { struct inode *inode = file->f_mapping->host; - struct fiemap_extent_info fie; - struct fiemap_extent ext[2]; - loff_t next; - int i, ret = 0; + struct ext4_map_blocks map; + struct extent_status es; + ext4_lblk_t start, last, end; + loff_t dataoff, isize; + int blkbits; + int ret = 0; mutex_lock(&inode->i_mutex); - if (offset >= inode->i_size) { + + isize = i_size_read(inode); + if (offset >= isize) { mutex_unlock(&inode->i_mutex); return -ENXIO; } - fie.fi_flags = 0; - fie.fi_extents_max = 2; - fie.fi_extents_start = (struct fiemap_extent __user *) &ext; - while (1) { - mm_segment_t old_fs = get_fs(); - - fie.fi_extents_mapped = 0; - memset(ext, 0, sizeof(*ext) * fie.fi_extents_max); - - set_fs(get_ds()); - ret = ext4_fiemap(inode, &fie, offset, maxsize - offset); - set_fs(old_fs); - if (ret) + + blkbits = inode->i_sb->s_blocksize_bits; + start = offset >> blkbits; + last = start; + end = isize >> blkbits; + dataoff = offset; + + do { + map.m_lblk = last; + map.m_len = end - last + 1; + ret = ext4_map_blocks(NULL, inode, &map, 0); + if (ret > 0 && !(map.m_flags & EXT4_MAP_UNWRITTEN)) { + if (last != start) + dataoff = (loff_t)last << blkbits; break; + } - /* No extents found, EOF */ - if (!fie.fi_extents_mapped) { - ret = -ENXIO; + /* + * If there is a delay extent at this offset, + * it will be as a data. + */ + ext4_es_find_delayed_extent_range(inode, last, last, &es); + if (es.es_len != 0 && in_range(last, es.es_lblk, es.es_len)) { + if (last != start) + dataoff = (loff_t)last << blkbits; break; } - for (i = 0; i < fie.fi_extents_mapped; i++) { - next = (loff_t)(ext[i].fe_length + ext[i].fe_logical); - if (offset < (loff_t)ext[i].fe_logical) - offset = (loff_t)ext[i].fe_logical; - /* - * If extent is not unwritten, then it contains valid - * data, mapped or delayed. - */ - if (!(ext[i].fe_flags & FIEMAP_EXTENT_UNWRITTEN)) - goto out; + /* + * If there is a unwritten extent at this offset, + * it will be as a data or a hole according to page + * cache that has data or not. + */ + if (map.m_flags & EXT4_MAP_UNWRITTEN) { + int unwritten; + unwritten = ext4_find_unwritten_pgoff(inode, SEEK_DATA, + &map, &dataoff); + if (unwritten) + break; + } - /* - * If there is a unwritten extent at this offset, - * it will be as a data or a hole according to page - * cache that has data or not. - */ - if (ext4_find_unwritten_pgoff(inode, SEEK_DATA, - next, &offset)) - goto out; + last++; + dataoff = (loff_t)last << blkbits; + } while (last <= end); - if (ext[i].fe_flags & FIEMAP_EXTENT_LAST) { - ret = -ENXIO; - goto out; - } - offset = next; - } - } - if (offset > inode->i_size) - offset = inode->i_size; -out: mutex_unlock(&inode->i_mutex); - if (ret) - return ret; - return vfs_setpos(file, offset, maxsize); + if (dataoff > isize) + return -ENXIO; + + return vfs_setpos(file, dataoff, maxsize); } /* - * ext4_seek_hole() retrieves the offset for SEEK_HOLE + * ext4_seek_hole() retrieves the offset for SEEK_HOLE. */ static loff_t ext4_seek_hole(struct file *file, loff_t offset, loff_t maxsize) { struct inode *inode = file->f_mapping->host; - struct fiemap_extent_info fie; - struct fiemap_extent ext[2]; - loff_t next; - int i, ret = 0; + struct ext4_map_blocks map; + struct extent_status es; + ext4_lblk_t start, last, end; + loff_t holeoff, isize; + int blkbits; + int ret = 0; mutex_lock(&inode->i_mutex); - if (offset >= inode->i_size) { + + isize = i_size_read(inode); + if (offset >= isize) { mutex_unlock(&inode->i_mutex); return -ENXIO; } - fie.fi_flags = 0; - fie.fi_extents_max = 2; - fie.fi_extents_start = (struct fiemap_extent __user *)&ext; - while (1) { - mm_segment_t old_fs = get_fs(); - - fie.fi_extents_mapped = 0; - memset(ext, 0, sizeof(*ext)); + blkbits = inode->i_sb->s_blocksize_bits; + start = offset >> blkbits; + last = start; + end = isize >> blkbits; + holeoff = offset; - set_fs(get_ds()); - ret = ext4_fiemap(inode, &fie, offset, maxsize - offset); - set_fs(old_fs); - if (ret) - break; + do { + map.m_lblk = last; + map.m_len = end - last + 1; + ret = ext4_map_blocks(NULL, inode, &map, 0); + if (ret > 0 && !(map.m_flags & EXT4_MAP_UNWRITTEN)) { + last += ret; + holeoff = (loff_t)last << blkbits; + continue; + } - /* No extents found */ - if (!fie.fi_extents_mapped) - break; + /* + * If there is a delay extent at this offset, + * we will skip this extent. + */ + ext4_es_find_delayed_extent_range(inode, last, last, &es); + if (es.es_len != 0 && in_range(last, es.es_lblk, es.es_len)) { + last = es.es_lblk + es.es_len; + holeoff = (loff_t)last << blkbits; + continue; + } - for (i = 0; i < fie.fi_extents_mapped; i++) { - next = (loff_t)(ext[i].fe_logical + ext[i].fe_length); - /* - * If extent is not unwritten, then it contains valid - * data, mapped or delayed. - */ - if (!(ext[i].fe_flags & FIEMAP_EXTENT_UNWRITTEN)) { - if (offset < (loff_t)ext[i].fe_logical) - goto out; - offset = next; + /* + * If there is a unwritten extent at this offset, + * it will be as a data or a hole according to page + * cache that has data or not. + */ + if (map.m_flags & EXT4_MAP_UNWRITTEN) { + int unwritten; + unwritten = ext4_find_unwritten_pgoff(inode, SEEK_HOLE, + &map, &holeoff); + if (!unwritten) { + last += ret; + holeoff = (loff_t)last << blkbits; continue; } - /* - * If there is a unwritten extent at this offset, - * it will be as a data or a hole according to page - * cache that has data or not. - */ - if (ext4_find_unwritten_pgoff(inode, SEEK_HOLE, - next, &offset)) - goto out; - - offset = next; - if (ext[i].fe_flags & FIEMAP_EXTENT_LAST) - goto out; } - } - if (offset > inode->i_size) - offset = inode->i_size; -out: + + /* find a hole */ + break; + } while (last <= end); + mutex_unlock(&inode->i_mutex); - if (ret) - return ret; - return vfs_setpos(file, offset, maxsize); + if (holeoff > isize) + holeoff = isize; + + return vfs_setpos(file, holeoff, maxsize); } /* diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index bf76f40..8a8ec62 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -24,6 +24,18 @@ int ext4_resize_begin(struct super_block *sb) return -EPERM; /* + * If we are not using the primary superblock/GDT copy don't resize, + * because the user tools have no way of handling this. Probably a + * bad time to do it anyways. + */ + if (EXT4_SB(sb)->s_sbh->b_blocknr != + le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) { + ext4_warning(sb, "won't resize using backup superblock at %llu", + (unsigned long long)EXT4_SB(sb)->s_sbh->b_blocknr); + return -EPERM; + } + + /* * We are not allowed to do online-resizing on a filesystem mounted * with error, because it can destroy the filesystem easily. */ @@ -758,18 +770,6 @@ static int add_new_gdb(handle_t *handle, struct inode *inode, "EXT4-fs: ext4_add_new_gdb: adding group block %lu\n", gdb_num); - /* - * If we are not using the primary superblock/GDT copy don't resize, - * because the user tools have no way of handling this. Probably a - * bad time to do it anyways. - */ - if (EXT4_SB(sb)->s_sbh->b_blocknr != - le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) { - ext4_warning(sb, "won't resize using backup superblock at %llu", - (unsigned long long)EXT4_SB(sb)->s_sbh->b_blocknr); - return -EPERM; - } - gdb_bh = sb_bread(sb, gdblock); if (!gdb_bh) return -EIO; diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 43c92b1..74c5f53 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3482,7 +3482,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) && EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_GDT_CSUM)) - ext4_warning(sb, KERN_INFO "metadata_csum and uninit_bg are " + ext4_warning(sb, "metadata_csum and uninit_bg are " "redundant flags; please run fsck."); /* Check for a known checksum algorithm */ @@ -740,14 +740,15 @@ static int __init fcntl_init(void) * Exceptions: O_NONBLOCK is a two bit define on parisc; O_NDELAY * is defined as O_NONBLOCK on some platforms and not on others. */ - BUILD_BUG_ON(20 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32( + BUILD_BUG_ON(21 - 1 /* for O_RDONLY being 0 */ != HWEIGHT32( O_RDONLY | O_WRONLY | O_RDWR | O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC | O_APPEND | /* O_NONBLOCK | */ __O_SYNC | O_DSYNC | FASYNC | O_DIRECT | O_LARGEFILE | O_DIRECTORY | O_NOFOLLOW | O_NOATIME | O_CLOEXEC | - __FMODE_EXEC | O_PATH | __O_TMPFILE + __FMODE_EXEC | O_PATH | __O_TMPFILE | + __FMODE_NONOTIFY )); fasync_cache = kmem_cache_create("fasync_cache", diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index ba11079..ed19a7d 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -131,6 +131,13 @@ static void fuse_req_init_context(struct fuse_req *req) req->in.h.pid = current->pid; } +void fuse_set_initialized(struct fuse_conn *fc) +{ + /* Make sure stores before this are seen on another CPU */ + smp_wmb(); + fc->initialized = 1; +} + static bool fuse_block_alloc(struct fuse_conn *fc, bool for_background) { return !fc->initialized || (for_background && fc->blocked); @@ -155,6 +162,8 @@ static struct fuse_req *__fuse_get_req(struct fuse_conn *fc, unsigned npages, if (intr) goto out; } + /* Matches smp_wmb() in fuse_set_initialized() */ + smp_rmb(); err = -ENOTCONN; if (!fc->connected) @@ -253,6 +262,8 @@ struct fuse_req *fuse_get_req_nofail_nopages(struct fuse_conn *fc, atomic_inc(&fc->num_waiting); wait_event(fc->blocked_waitq, fc->initialized); + /* Matches smp_wmb() in fuse_set_initialized() */ + smp_rmb(); req = fuse_request_alloc(0); if (!req) req = get_reserved_req(fc, file); @@ -511,6 +522,39 @@ void fuse_request_send(struct fuse_conn *fc, struct fuse_req *req) } EXPORT_SYMBOL_GPL(fuse_request_send); +static void fuse_adjust_compat(struct fuse_conn *fc, struct fuse_args *args) +{ + if (fc->minor < 4 && args->in.h.opcode == FUSE_STATFS) + args->out.args[0].size = FUSE_COMPAT_STATFS_SIZE; + + if (fc->minor < 9) { + switch (args->in.h.opcode) { + case FUSE_LOOKUP: + case FUSE_CREATE: + case FUSE_MKNOD: + case FUSE_MKDIR: + case FUSE_SYMLINK: + case FUSE_LINK: + args->out.args[0].size = FUSE_COMPAT_ENTRY_OUT_SIZE; + break; + case FUSE_GETATTR: + case FUSE_SETATTR: + args->out.args[0].size = FUSE_COMPAT_ATTR_OUT_SIZE; + break; + } + } + if (fc->minor < 12) { + switch (args->in.h.opcode) { + case FUSE_CREATE: + args->in.args[0].size = sizeof(struct fuse_open_in); + break; + case FUSE_MKNOD: + args->in.args[0].size = FUSE_COMPAT_MKNOD_IN_SIZE; + break; + } + } +} + ssize_t fuse_simple_request(struct fuse_conn *fc, struct fuse_args *args) { struct fuse_req *req; @@ -520,6 +564,9 @@ ssize_t fuse_simple_request(struct fuse_conn *fc, struct fuse_args *args) if (IS_ERR(req)) return PTR_ERR(req); + /* Needs to be done after fuse_get_req() so that fc->minor is valid */ + fuse_adjust_compat(fc, args); + req->in.h.opcode = args->in.h.opcode; req->in.h.nodeid = args->in.h.nodeid; req->in.numargs = args->in.numargs; @@ -2127,7 +2174,7 @@ void fuse_abort_conn(struct fuse_conn *fc) if (fc->connected) { fc->connected = 0; fc->blocked = 0; - fc->initialized = 1; + fuse_set_initialized(fc); end_io_requests(fc); end_queued_requests(fc); end_polls(fc); @@ -2146,7 +2193,7 @@ int fuse_dev_release(struct inode *inode, struct file *file) spin_lock(&fc->lock); fc->connected = 0; fc->blocked = 0; - fc->initialized = 1; + fuse_set_initialized(fc); end_queued_requests(fc); end_polls(fc); wake_up_all(&fc->blocked_waitq); diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index 252b8a5..08e7b1a 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -156,10 +156,7 @@ static void fuse_lookup_init(struct fuse_conn *fc, struct fuse_args *args, args->in.args[0].size = name->len + 1; args->in.args[0].value = name->name; args->out.numargs = 1; - if (fc->minor < 9) - args->out.args[0].size = FUSE_COMPAT_ENTRY_OUT_SIZE; - else - args->out.args[0].size = sizeof(struct fuse_entry_out); + args->out.args[0].size = sizeof(struct fuse_entry_out); args->out.args[0].value = outarg; } @@ -422,16 +419,12 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, args.in.h.opcode = FUSE_CREATE; args.in.h.nodeid = get_node_id(dir); args.in.numargs = 2; - args.in.args[0].size = fc->minor < 12 ? sizeof(struct fuse_open_in) : - sizeof(inarg); + args.in.args[0].size = sizeof(inarg); args.in.args[0].value = &inarg; args.in.args[1].size = entry->d_name.len + 1; args.in.args[1].value = entry->d_name.name; args.out.numargs = 2; - if (fc->minor < 9) - args.out.args[0].size = FUSE_COMPAT_ENTRY_OUT_SIZE; - else - args.out.args[0].size = sizeof(outentry); + args.out.args[0].size = sizeof(outentry); args.out.args[0].value = &outentry; args.out.args[1].size = sizeof(outopen); args.out.args[1].value = &outopen; @@ -539,10 +532,7 @@ static int create_new_entry(struct fuse_conn *fc, struct fuse_args *args, memset(&outarg, 0, sizeof(outarg)); args->in.h.nodeid = get_node_id(dir); args->out.numargs = 1; - if (fc->minor < 9) - args->out.args[0].size = FUSE_COMPAT_ENTRY_OUT_SIZE; - else - args->out.args[0].size = sizeof(outarg); + args->out.args[0].size = sizeof(outarg); args->out.args[0].value = &outarg; err = fuse_simple_request(fc, args); if (err) @@ -592,8 +582,7 @@ static int fuse_mknod(struct inode *dir, struct dentry *entry, umode_t mode, inarg.umask = current_umask(); args.in.h.opcode = FUSE_MKNOD; args.in.numargs = 2; - args.in.args[0].size = fc->minor < 12 ? FUSE_COMPAT_MKNOD_IN_SIZE : - sizeof(inarg); + args.in.args[0].size = sizeof(inarg); args.in.args[0].value = &inarg; args.in.args[1].size = entry->d_name.len + 1; args.in.args[1].value = entry->d_name.name; @@ -899,10 +888,7 @@ static int fuse_do_getattr(struct inode *inode, struct kstat *stat, args.in.args[0].size = sizeof(inarg); args.in.args[0].value = &inarg; args.out.numargs = 1; - if (fc->minor < 9) - args.out.args[0].size = FUSE_COMPAT_ATTR_OUT_SIZE; - else - args.out.args[0].size = sizeof(outarg); + args.out.args[0].size = sizeof(outarg); args.out.args[0].value = &outarg; err = fuse_simple_request(fc, &args); if (!err) { @@ -1574,10 +1560,7 @@ static void fuse_setattr_fill(struct fuse_conn *fc, struct fuse_args *args, args->in.args[0].size = sizeof(*inarg_p); args->in.args[0].value = inarg_p; args->out.numargs = 1; - if (fc->minor < 9) - args->out.args[0].size = FUSE_COMPAT_ATTR_OUT_SIZE; - else - args->out.args[0].size = sizeof(*outarg_p); + args->out.args[0].size = sizeof(*outarg_p); args->out.args[0].value = outarg_p; } diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index e0fc672..1cdfb07 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -906,4 +906,6 @@ int fuse_write_inode(struct inode *inode, struct writeback_control *wbc); int fuse_do_setattr(struct inode *inode, struct iattr *attr, struct file *file); +void fuse_set_initialized(struct fuse_conn *fc); + #endif /* _FS_FUSE_I_H */ diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 6749109..f38256e 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -424,8 +424,7 @@ static int fuse_statfs(struct dentry *dentry, struct kstatfs *buf) args.in.h.opcode = FUSE_STATFS; args.in.h.nodeid = get_node_id(dentry->d_inode); args.out.numargs = 1; - args.out.args[0].size = - fc->minor < 4 ? FUSE_COMPAT_STATFS_SIZE : sizeof(outarg); + args.out.args[0].size = sizeof(outarg); args.out.args[0].value = &outarg; err = fuse_simple_request(fc, &args); if (!err) @@ -898,7 +897,7 @@ static void process_init_reply(struct fuse_conn *fc, struct fuse_req *req) fc->max_write = max_t(unsigned, 4096, fc->max_write); fc->conn_init = 1; } - fc->initialized = 1; + fuse_set_initialized(fc); wake_up_all(&fc->blocked_waitq); } @@ -194,7 +194,7 @@ int inode_init_always(struct super_block *sb, struct inode *inode) #ifdef CONFIG_FSNOTIFY inode->i_fsnotify_mask = 0; #endif - + inode->i_flctx = NULL; this_cpu_inc(nr_inodes); return 0; @@ -237,6 +237,7 @@ void __destroy_inode(struct inode *inode) BUG_ON(inode_has_buffers(inode)); security_inode_free(inode); fsnotify_inode_delete(inode); + locks_free_lock_context(inode->i_flctx); if (!inode->i_nlink) { WARN_ON(atomic_long_read(&inode->i_sb->s_remove_count) == 0); atomic_long_dec(&inode->i_sb->s_remove_count); diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c index d12ff4e..665ef5a 100644 --- a/fs/lockd/svcsubs.c +++ b/fs/lockd/svcsubs.c @@ -164,12 +164,15 @@ nlm_traverse_locks(struct nlm_host *host, struct nlm_file *file, { struct inode *inode = nlmsvc_file_inode(file); struct file_lock *fl; + struct file_lock_context *flctx = inode->i_flctx; struct nlm_host *lockhost; + if (!flctx || list_empty_careful(&flctx->flc_posix)) + return 0; again: file->f_locks = 0; - spin_lock(&inode->i_lock); - for (fl = inode->i_flock; fl; fl = fl->fl_next) { + spin_lock(&flctx->flc_lock); + list_for_each_entry(fl, &flctx->flc_posix, fl_list) { if (fl->fl_lmops != &nlmsvc_lock_operations) continue; @@ -180,7 +183,7 @@ again: if (match(lockhost, host)) { struct file_lock lock = *fl; - spin_unlock(&inode->i_lock); + spin_unlock(&flctx->flc_lock); lock.fl_type = F_UNLCK; lock.fl_start = 0; lock.fl_end = OFFSET_MAX; @@ -192,7 +195,7 @@ again: goto again; } } - spin_unlock(&inode->i_lock); + spin_unlock(&flctx->flc_lock); return 0; } @@ -223,18 +226,21 @@ nlm_file_inuse(struct nlm_file *file) { struct inode *inode = nlmsvc_file_inode(file); struct file_lock *fl; + struct file_lock_context *flctx = inode->i_flctx; if (file->f_count || !list_empty(&file->f_blocks) || file->f_shares) return 1; - spin_lock(&inode->i_lock); - for (fl = inode->i_flock; fl; fl = fl->fl_next) { - if (fl->fl_lmops == &nlmsvc_lock_operations) { - spin_unlock(&inode->i_lock); - return 1; + if (flctx && !list_empty_careful(&flctx->flc_posix)) { + spin_lock(&flctx->flc_lock); + list_for_each_entry(fl, &flctx->flc_posix, fl_list) { + if (fl->fl_lmops == &nlmsvc_lock_operations) { + spin_unlock(&flctx->flc_lock); + return 1; + } } + spin_unlock(&flctx->flc_lock); } - spin_unlock(&inode->i_lock); file->f_locks = 0; return 0; } @@ -157,14 +157,11 @@ static int target_leasetype(struct file_lock *fl) int leases_enable = 1; int lease_break_time = 45; -#define for_each_lock(inode, lockp) \ - for (lockp = &inode->i_flock; *lockp != NULL; lockp = &(*lockp)->fl_next) - /* * The global file_lock_list is only used for displaying /proc/locks, so we * keep a list on each CPU, with each list protected by its own spinlock via * the file_lock_lglock. Note that alterations to the list also require that - * the relevant i_lock is held. + * the relevant flc_lock is held. */ DEFINE_STATIC_LGLOCK(file_lock_lglock); static DEFINE_PER_CPU(struct hlist_head, file_lock_list); @@ -192,21 +189,68 @@ static DEFINE_HASHTABLE(blocked_hash, BLOCKED_HASH_BITS); * contrast to those that are acting as records of acquired locks). * * Note that when we acquire this lock in order to change the above fields, - * we often hold the i_lock as well. In certain cases, when reading the fields + * we often hold the flc_lock as well. In certain cases, when reading the fields * protected by this lock, we can skip acquiring it iff we already hold the - * i_lock. + * flc_lock. * * In particular, adding an entry to the fl_block list requires that you hold - * both the i_lock and the blocked_lock_lock (acquired in that order). Deleting - * an entry from the list however only requires the file_lock_lock. + * both the flc_lock and the blocked_lock_lock (acquired in that order). + * Deleting an entry from the list however only requires the file_lock_lock. */ static DEFINE_SPINLOCK(blocked_lock_lock); +static struct kmem_cache *flctx_cache __read_mostly; static struct kmem_cache *filelock_cache __read_mostly; +static struct file_lock_context * +locks_get_lock_context(struct inode *inode) +{ + struct file_lock_context *new; + + if (likely(inode->i_flctx)) + goto out; + + new = kmem_cache_alloc(flctx_cache, GFP_KERNEL); + if (!new) + goto out; + + spin_lock_init(&new->flc_lock); + INIT_LIST_HEAD(&new->flc_flock); + INIT_LIST_HEAD(&new->flc_posix); + INIT_LIST_HEAD(&new->flc_lease); + + /* + * Assign the pointer if it's not already assigned. If it is, then + * free the context we just allocated. + */ + spin_lock(&inode->i_lock); + if (likely(!inode->i_flctx)) { + inode->i_flctx = new; + new = NULL; + } + spin_unlock(&inode->i_lock); + + if (new) + kmem_cache_free(flctx_cache, new); +out: + return inode->i_flctx; +} + +void +locks_free_lock_context(struct file_lock_context *ctx) +{ + if (ctx) { + WARN_ON_ONCE(!list_empty(&ctx->flc_flock)); + WARN_ON_ONCE(!list_empty(&ctx->flc_posix)); + WARN_ON_ONCE(!list_empty(&ctx->flc_lease)); + kmem_cache_free(flctx_cache, ctx); + } +} + static void locks_init_lock_heads(struct file_lock *fl) { INIT_HLIST_NODE(&fl->fl_link); + INIT_LIST_HEAD(&fl->fl_list); INIT_LIST_HEAD(&fl->fl_block); init_waitqueue_head(&fl->fl_wait); } @@ -243,6 +287,7 @@ EXPORT_SYMBOL_GPL(locks_release_private); void locks_free_lock(struct file_lock *fl) { BUG_ON(waitqueue_active(&fl->fl_wait)); + BUG_ON(!list_empty(&fl->fl_list)); BUG_ON(!list_empty(&fl->fl_block)); BUG_ON(!hlist_unhashed(&fl->fl_link)); @@ -257,8 +302,8 @@ locks_dispose_list(struct list_head *dispose) struct file_lock *fl; while (!list_empty(dispose)) { - fl = list_first_entry(dispose, struct file_lock, fl_block); - list_del_init(&fl->fl_block); + fl = list_first_entry(dispose, struct file_lock, fl_list); + list_del_init(&fl->fl_list); locks_free_lock(fl); } } @@ -513,7 +558,7 @@ static int posix_same_owner(struct file_lock *fl1, struct file_lock *fl2) return fl1->fl_owner == fl2->fl_owner; } -/* Must be called with the i_lock held! */ +/* Must be called with the flc_lock held! */ static void locks_insert_global_locks(struct file_lock *fl) { lg_local_lock(&file_lock_lglock); @@ -522,12 +567,12 @@ static void locks_insert_global_locks(struct file_lock *fl) lg_local_unlock(&file_lock_lglock); } -/* Must be called with the i_lock held! */ +/* Must be called with the flc_lock held! */ static void locks_delete_global_locks(struct file_lock *fl) { /* * Avoid taking lock if already unhashed. This is safe since this check - * is done while holding the i_lock, and new insertions into the list + * is done while holding the flc_lock, and new insertions into the list * also require that it be held. */ if (hlist_unhashed(&fl->fl_link)) @@ -579,10 +624,10 @@ static void locks_delete_block(struct file_lock *waiter) * the order they blocked. The documentation doesn't require this but * it seems like the reasonable thing to do. * - * Must be called with both the i_lock and blocked_lock_lock held. The fl_block - * list itself is protected by the blocked_lock_lock, but by ensuring that the - * i_lock is also held on insertions we can avoid taking the blocked_lock_lock - * in some cases when we see that the fl_block list is empty. + * Must be called with both the flc_lock and blocked_lock_lock held. The + * fl_block list itself is protected by the blocked_lock_lock, but by ensuring + * that the flc_lock is also held on insertions we can avoid taking the + * blocked_lock_lock in some cases when we see that the fl_block list is empty. */ static void __locks_insert_block(struct file_lock *blocker, struct file_lock *waiter) @@ -594,7 +639,7 @@ static void __locks_insert_block(struct file_lock *blocker, locks_insert_global_blocked(waiter); } -/* Must be called with i_lock held. */ +/* Must be called with flc_lock held. */ static void locks_insert_block(struct file_lock *blocker, struct file_lock *waiter) { @@ -606,15 +651,15 @@ static void locks_insert_block(struct file_lock *blocker, /* * Wake up processes blocked waiting for blocker. * - * Must be called with the inode->i_lock held! + * Must be called with the inode->flc_lock held! */ static void locks_wake_up_blocks(struct file_lock *blocker) { /* * Avoid taking global lock if list is empty. This is safe since new - * blocked requests are only added to the list under the i_lock, and - * the i_lock is always held here. Note that removal from the fl_block - * list does not require the i_lock, so we must recheck list_empty() + * blocked requests are only added to the list under the flc_lock, and + * the flc_lock is always held here. Note that removal from the fl_block + * list does not require the flc_lock, so we must recheck list_empty() * after acquiring the blocked_lock_lock. */ if (list_empty(&blocker->fl_block)) @@ -635,63 +680,36 @@ static void locks_wake_up_blocks(struct file_lock *blocker) spin_unlock(&blocked_lock_lock); } -/* Insert file lock fl into an inode's lock list at the position indicated - * by pos. At the same time add the lock to the global file lock list. - * - * Must be called with the i_lock held! - */ -static void locks_insert_lock(struct file_lock **pos, struct file_lock *fl) +static void +locks_insert_lock_ctx(struct file_lock *fl, int *counter, + struct list_head *before) { fl->fl_nspid = get_pid(task_tgid(current)); - - /* insert into file's list */ - fl->fl_next = *pos; - *pos = fl; - + list_add_tail(&fl->fl_list, before); + ++*counter; locks_insert_global_locks(fl); } -/** - * locks_delete_lock - Delete a lock and then free it. - * @thisfl_p: pointer that points to the fl_next field of the previous - * inode->i_flock list entry - * - * Unlink a lock from all lists and free the namespace reference, but don't - * free it yet. Wake up processes that are blocked waiting for this lock and - * notify the FS that the lock has been cleared. - * - * Must be called with the i_lock held! - */ -static void locks_unlink_lock(struct file_lock **thisfl_p) +static void +locks_unlink_lock_ctx(struct file_lock *fl, int *counter) { - struct file_lock *fl = *thisfl_p; - locks_delete_global_locks(fl); - - *thisfl_p = fl->fl_next; - fl->fl_next = NULL; - + list_del_init(&fl->fl_list); + --*counter; if (fl->fl_nspid) { put_pid(fl->fl_nspid); fl->fl_nspid = NULL; } - locks_wake_up_blocks(fl); } -/* - * Unlink a lock from all lists and free it. - * - * Must be called with i_lock held! - */ -static void locks_delete_lock(struct file_lock **thisfl_p, - struct list_head *dispose) +static void +locks_delete_lock_ctx(struct file_lock *fl, int *counter, + struct list_head *dispose) { - struct file_lock *fl = *thisfl_p; - - locks_unlink_lock(thisfl_p); + locks_unlink_lock_ctx(fl, counter); if (dispose) - list_add(&fl->fl_block, dispose); + list_add(&fl->fl_list, dispose); else locks_free_lock(fl); } @@ -746,22 +764,27 @@ void posix_test_lock(struct file *filp, struct file_lock *fl) { struct file_lock *cfl; + struct file_lock_context *ctx; struct inode *inode = file_inode(filp); - spin_lock(&inode->i_lock); - for (cfl = file_inode(filp)->i_flock; cfl; cfl = cfl->fl_next) { - if (!IS_POSIX(cfl)) - continue; - if (posix_locks_conflict(fl, cfl)) - break; - } - if (cfl) { - locks_copy_conflock(fl, cfl); - if (cfl->fl_nspid) - fl->fl_pid = pid_vnr(cfl->fl_nspid); - } else + ctx = inode->i_flctx; + if (!ctx || list_empty_careful(&ctx->flc_posix)) { fl->fl_type = F_UNLCK; - spin_unlock(&inode->i_lock); + return; + } + + spin_lock(&ctx->flc_lock); + list_for_each_entry(cfl, &ctx->flc_posix, fl_list) { + if (posix_locks_conflict(fl, cfl)) { + locks_copy_conflock(fl, cfl); + if (cfl->fl_nspid) + fl->fl_pid = pid_vnr(cfl->fl_nspid); + goto out; + } + } + fl->fl_type = F_UNLCK; +out: + spin_unlock(&ctx->flc_lock); return; } EXPORT_SYMBOL(posix_test_lock); @@ -845,34 +868,34 @@ static int posix_locks_deadlock(struct file_lock *caller_fl, static int flock_lock_file(struct file *filp, struct file_lock *request) { struct file_lock *new_fl = NULL; - struct file_lock **before; - struct inode * inode = file_inode(filp); + struct file_lock *fl; + struct file_lock_context *ctx; + struct inode *inode = file_inode(filp); int error = 0; - int found = 0; + bool found = false; LIST_HEAD(dispose); + ctx = locks_get_lock_context(inode); + if (!ctx) + return -ENOMEM; + if (!(request->fl_flags & FL_ACCESS) && (request->fl_type != F_UNLCK)) { new_fl = locks_alloc_lock(); if (!new_fl) return -ENOMEM; } - spin_lock(&inode->i_lock); + spin_lock(&ctx->flc_lock); if (request->fl_flags & FL_ACCESS) goto find_conflict; - for_each_lock(inode, before) { - struct file_lock *fl = *before; - if (IS_POSIX(fl)) - break; - if (IS_LEASE(fl)) - continue; + list_for_each_entry(fl, &ctx->flc_flock, fl_list) { if (filp != fl->fl_file) continue; if (request->fl_type == fl->fl_type) goto out; - found = 1; - locks_delete_lock(before, &dispose); + found = true; + locks_delete_lock_ctx(fl, &ctx->flc_flock_cnt, &dispose); break; } @@ -887,18 +910,13 @@ static int flock_lock_file(struct file *filp, struct file_lock *request) * give it the opportunity to lock the file. */ if (found) { - spin_unlock(&inode->i_lock); + spin_unlock(&ctx->flc_lock); cond_resched(); - spin_lock(&inode->i_lock); + spin_lock(&ctx->flc_lock); } find_conflict: - for_each_lock(inode, before) { - struct file_lock *fl = *before; - if (IS_POSIX(fl)) - break; - if (IS_LEASE(fl)) - continue; + list_for_each_entry(fl, &ctx->flc_flock, fl_list) { if (!flock_locks_conflict(request, fl)) continue; error = -EAGAIN; @@ -911,12 +929,12 @@ find_conflict: if (request->fl_flags & FL_ACCESS) goto out; locks_copy_lock(new_fl, request); - locks_insert_lock(before, new_fl); + locks_insert_lock_ctx(new_fl, &ctx->flc_flock_cnt, &ctx->flc_flock); new_fl = NULL; error = 0; out: - spin_unlock(&inode->i_lock); + spin_unlock(&ctx->flc_lock); if (new_fl) locks_free_lock(new_fl); locks_dispose_list(&dispose); @@ -925,16 +943,20 @@ out: static int __posix_lock_file(struct inode *inode, struct file_lock *request, struct file_lock *conflock) { - struct file_lock *fl; + struct file_lock *fl, *tmp; struct file_lock *new_fl = NULL; struct file_lock *new_fl2 = NULL; struct file_lock *left = NULL; struct file_lock *right = NULL; - struct file_lock **before; + struct file_lock_context *ctx; int error; bool added = false; LIST_HEAD(dispose); + ctx = locks_get_lock_context(inode); + if (!ctx) + return -ENOMEM; + /* * We may need two file_lock structures for this operation, * so we get them in advance to avoid races. @@ -948,15 +970,14 @@ static int __posix_lock_file(struct inode *inode, struct file_lock *request, str new_fl2 = locks_alloc_lock(); } - spin_lock(&inode->i_lock); + spin_lock(&ctx->flc_lock); /* * New lock request. Walk all POSIX locks and look for conflicts. If * there are any, either return error or put the request on the * blocker's list of waiters and the global blocked_hash. */ if (request->fl_type != F_UNLCK) { - for_each_lock(inode, before) { - fl = *before; + list_for_each_entry(fl, &ctx->flc_posix, fl_list) { if (!IS_POSIX(fl)) continue; if (!posix_locks_conflict(request, fl)) @@ -986,29 +1007,25 @@ static int __posix_lock_file(struct inode *inode, struct file_lock *request, str if (request->fl_flags & FL_ACCESS) goto out; - /* - * Find the first old lock with the same owner as the new lock. - */ - - before = &inode->i_flock; - - /* First skip locks owned by other processes. */ - while ((fl = *before) && (!IS_POSIX(fl) || - !posix_same_owner(request, fl))) { - before = &fl->fl_next; + /* Find the first old lock with the same owner as the new lock */ + list_for_each_entry(fl, &ctx->flc_posix, fl_list) { + if (posix_same_owner(request, fl)) + break; } /* Process locks with this owner. */ - while ((fl = *before) && posix_same_owner(request, fl)) { - /* Detect adjacent or overlapping regions (if same lock type) - */ + list_for_each_entry_safe_from(fl, tmp, &ctx->flc_posix, fl_list) { + if (!posix_same_owner(request, fl)) + break; + + /* Detect adjacent or overlapping regions (if same lock type) */ if (request->fl_type == fl->fl_type) { /* In all comparisons of start vs end, use * "start - 1" rather than "end + 1". If end * is OFFSET_MAX, end + 1 will become negative. */ if (fl->fl_end < request->fl_start - 1) - goto next_lock; + continue; /* If the next lock in the list has entirely bigger * addresses than the new one, insert the lock here. */ @@ -1029,18 +1046,18 @@ static int __posix_lock_file(struct inode *inode, struct file_lock *request, str else request->fl_end = fl->fl_end; if (added) { - locks_delete_lock(before, &dispose); + locks_delete_lock_ctx(fl, &ctx->flc_posix_cnt, + &dispose); continue; } request = fl; added = true; - } - else { + } else { /* Processing for different lock types is a bit * more complex. */ if (fl->fl_end < request->fl_start) - goto next_lock; + continue; if (fl->fl_start > request->fl_end) break; if (request->fl_type == F_UNLCK) @@ -1059,7 +1076,8 @@ static int __posix_lock_file(struct inode *inode, struct file_lock *request, str * one (This may happen several times). */ if (added) { - locks_delete_lock(before, &dispose); + locks_delete_lock_ctx(fl, + &ctx->flc_posix_cnt, &dispose); continue; } /* @@ -1075,15 +1093,13 @@ static int __posix_lock_file(struct inode *inode, struct file_lock *request, str locks_copy_lock(new_fl, request); request = new_fl; new_fl = NULL; - locks_delete_lock(before, &dispose); - locks_insert_lock(before, request); + locks_insert_lock_ctx(request, + &ctx->flc_posix_cnt, &fl->fl_list); + locks_delete_lock_ctx(fl, + &ctx->flc_posix_cnt, &dispose); added = true; } } - /* Go on to next lock. - */ - next_lock: - before = &fl->fl_next; } /* @@ -1108,7 +1124,8 @@ static int __posix_lock_file(struct inode *inode, struct file_lock *request, str goto out; } locks_copy_lock(new_fl, request); - locks_insert_lock(before, new_fl); + locks_insert_lock_ctx(new_fl, &ctx->flc_posix_cnt, + &fl->fl_list); new_fl = NULL; } if (right) { @@ -1119,7 +1136,8 @@ static int __posix_lock_file(struct inode *inode, struct file_lock *request, str left = new_fl2; new_fl2 = NULL; locks_copy_lock(left, right); - locks_insert_lock(before, left); + locks_insert_lock_ctx(left, &ctx->flc_posix_cnt, + &fl->fl_list); } right->fl_start = request->fl_end + 1; locks_wake_up_blocks(right); @@ -1129,7 +1147,7 @@ static int __posix_lock_file(struct inode *inode, struct file_lock *request, str locks_wake_up_blocks(left); } out: - spin_unlock(&inode->i_lock); + spin_unlock(&ctx->flc_lock); /* * Free any unused locks. */ @@ -1199,22 +1217,29 @@ EXPORT_SYMBOL(posix_lock_file_wait); */ int locks_mandatory_locked(struct file *file) { + int ret; struct inode *inode = file_inode(file); + struct file_lock_context *ctx; struct file_lock *fl; + ctx = inode->i_flctx; + if (!ctx || list_empty_careful(&ctx->flc_posix)) + return 0; + /* * Search the lock list for this inode for any POSIX locks. */ - spin_lock(&inode->i_lock); - for (fl = inode->i_flock; fl != NULL; fl = fl->fl_next) { - if (!IS_POSIX(fl)) - continue; + spin_lock(&ctx->flc_lock); + ret = 0; + list_for_each_entry(fl, &ctx->flc_posix, fl_list) { if (fl->fl_owner != current->files && - fl->fl_owner != file) + fl->fl_owner != file) { + ret = -EAGAIN; break; + } } - spin_unlock(&inode->i_lock); - return fl ? -EAGAIN : 0; + spin_unlock(&ctx->flc_lock); + return ret; } /** @@ -1294,9 +1319,9 @@ static void lease_clear_pending(struct file_lock *fl, int arg) } /* We already had a lease on this file; just change its type */ -int lease_modify(struct file_lock **before, int arg, struct list_head *dispose) +int lease_modify(struct file_lock *fl, int arg, struct list_head *dispose) { - struct file_lock *fl = *before; + struct file_lock_context *flctx; int error = assign_type(fl, arg); if (error) @@ -1306,6 +1331,7 @@ int lease_modify(struct file_lock **before, int arg, struct list_head *dispose) if (arg == F_UNLCK) { struct file *filp = fl->fl_file; + flctx = file_inode(filp)->i_flctx; f_delown(filp); filp->f_owner.signum = 0; fasync_helper(0, fl->fl_file, 0, &fl->fl_fasync); @@ -1313,7 +1339,7 @@ int lease_modify(struct file_lock **before, int arg, struct list_head *dispose) printk(KERN_ERR "locks_delete_lock: fasync == %p\n", fl->fl_fasync); fl->fl_fasync = NULL; } - locks_delete_lock(before, dispose); + locks_delete_lock_ctx(fl, &flctx->flc_lease_cnt, dispose); } return 0; } @@ -1329,20 +1355,17 @@ static bool past_time(unsigned long then) static void time_out_leases(struct inode *inode, struct list_head *dispose) { - struct file_lock **before; - struct file_lock *fl; + struct file_lock_context *ctx = inode->i_flctx; + struct file_lock *fl, *tmp; - lockdep_assert_held(&inode->i_lock); + lockdep_assert_held(&ctx->flc_lock); - before = &inode->i_flock; - while ((fl = *before) && IS_LEASE(fl) && lease_breaking(fl)) { + list_for_each_entry_safe(fl, tmp, &ctx->flc_lease, fl_list) { trace_time_out_leases(inode, fl); if (past_time(fl->fl_downgrade_time)) - lease_modify(before, F_RDLCK, dispose); + lease_modify(fl, F_RDLCK, dispose); if (past_time(fl->fl_break_time)) - lease_modify(before, F_UNLCK, dispose); - if (fl == *before) /* lease_modify may have freed fl */ - before = &fl->fl_next; + lease_modify(fl, F_UNLCK, dispose); } } @@ -1356,11 +1379,12 @@ static bool leases_conflict(struct file_lock *lease, struct file_lock *breaker) static bool any_leases_conflict(struct inode *inode, struct file_lock *breaker) { + struct file_lock_context *ctx = inode->i_flctx; struct file_lock *fl; - lockdep_assert_held(&inode->i_lock); + lockdep_assert_held(&ctx->flc_lock); - for (fl = inode->i_flock ; fl && IS_LEASE(fl); fl = fl->fl_next) { + list_for_each_entry(fl, &ctx->flc_lease, fl_list) { if (leases_conflict(fl, breaker)) return true; } @@ -1384,7 +1408,8 @@ int __break_lease(struct inode *inode, unsigned int mode, unsigned int type) { int error = 0; struct file_lock *new_fl; - struct file_lock *fl, **before; + struct file_lock_context *ctx = inode->i_flctx; + struct file_lock *fl; unsigned long break_time; int want_write = (mode & O_ACCMODE) != O_RDONLY; LIST_HEAD(dispose); @@ -1394,7 +1419,13 @@ int __break_lease(struct inode *inode, unsigned int mode, unsigned int type) return PTR_ERR(new_fl); new_fl->fl_flags = type; - spin_lock(&inode->i_lock); + /* typically we will check that ctx is non-NULL before calling */ + if (!ctx) { + WARN_ON_ONCE(1); + return error; + } + + spin_lock(&ctx->flc_lock); time_out_leases(inode, &dispose); @@ -1408,9 +1439,7 @@ int __break_lease(struct inode *inode, unsigned int mode, unsigned int type) break_time++; /* so that 0 means no break time */ } - for (before = &inode->i_flock; - ((fl = *before) != NULL) && IS_LEASE(fl); - before = &fl->fl_next) { + list_for_each_entry(fl, &ctx->flc_lease, fl_list) { if (!leases_conflict(fl, new_fl)) continue; if (want_write) { @@ -1419,17 +1448,17 @@ int __break_lease(struct inode *inode, unsigned int mode, unsigned int type) fl->fl_flags |= FL_UNLOCK_PENDING; fl->fl_break_time = break_time; } else { - if (lease_breaking(inode->i_flock)) + if (lease_breaking(fl)) continue; fl->fl_flags |= FL_DOWNGRADE_PENDING; fl->fl_downgrade_time = break_time; } if (fl->fl_lmops->lm_break(fl)) - locks_delete_lock(before, &dispose); + locks_delete_lock_ctx(fl, &ctx->flc_lease_cnt, + &dispose); } - fl = inode->i_flock; - if (!fl || !IS_LEASE(fl)) + if (list_empty(&ctx->flc_lease)) goto out; if (mode & O_NONBLOCK) { @@ -1439,18 +1468,19 @@ int __break_lease(struct inode *inode, unsigned int mode, unsigned int type) } restart: - break_time = inode->i_flock->fl_break_time; + fl = list_first_entry(&ctx->flc_lease, struct file_lock, fl_list); + break_time = fl->fl_break_time; if (break_time != 0) break_time -= jiffies; if (break_time == 0) break_time++; - locks_insert_block(inode->i_flock, new_fl); + locks_insert_block(fl, new_fl); trace_break_lease_block(inode, new_fl); - spin_unlock(&inode->i_lock); + spin_unlock(&ctx->flc_lock); locks_dispose_list(&dispose); error = wait_event_interruptible_timeout(new_fl->fl_wait, !new_fl->fl_next, break_time); - spin_lock(&inode->i_lock); + spin_lock(&ctx->flc_lock); trace_break_lease_unblock(inode, new_fl); locks_delete_block(new_fl); if (error >= 0) { @@ -1462,12 +1492,10 @@ restart: time_out_leases(inode, &dispose); if (any_leases_conflict(inode, new_fl)) goto restart; - error = 0; } - out: - spin_unlock(&inode->i_lock); + spin_unlock(&ctx->flc_lock); locks_dispose_list(&dispose); locks_free_lock(new_fl); return error; @@ -1487,14 +1515,18 @@ EXPORT_SYMBOL(__break_lease); void lease_get_mtime(struct inode *inode, struct timespec *time) { bool has_lease = false; - struct file_lock *flock; + struct file_lock_context *ctx = inode->i_flctx; + struct file_lock *fl; - if (inode->i_flock) { - spin_lock(&inode->i_lock); - flock = inode->i_flock; - if (flock && IS_LEASE(flock) && (flock->fl_type == F_WRLCK)) - has_lease = true; - spin_unlock(&inode->i_lock); + if (ctx && !list_empty_careful(&ctx->flc_lease)) { + spin_lock(&ctx->flc_lock); + if (!list_empty(&ctx->flc_lease)) { + fl = list_first_entry(&ctx->flc_lease, + struct file_lock, fl_list); + if (fl->fl_type == F_WRLCK) + has_lease = true; + } + spin_unlock(&ctx->flc_lock); } if (has_lease) @@ -1532,20 +1564,22 @@ int fcntl_getlease(struct file *filp) { struct file_lock *fl; struct inode *inode = file_inode(filp); + struct file_lock_context *ctx = inode->i_flctx; int type = F_UNLCK; LIST_HEAD(dispose); - spin_lock(&inode->i_lock); - time_out_leases(file_inode(filp), &dispose); - for (fl = file_inode(filp)->i_flock; fl && IS_LEASE(fl); - fl = fl->fl_next) { - if (fl->fl_file == filp) { + if (ctx && !list_empty_careful(&ctx->flc_lease)) { + spin_lock(&ctx->flc_lock); + time_out_leases(file_inode(filp), &dispose); + list_for_each_entry(fl, &ctx->flc_lease, fl_list) { + if (fl->fl_file != filp) + continue; type = target_leasetype(fl); break; } + spin_unlock(&ctx->flc_lock); + locks_dispose_list(&dispose); } - spin_unlock(&inode->i_lock); - locks_dispose_list(&dispose); return type; } @@ -1578,9 +1612,10 @@ check_conflicting_open(const struct dentry *dentry, const long arg) static int generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **priv) { - struct file_lock *fl, **before, **my_before = NULL, *lease; + struct file_lock *fl, *my_fl = NULL, *lease; struct dentry *dentry = filp->f_path.dentry; struct inode *inode = dentry->d_inode; + struct file_lock_context *ctx; bool is_deleg = (*flp)->fl_flags & FL_DELEG; int error; LIST_HEAD(dispose); @@ -1588,6 +1623,10 @@ generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **pr lease = *flp; trace_generic_add_lease(inode, lease); + ctx = locks_get_lock_context(inode); + if (!ctx) + return -ENOMEM; + /* * In the delegation case we need mutual exclusion with * a number of operations that take the i_mutex. We trylock @@ -1606,7 +1645,7 @@ generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **pr return -EINVAL; } - spin_lock(&inode->i_lock); + spin_lock(&ctx->flc_lock); time_out_leases(inode, &dispose); error = check_conflicting_open(dentry, arg); if (error) @@ -1621,13 +1660,12 @@ generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **pr * except for this filp. */ error = -EAGAIN; - for (before = &inode->i_flock; - ((fl = *before) != NULL) && IS_LEASE(fl); - before = &fl->fl_next) { + list_for_each_entry(fl, &ctx->flc_lease, fl_list) { if (fl->fl_file == filp) { - my_before = before; + my_fl = fl; continue; } + /* * No exclusive leases if someone else has a lease on * this file: @@ -1642,9 +1680,8 @@ generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **pr goto out; } - if (my_before != NULL) { - lease = *my_before; - error = lease->fl_lmops->lm_change(my_before, arg, &dispose); + if (my_fl != NULL) { + error = lease->fl_lmops->lm_change(my_fl, arg, &dispose); if (error) goto out; goto out_setup; @@ -1654,7 +1691,7 @@ generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **pr if (!leases_enable) goto out; - locks_insert_lock(before, lease); + locks_insert_lock_ctx(lease, &ctx->flc_lease_cnt, &ctx->flc_lease); /* * The check in break_lease() is lockless. It's possible for another * open to race in after we did the earlier check for a conflicting @@ -1666,45 +1703,49 @@ generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **pr */ smp_mb(); error = check_conflicting_open(dentry, arg); - if (error) - goto out_unlink; + if (error) { + locks_unlink_lock_ctx(lease, &ctx->flc_lease_cnt); + goto out; + } out_setup: if (lease->fl_lmops->lm_setup) lease->fl_lmops->lm_setup(lease, priv); out: - spin_unlock(&inode->i_lock); + spin_unlock(&ctx->flc_lock); locks_dispose_list(&dispose); if (is_deleg) mutex_unlock(&inode->i_mutex); - if (!error && !my_before) + if (!error && !my_fl) *flp = NULL; return error; -out_unlink: - locks_unlink_lock(before); - goto out; } static int generic_delete_lease(struct file *filp) { int error = -EAGAIN; - struct file_lock *fl, **before; + struct file_lock *fl, *victim = NULL; struct dentry *dentry = filp->f_path.dentry; struct inode *inode = dentry->d_inode; + struct file_lock_context *ctx = inode->i_flctx; LIST_HEAD(dispose); - spin_lock(&inode->i_lock); - time_out_leases(inode, &dispose); - for (before = &inode->i_flock; - ((fl = *before) != NULL) && IS_LEASE(fl); - before = &fl->fl_next) { - if (fl->fl_file == filp) + if (!ctx) { + trace_generic_delete_lease(inode, NULL); + return error; + } + + spin_lock(&ctx->flc_lock); + list_for_each_entry(fl, &ctx->flc_lease, fl_list) { + if (fl->fl_file == filp) { + victim = fl; break; + } } trace_generic_delete_lease(inode, fl); - if (fl) - error = fl->fl_lmops->lm_change(before, F_UNLCK, &dispose); - spin_unlock(&inode->i_lock); + if (victim) + error = fl->fl_lmops->lm_change(victim, F_UNLCK, &dispose); + spin_unlock(&ctx->flc_lock); locks_dispose_list(&dispose); return error; } @@ -2171,7 +2212,7 @@ again: */ /* * we need that spin_lock here - it prevents reordering between - * update of inode->i_flock and check for it done in close(). + * update of i_flctx->flc_posix and check for it done in close(). * rcu_read_lock() wouldn't do. */ spin_lock(¤t->files->file_lock); @@ -2331,13 +2372,14 @@ out: void locks_remove_posix(struct file *filp, fl_owner_t owner) { struct file_lock lock; + struct file_lock_context *ctx = file_inode(filp)->i_flctx; /* * If there are no locks held on this file, we don't need to call * posix_lock_file(). Another process could be setting a lock on this * file at the same time, but we wouldn't remove that lock anyway. */ - if (!file_inode(filp)->i_flock) + if (!ctx || list_empty(&ctx->flc_posix)) return; lock.fl_type = F_UNLCK; @@ -2358,67 +2400,67 @@ void locks_remove_posix(struct file *filp, fl_owner_t owner) EXPORT_SYMBOL(locks_remove_posix); +/* The i_flctx must be valid when calling into here */ +static void +locks_remove_flock(struct file *filp) +{ + struct file_lock fl = { + .fl_owner = filp, + .fl_pid = current->tgid, + .fl_file = filp, + .fl_flags = FL_FLOCK, + .fl_type = F_UNLCK, + .fl_end = OFFSET_MAX, + }; + struct file_lock_context *flctx = file_inode(filp)->i_flctx; + + if (list_empty(&flctx->flc_flock)) + return; + + if (filp->f_op->flock) + filp->f_op->flock(filp, F_SETLKW, &fl); + else + flock_lock_file(filp, &fl); + + if (fl.fl_ops && fl.fl_ops->fl_release_private) + fl.fl_ops->fl_release_private(&fl); +} + +/* The i_flctx must be valid when calling into here */ +static void +locks_remove_lease(struct file *filp) +{ + struct inode *inode = file_inode(filp); + struct file_lock_context *ctx = inode->i_flctx; + struct file_lock *fl, *tmp; + LIST_HEAD(dispose); + + if (list_empty(&ctx->flc_lease)) + return; + + spin_lock(&ctx->flc_lock); + list_for_each_entry_safe(fl, tmp, &ctx->flc_lease, fl_list) + lease_modify(fl, F_UNLCK, &dispose); + spin_unlock(&ctx->flc_lock); + locks_dispose_list(&dispose); +} + /* * This function is called on the last close of an open file. */ void locks_remove_file(struct file *filp) { - struct inode * inode = file_inode(filp); - struct file_lock *fl; - struct file_lock **before; - LIST_HEAD(dispose); - - if (!inode->i_flock) + if (!file_inode(filp)->i_flctx) return; + /* remove any OFD locks */ locks_remove_posix(filp, filp); - if (filp->f_op->flock) { - struct file_lock fl = { - .fl_owner = filp, - .fl_pid = current->tgid, - .fl_file = filp, - .fl_flags = FL_FLOCK, - .fl_type = F_UNLCK, - .fl_end = OFFSET_MAX, - }; - filp->f_op->flock(filp, F_SETLKW, &fl); - if (fl.fl_ops && fl.fl_ops->fl_release_private) - fl.fl_ops->fl_release_private(&fl); - } - - spin_lock(&inode->i_lock); - before = &inode->i_flock; - - while ((fl = *before) != NULL) { - if (fl->fl_file == filp) { - if (IS_LEASE(fl)) { - lease_modify(before, F_UNLCK, &dispose); - continue; - } - - /* - * There's a leftover lock on the list of a type that - * we didn't expect to see. Most likely a classic - * POSIX lock that ended up not getting released - * properly, or that raced onto the list somehow. Log - * some info about it and then just remove it from - * the list. - */ - WARN(!IS_FLOCK(fl), - "leftover lock: dev=%u:%u ino=%lu type=%hhd flags=0x%x start=%lld end=%lld\n", - MAJOR(inode->i_sb->s_dev), - MINOR(inode->i_sb->s_dev), inode->i_ino, - fl->fl_type, fl->fl_flags, - fl->fl_start, fl->fl_end); + /* remove flock locks */ + locks_remove_flock(filp); - locks_delete_lock(before, &dispose); - continue; - } - before = &fl->fl_next; - } - spin_unlock(&inode->i_lock); - locks_dispose_list(&dispose); + /* remove any leases */ + locks_remove_lease(filp); } /** @@ -2621,6 +2663,9 @@ static int __init filelock_init(void) { int i; + flctx_cache = kmem_cache_create("file_lock_ctx", + sizeof(struct file_lock_context), 0, SLAB_PANIC, NULL); + filelock_cache = kmem_cache_create("file_lock_cache", sizeof(struct file_lock), 0, SLAB_PANIC, NULL); diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index 7f3f606..8cdb2b2 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -85,25 +85,30 @@ static int nfs_delegation_claim_locks(struct nfs_open_context *ctx, struct nfs4_ { struct inode *inode = state->inode; struct file_lock *fl; + struct file_lock_context *flctx = inode->i_flctx; + struct list_head *list; int status = 0; - if (inode->i_flock == NULL) + if (flctx == NULL) goto out; - /* Protect inode->i_flock using the i_lock */ - spin_lock(&inode->i_lock); - for (fl = inode->i_flock; fl != NULL; fl = fl->fl_next) { - if (!(fl->fl_flags & (FL_POSIX|FL_FLOCK))) - continue; + list = &flctx->flc_posix; + spin_lock(&flctx->flc_lock); +restart: + list_for_each_entry(fl, list, fl_list) { if (nfs_file_open_context(fl->fl_file) != ctx) continue; - spin_unlock(&inode->i_lock); + spin_unlock(&flctx->flc_lock); status = nfs4_lock_delegation_recall(fl, state, stateid); if (status < 0) goto out; - spin_lock(&inode->i_lock); + spin_lock(&flctx->flc_lock); } - spin_unlock(&inode->i_lock); + if (list == &flctx->flc_posix) { + list = &flctx->flc_flock; + goto restart; + } + spin_unlock(&flctx->flc_lock); out: return status; } diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 5194933..a3bb22a 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -1366,49 +1366,55 @@ static int nfs4_reclaim_locks(struct nfs4_state *state, const struct nfs4_state_ struct nfs_inode *nfsi = NFS_I(inode); struct file_lock *fl; int status = 0; + struct file_lock_context *flctx = inode->i_flctx; + struct list_head *list; - if (inode->i_flock == NULL) + if (flctx == NULL) return 0; + list = &flctx->flc_posix; + /* Guard against delegation returns and new lock/unlock calls */ down_write(&nfsi->rwsem); - /* Protect inode->i_flock using the BKL */ - spin_lock(&inode->i_lock); - for (fl = inode->i_flock; fl != NULL; fl = fl->fl_next) { - if (!(fl->fl_flags & (FL_POSIX|FL_FLOCK))) - continue; + spin_lock(&flctx->flc_lock); +restart: + list_for_each_entry(fl, list, fl_list) { if (nfs_file_open_context(fl->fl_file)->state != state) continue; - spin_unlock(&inode->i_lock); + spin_unlock(&flctx->flc_lock); status = ops->recover_lock(state, fl); switch (status) { - case 0: - break; - case -ESTALE: - case -NFS4ERR_ADMIN_REVOKED: - case -NFS4ERR_STALE_STATEID: - case -NFS4ERR_BAD_STATEID: - case -NFS4ERR_EXPIRED: - case -NFS4ERR_NO_GRACE: - case -NFS4ERR_STALE_CLIENTID: - case -NFS4ERR_BADSESSION: - case -NFS4ERR_BADSLOT: - case -NFS4ERR_BAD_HIGH_SLOT: - case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION: - goto out; - default: - printk(KERN_ERR "NFS: %s: unhandled error %d\n", - __func__, status); - case -ENOMEM: - case -NFS4ERR_DENIED: - case -NFS4ERR_RECLAIM_BAD: - case -NFS4ERR_RECLAIM_CONFLICT: - /* kill_proc(fl->fl_pid, SIGLOST, 1); */ - status = 0; + case 0: + break; + case -ESTALE: + case -NFS4ERR_ADMIN_REVOKED: + case -NFS4ERR_STALE_STATEID: + case -NFS4ERR_BAD_STATEID: + case -NFS4ERR_EXPIRED: + case -NFS4ERR_NO_GRACE: + case -NFS4ERR_STALE_CLIENTID: + case -NFS4ERR_BADSESSION: + case -NFS4ERR_BADSLOT: + case -NFS4ERR_BAD_HIGH_SLOT: + case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION: + goto out; + default: + pr_err("NFS: %s: unhandled error %d\n", + __func__, status); + case -ENOMEM: + case -NFS4ERR_DENIED: + case -NFS4ERR_RECLAIM_BAD: + case -NFS4ERR_RECLAIM_CONFLICT: + /* kill_proc(fl->fl_pid, SIGLOST, 1); */ + status = 0; } - spin_lock(&inode->i_lock); + spin_lock(&flctx->flc_lock); } - spin_unlock(&inode->i_lock); + if (list == &flctx->flc_posix) { + list = &flctx->flc_flock; + goto restart; + } + spin_unlock(&flctx->flc_lock); out: up_write(&nfsi->rwsem); return status; diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index 2b5e769..29c7f33 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -826,11 +826,15 @@ static bool nfs_can_coalesce_requests(struct nfs_page *prev, struct nfs_pageio_descriptor *pgio) { size_t size; + struct file_lock_context *flctx; if (prev) { if (!nfs_match_open_context(req->wb_context, prev->wb_context)) return false; - if (req->wb_context->dentry->d_inode->i_flock != NULL && + flctx = req->wb_context->dentry->d_inode->i_flctx; + if (flctx != NULL && + !(list_empty_careful(&flctx->flc_posix) && + list_empty_careful(&flctx->flc_flock)) && !nfs_match_lock_context(req->wb_lock_context, prev->wb_lock_context)) return false; diff --git a/fs/nfs/write.c b/fs/nfs/write.c index af3af68..4ae66f41 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -1091,6 +1091,7 @@ int nfs_flush_incompatible(struct file *file, struct page *page) { struct nfs_open_context *ctx = nfs_file_open_context(file); struct nfs_lock_context *l_ctx; + struct file_lock_context *flctx = file_inode(file)->i_flctx; struct nfs_page *req; int do_flush, status; /* @@ -1109,7 +1110,9 @@ int nfs_flush_incompatible(struct file *file, struct page *page) do_flush = req->wb_page != page || req->wb_context != ctx; /* for now, flush if more than 1 request in page_group */ do_flush |= req->wb_this_page != req; - if (l_ctx && ctx->dentry->d_inode->i_flock != NULL) { + if (l_ctx && flctx && + !(list_empty_careful(&flctx->flc_posix) && + list_empty_careful(&flctx->flc_flock))) { do_flush |= l_ctx->lockowner.l_owner != current->files || l_ctx->lockowner.l_pid != current->tgid; } @@ -1170,6 +1173,13 @@ out: return PageUptodate(page) != 0; } +static bool +is_whole_file_wrlock(struct file_lock *fl) +{ + return fl->fl_start == 0 && fl->fl_end == OFFSET_MAX && + fl->fl_type == F_WRLCK; +} + /* If we know the page is up to date, and we're not using byte range locks (or * if we have the whole file locked for writing), it may be more efficient to * extend the write to cover the entire page in order to avoid fragmentation @@ -1180,17 +1190,36 @@ out: */ static int nfs_can_extend_write(struct file *file, struct page *page, struct inode *inode) { + int ret; + struct file_lock_context *flctx = inode->i_flctx; + struct file_lock *fl; + if (file->f_flags & O_DSYNC) return 0; if (!nfs_write_pageuptodate(page, inode)) return 0; if (NFS_PROTO(inode)->have_delegation(inode, FMODE_WRITE)) return 1; - if (inode->i_flock == NULL || (inode->i_flock->fl_start == 0 && - inode->i_flock->fl_end == OFFSET_MAX && - inode->i_flock->fl_type != F_RDLCK)) - return 1; - return 0; + if (!flctx || (list_empty_careful(&flctx->flc_flock) && + list_empty_careful(&flctx->flc_posix))) + return 0; + + /* Check to see if there are whole file write locks */ + ret = 0; + spin_lock(&flctx->flc_lock); + if (!list_empty(&flctx->flc_posix)) { + fl = list_first_entry(&flctx->flc_posix, struct file_lock, + fl_list); + if (is_whole_file_wrlock(fl)) + ret = 1; + } else if (!list_empty(&flctx->flc_flock)) { + fl = list_first_entry(&flctx->flc_flock, struct file_lock, + fl_list); + if (fl->fl_type == F_WRLCK) + ret = 1; + } + spin_unlock(&flctx->flc_lock); + return ret; } /* diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 1f4b85b..370a53a 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -3472,7 +3472,8 @@ nfsd_break_deleg_cb(struct file_lock *fl) } static int -nfsd_change_deleg_cb(struct file_lock **onlist, int arg, struct list_head *dispose) +nfsd_change_deleg_cb(struct file_lock *onlist, int arg, + struct list_head *dispose) { if (arg & F_UNLCK) return lease_modify(onlist, arg, dispose); @@ -5551,10 +5552,11 @@ out_nfserr: static bool check_for_locks(struct nfs4_file *fp, struct nfs4_lockowner *lowner) { - struct file_lock **flpp; + struct file_lock *fl; int status = false; struct file *filp = find_any_file(fp); struct inode *inode; + struct file_lock_context *flctx; if (!filp) { /* Any valid lock stateid should have some sort of access */ @@ -5563,15 +5565,18 @@ check_for_locks(struct nfs4_file *fp, struct nfs4_lockowner *lowner) } inode = file_inode(filp); + flctx = inode->i_flctx; - spin_lock(&inode->i_lock); - for (flpp = &inode->i_flock; *flpp != NULL; flpp = &(*flpp)->fl_next) { - if ((*flpp)->fl_owner == (fl_owner_t)lowner) { - status = true; - break; + if (flctx && !list_empty_careful(&flctx->flc_posix)) { + spin_lock(&flctx->flc_lock); + list_for_each_entry(fl, &flctx->flc_posix, fl_list) { + if (fl->fl_owner == (fl_owner_t)lowner) { + status = true; + break; + } } + spin_unlock(&flctx->flc_lock); } - spin_unlock(&inode->i_lock); fput(filp); return status; } diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index c991616..bff8567 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -259,16 +259,15 @@ static ssize_t fanotify_read(struct file *file, char __user *buf, struct fsnotify_event *kevent; char __user *start; int ret; - DEFINE_WAIT(wait); + DEFINE_WAIT_FUNC(wait, woken_wake_function); start = buf; group = file->private_data; pr_debug("%s: group=%p\n", __func__, group); + add_wait_queue(&group->notification_waitq, &wait); while (1) { - prepare_to_wait(&group->notification_waitq, &wait, TASK_INTERRUPTIBLE); - mutex_lock(&group->notification_mutex); kevent = get_one_event(group, count); mutex_unlock(&group->notification_mutex); @@ -289,7 +288,8 @@ static ssize_t fanotify_read(struct file *file, char __user *buf, if (start != buf) break; - schedule(); + + wait_woken(&wait, TASK_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT); continue; } @@ -318,8 +318,8 @@ static ssize_t fanotify_read(struct file *file, char __user *buf, buf += ret; count -= ret; } + remove_wait_queue(&group->notification_waitq, &wait); - finish_wait(&group->notification_waitq, &wait); if (start != buf && ret != -EFAULT) ret = buf - start; return ret; diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index 79b5af5..cecd875 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -2023,11 +2023,8 @@ leave: dlm_lockres_drop_inflight_ref(dlm, res); spin_unlock(&res->spinlock); - if (ret < 0) { + if (ret < 0) mlog_errno(ret); - if (newlock) - dlm_lock_put(newlock); - } return ret; } diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c index b931e04..914c121 100644 --- a/fs/ocfs2/namei.c +++ b/fs/ocfs2/namei.c @@ -94,6 +94,14 @@ static int ocfs2_create_symlink_data(struct ocfs2_super *osb, struct inode *inode, const char *symname); +static int ocfs2_double_lock(struct ocfs2_super *osb, + struct buffer_head **bh1, + struct inode *inode1, + struct buffer_head **bh2, + struct inode *inode2, + int rename); + +static void ocfs2_double_unlock(struct inode *inode1, struct inode *inode2); /* An orphan dir name is an 8 byte value, printed as a hex string */ #define OCFS2_ORPHAN_NAMELEN ((int)(2 * sizeof(u64))) @@ -678,8 +686,10 @@ static int ocfs2_link(struct dentry *old_dentry, { handle_t *handle; struct inode *inode = old_dentry->d_inode; + struct inode *old_dir = old_dentry->d_parent->d_inode; int err; struct buffer_head *fe_bh = NULL; + struct buffer_head *old_dir_bh = NULL; struct buffer_head *parent_fe_bh = NULL; struct ocfs2_dinode *fe = NULL; struct ocfs2_super *osb = OCFS2_SB(dir->i_sb); @@ -696,19 +706,33 @@ static int ocfs2_link(struct dentry *old_dentry, dquot_initialize(dir); - err = ocfs2_inode_lock_nested(dir, &parent_fe_bh, 1, OI_LS_PARENT); + err = ocfs2_double_lock(osb, &old_dir_bh, old_dir, + &parent_fe_bh, dir, 0); if (err < 0) { if (err != -ENOENT) mlog_errno(err); return err; } + /* make sure both dirs have bhs + * get an extra ref on old_dir_bh if old==new */ + if (!parent_fe_bh) { + if (old_dir_bh) { + parent_fe_bh = old_dir_bh; + get_bh(parent_fe_bh); + } else { + mlog(ML_ERROR, "%s: no old_dir_bh!\n", osb->uuid_str); + err = -EIO; + goto out; + } + } + if (!dir->i_nlink) { err = -ENOENT; goto out; } - err = ocfs2_lookup_ino_from_name(dir, old_dentry->d_name.name, + err = ocfs2_lookup_ino_from_name(old_dir, old_dentry->d_name.name, old_dentry->d_name.len, &old_de_ino); if (err) { err = -ENOENT; @@ -801,10 +825,11 @@ out_unlock_inode: ocfs2_inode_unlock(inode, 1); out: - ocfs2_inode_unlock(dir, 1); + ocfs2_double_unlock(old_dir, dir); brelse(fe_bh); brelse(parent_fe_bh); + brelse(old_dir_bh); ocfs2_free_dir_lookup_result(&lookup); @@ -1072,14 +1097,15 @@ static int ocfs2_check_if_ancestor(struct ocfs2_super *osb, } /* - * The only place this should be used is rename! + * The only place this should be used is rename and link! * if they have the same id, then the 1st one is the only one locked. */ static int ocfs2_double_lock(struct ocfs2_super *osb, struct buffer_head **bh1, struct inode *inode1, struct buffer_head **bh2, - struct inode *inode2) + struct inode *inode2, + int rename) { int status; int inode1_is_ancestor, inode2_is_ancestor; @@ -1127,7 +1153,7 @@ static int ocfs2_double_lock(struct ocfs2_super *osb, } /* lock id2 */ status = ocfs2_inode_lock_nested(inode2, bh2, 1, - OI_LS_RENAME1); + rename == 1 ? OI_LS_RENAME1 : OI_LS_PARENT); if (status < 0) { if (status != -ENOENT) mlog_errno(status); @@ -1136,7 +1162,8 @@ static int ocfs2_double_lock(struct ocfs2_super *osb, } /* lock id1 */ - status = ocfs2_inode_lock_nested(inode1, bh1, 1, OI_LS_RENAME2); + status = ocfs2_inode_lock_nested(inode1, bh1, 1, + rename == 1 ? OI_LS_RENAME2 : OI_LS_PARENT); if (status < 0) { /* * An error return must mean that no cluster locks @@ -1252,7 +1279,7 @@ static int ocfs2_rename(struct inode *old_dir, /* if old and new are the same, this'll just do one lock. */ status = ocfs2_double_lock(osb, &old_dir_bh, old_dir, - &new_dir_bh, new_dir); + &new_dir_bh, new_dir, 1); if (status < 0) { mlog_errno(status); goto bail; diff --git a/fs/read_write.c b/fs/read_write.c index c0805c9..4060691 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -358,7 +358,7 @@ int rw_verify_area(int read_write, struct file *file, const loff_t *ppos, size_t return retval; } - if (unlikely(inode->i_flock && mandatory_lock(inode))) { + if (unlikely(inode->i_flctx && mandatory_lock(inode))) { retval = locks_mandatory_area( read_write == READ ? FLOCK_VERIFY_READ : FLOCK_VERIFY_WRITE, inode, file, pos, count); diff --git a/include/acpi/processor.h b/include/acpi/processor.h index 3ca9b75..b95dc32 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h @@ -196,8 +196,8 @@ struct acpi_processor_flags { struct acpi_processor { acpi_handle handle; u32 acpi_id; - u32 apic_id; - u32 id; + u32 phys_id; /* CPU hardware ID such as APIC ID for x86 */ + u32 id; /* CPU logical ID allocated by OS */ u32 pblk; int performance_platform_limit; int throttling_platform_limit; @@ -310,8 +310,8 @@ static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit) #endif /* CONFIG_CPU_FREQ */ /* in processor_core.c */ -int acpi_get_apicid(acpi_handle, int type, u32 acpi_id); -int acpi_map_cpuid(int apic_id, u32 acpi_id); +int acpi_get_phys_id(acpi_handle, int type, u32 acpi_id); +int acpi_map_cpuid(int phys_id, u32 acpi_id); int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id); /* in processor_pdc.c */ diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index 0884805..db284bf 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -136,8 +136,12 @@ static inline void __tlb_adjust_range(struct mmu_gather *tlb, static inline void __tlb_reset_range(struct mmu_gather *tlb) { - tlb->start = TASK_SIZE; - tlb->end = 0; + if (tlb->fullmm) { + tlb->start = tlb->end = ~0; + } else { + tlb->start = TASK_SIZE; + tlb->end = 0; + } } /* diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 856d381..d459cd1 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -147,8 +147,8 @@ void acpi_numa_arch_fixup(void); #ifdef CONFIG_ACPI_HOTPLUG_CPU /* Arch dependent functions for cpu hotplug support */ -int acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu); -int acpi_unmap_lsapic(int cpu); +int acpi_map_cpu(acpi_handle handle, int physid, int *pcpu); +int acpi_unmap_cpu(int cpu); #endif /* CONFIG_ACPI_HOTPLUG_CPU */ int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index 8aded9a..5735e71 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -34,7 +34,6 @@ struct blk_mq_hw_ctx { unsigned long flags; /* BLK_MQ_F_* flags */ struct request_queue *queue; - unsigned int queue_num; struct blk_flush_queue *fq; void *driver_data; @@ -54,7 +53,7 @@ struct blk_mq_hw_ctx { unsigned long dispatched[BLK_MQ_MAX_DISPATCH_ORDER]; unsigned int numa_node; - unsigned int cmd_size; /* per-request extra data */ + unsigned int queue_num; atomic_t nr_active; @@ -195,13 +194,16 @@ static inline u16 blk_mq_unique_tag_to_tag(u32 unique_tag) struct blk_mq_hw_ctx *blk_mq_map_queue(struct request_queue *, const int ctx_index); struct blk_mq_hw_ctx *blk_mq_alloc_single_hw_queue(struct blk_mq_tag_set *, unsigned int, int); +int blk_mq_request_started(struct request *rq); void blk_mq_start_request(struct request *rq); void blk_mq_end_request(struct request *rq, int error); void __blk_mq_end_request(struct request *rq, int error); void blk_mq_requeue_request(struct request *rq); void blk_mq_add_to_requeue_list(struct request *rq, bool at_head); +void blk_mq_cancel_requeue_work(struct request_queue *q); void blk_mq_kick_requeue_list(struct request_queue *q); +void blk_mq_abort_requeue_list(struct request_queue *q); void blk_mq_complete_request(struct request *rq); void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx); @@ -212,6 +214,8 @@ void blk_mq_start_stopped_hw_queues(struct request_queue *q, bool async); void blk_mq_delay_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs); void blk_mq_tag_busy_iter(struct blk_mq_hw_ctx *hctx, busy_iter_fn *fn, void *priv); +void blk_mq_unfreeze_queue(struct request_queue *q); +void blk_mq_freeze_queue_start(struct request_queue *q); /* * Driver command data is immediately after the request. So subtract request diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index 445d592..c294e3e 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -190,6 +190,7 @@ enum rq_flag_bits { __REQ_PM, /* runtime pm request */ __REQ_HASHED, /* on IO scheduler merge hash */ __REQ_MQ_INFLIGHT, /* track inflight for MQ */ + __REQ_NO_TIMEOUT, /* requests may never expire */ __REQ_NR_BITS, /* stops here */ }; @@ -243,5 +244,6 @@ enum rq_flag_bits { #define REQ_PM (1ULL << __REQ_PM) #define REQ_HASHED (1ULL << __REQ_HASHED) #define REQ_MQ_INFLIGHT (1ULL << __REQ_MQ_INFLIGHT) +#define REQ_NO_TIMEOUT (1ULL << __REQ_NO_TIMEOUT) #endif /* __LINUX_BLK_TYPES_H */ diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h index 5d86416..61b19c4 100644 --- a/include/linux/ceph/osd_client.h +++ b/include/linux/ceph/osd_client.h @@ -87,8 +87,8 @@ struct ceph_osd_req_op { struct ceph_osd_data osd_data; } extent; struct { - __le32 name_len; - __le32 value_len; + u32 name_len; + u32 value_len; __u8 cmp_op; /* CEPH_OSD_CMPXATTR_OP_* */ __u8 cmp_mode; /* CEPH_OSD_CMPXATTR_MODE_* */ struct ceph_osd_data osd_data; diff --git a/include/linux/compiler.h b/include/linux/compiler.h index a1c81f8..33063f8 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -215,7 +215,7 @@ static __always_inline void __read_once_size(volatile void *p, void *res, int si } } -static __always_inline void __assign_once_size(volatile void *p, void *res, int size) +static __always_inline void __write_once_size(volatile void *p, void *res, int size) { switch (size) { case 1: *(volatile __u8 *)p = *(__u8 *)res; break; @@ -235,15 +235,15 @@ static __always_inline void __assign_once_size(volatile void *p, void *res, int /* * Prevent the compiler from merging or refetching reads or writes. The * compiler is also forbidden from reordering successive instances of - * READ_ONCE, ASSIGN_ONCE and ACCESS_ONCE (see below), but only when the + * READ_ONCE, WRITE_ONCE and ACCESS_ONCE (see below), but only when the * compiler is aware of some particular ordering. One way to make the * compiler aware of ordering is to put the two invocations of READ_ONCE, - * ASSIGN_ONCE or ACCESS_ONCE() in different C statements. + * WRITE_ONCE or ACCESS_ONCE() in different C statements. * * In contrast to ACCESS_ONCE these two macros will also work on aggregate * data types like structs or unions. If the size of the accessed data * type exceeds the word size of the machine (e.g., 32 bits or 64 bits) - * READ_ONCE() and ASSIGN_ONCE() will fall back to memcpy and print a + * READ_ONCE() and WRITE_ONCE() will fall back to memcpy and print a * compile-time warning. * * Their two major use cases are: (1) Mediating communication between @@ -257,8 +257,8 @@ static __always_inline void __assign_once_size(volatile void *p, void *res, int #define READ_ONCE(x) \ ({ typeof(x) __val; __read_once_size(&x, &__val, sizeof(__val)); __val; }) -#define ASSIGN_ONCE(val, x) \ - ({ typeof(x) __val; __val = val; __assign_once_size(&x, &__val, sizeof(__val)); __val; }) +#define WRITE_ONCE(x, val) \ + ({ typeof(x) __val; __val = val; __write_once_size(&x, &__val, sizeof(__val)); __val; }) #endif /* __KERNEL__ */ diff --git a/include/linux/fs.h b/include/linux/fs.h index f90c028..ddd2fa7 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -135,7 +135,7 @@ typedef void (dio_iodone_t)(struct kiocb *iocb, loff_t offset, #define FMODE_CAN_WRITE ((__force fmode_t)0x40000) /* File was opened by fanotify and shouldn't generate fanotify events */ -#define FMODE_NONOTIFY ((__force fmode_t)0x1000000) +#define FMODE_NONOTIFY ((__force fmode_t)0x4000000) /* * Flag for rw_copy_check_uvector and compat_rw_copy_check_uvector @@ -625,7 +625,7 @@ struct inode { atomic_t i_readcount; /* struct files open RO */ #endif const struct file_operations *i_fop; /* former ->i_op->default_file_ops */ - struct file_lock *i_flock; + struct file_lock_context *i_flctx; struct address_space i_data; struct list_head i_devices; union { @@ -885,6 +885,8 @@ static inline struct file *get_file(struct file *f) /* legacy typedef, should eventually be removed */ typedef void *fl_owner_t; +struct file_lock; + struct file_lock_operations { void (*fl_copy_lock)(struct file_lock *, struct file_lock *); void (*fl_release_private)(struct file_lock *); @@ -898,7 +900,7 @@ struct lock_manager_operations { void (*lm_notify)(struct file_lock *); /* unblock callback */ int (*lm_grant)(struct file_lock *, int); bool (*lm_break)(struct file_lock *); - int (*lm_change)(struct file_lock **, int, struct list_head *); + int (*lm_change)(struct file_lock *, int, struct list_head *); void (*lm_setup)(struct file_lock *, void **); }; @@ -923,17 +925,17 @@ int locks_in_grace(struct net *); * FIXME: should we create a separate "struct lock_request" to help distinguish * these two uses? * - * The i_flock list is ordered by: + * The varous i_flctx lists are ordered by: * - * 1) lock type -- FL_LEASEs first, then FL_FLOCK, and finally FL_POSIX - * 2) lock owner - * 3) lock range start - * 4) lock range end + * 1) lock owner + * 2) lock range start + * 3) lock range end * * Obviously, the last two criteria only matter for POSIX locks. */ struct file_lock { struct file_lock *fl_next; /* singly linked list for this inode */ + struct list_head fl_list; /* link into file_lock_context */ struct hlist_node fl_link; /* node in global lists */ struct list_head fl_block; /* circular list of blocked processes */ fl_owner_t fl_owner; @@ -964,6 +966,16 @@ struct file_lock { } fl_u; }; +struct file_lock_context { + spinlock_t flc_lock; + struct list_head flc_flock; + struct list_head flc_posix; + struct list_head flc_lease; + int flc_flock_cnt; + int flc_posix_cnt; + int flc_lease_cnt; +}; + /* The following constant reflects the upper bound of the file/locking space */ #ifndef OFFSET_MAX #define INT_LIMIT(x) (~((x)1 << (sizeof(x)*8 - 1))) @@ -990,6 +1002,7 @@ extern int fcntl_setlease(unsigned int fd, struct file *filp, long arg); extern int fcntl_getlease(struct file *filp); /* fs/locks.c */ +void locks_free_lock_context(struct file_lock_context *ctx); void locks_free_lock(struct file_lock *fl); extern void locks_init_lock(struct file_lock *); extern struct file_lock * locks_alloc_lock(void); @@ -1010,7 +1023,7 @@ extern int __break_lease(struct inode *inode, unsigned int flags, unsigned int t extern void lease_get_mtime(struct inode *, struct timespec *time); extern int generic_setlease(struct file *, long, struct file_lock **, void **priv); extern int vfs_setlease(struct file *, long, struct file_lock **, void **); -extern int lease_modify(struct file_lock **, int, struct list_head *); +extern int lease_modify(struct file_lock *, int, struct list_head *); #else /* !CONFIG_FILE_LOCKING */ static inline int fcntl_getlk(struct file *file, unsigned int cmd, struct flock __user *user) @@ -1047,6 +1060,11 @@ static inline int fcntl_getlease(struct file *filp) return F_UNLCK; } +static inline void +locks_free_lock_context(struct file_lock_context *ctx) +{ +} + static inline void locks_init_lock(struct file_lock *fl) { return; @@ -1137,7 +1155,7 @@ static inline int vfs_setlease(struct file *filp, long arg, return -EINVAL; } -static inline int lease_modify(struct file_lock **before, int arg, +static inline int lease_modify(struct file_lock *fl, int arg, struct list_head *dispose) { return -EINVAL; @@ -1959,7 +1977,7 @@ static inline int locks_verify_truncate(struct inode *inode, struct file *filp, loff_t size) { - if (inode->i_flock && mandatory_lock(inode)) + if (inode->i_flctx && mandatory_lock(inode)) return locks_mandatory_area( FLOCK_VERIFY_WRITE, inode, filp, size < inode->i_size ? size : inode->i_size, @@ -1973,11 +1991,12 @@ static inline int break_lease(struct inode *inode, unsigned int mode) { /* * Since this check is lockless, we must ensure that any refcounts - * taken are done before checking inode->i_flock. Otherwise, we could - * end up racing with tasks trying to set a new lease on this file. + * taken are done before checking i_flctx->flc_lease. Otherwise, we + * could end up racing with tasks trying to set a new lease on this + * file. */ smp_mb(); - if (inode->i_flock) + if (inode->i_flctx && !list_empty_careful(&inode->i_flctx->flc_lease)) return __break_lease(inode, mode, FL_LEASE); return 0; } @@ -1986,11 +2005,12 @@ static inline int break_deleg(struct inode *inode, unsigned int mode) { /* * Since this check is lockless, we must ensure that any refcounts - * taken are done before checking inode->i_flock. Otherwise, we could - * end up racing with tasks trying to set a new lease on this file. + * taken are done before checking i_flctx->flc_lease. Otherwise, we + * could end up racing with tasks trying to set a new lease on this + * file. */ smp_mb(); - if (inode->i_flock) + if (inode->i_flctx && !list_empty_careful(&inode->i_flctx->flc_lease)) return __break_lease(inode, mode, FL_DELEG); return 0; } diff --git a/include/linux/kdb.h b/include/linux/kdb.h index 290db12..75ae2e2 100644 --- a/include/linux/kdb.h +++ b/include/linux/kdb.h @@ -13,11 +13,54 @@ * Copyright (C) 2009 Jason Wessel <jason.wessel@windriver.com> */ +/* Shifted versions of the command enable bits are be used if the command + * has no arguments (see kdb_check_flags). This allows commands, such as + * go, to have different permissions depending upon whether it is called + * with an argument. + */ +#define KDB_ENABLE_NO_ARGS_SHIFT 10 + typedef enum { - KDB_REPEAT_NONE = 0, /* Do not repeat this command */ - KDB_REPEAT_NO_ARGS, /* Repeat the command without arguments */ - KDB_REPEAT_WITH_ARGS, /* Repeat the command including its arguments */ -} kdb_repeat_t; + KDB_ENABLE_ALL = (1 << 0), /* Enable everything */ + KDB_ENABLE_MEM_READ = (1 << 1), + KDB_ENABLE_MEM_WRITE = (1 << 2), + KDB_ENABLE_REG_READ = (1 << 3), + KDB_ENABLE_REG_WRITE = (1 << 4), + KDB_ENABLE_INSPECT = (1 << 5), + KDB_ENABLE_FLOW_CTRL = (1 << 6), + KDB_ENABLE_SIGNAL = (1 << 7), + KDB_ENABLE_REBOOT = (1 << 8), + /* User exposed values stop here, all remaining flags are + * exclusively used to describe a commands behaviour. + */ + + KDB_ENABLE_ALWAYS_SAFE = (1 << 9), + KDB_ENABLE_MASK = (1 << KDB_ENABLE_NO_ARGS_SHIFT) - 1, + + KDB_ENABLE_ALL_NO_ARGS = KDB_ENABLE_ALL << KDB_ENABLE_NO_ARGS_SHIFT, + KDB_ENABLE_MEM_READ_NO_ARGS = KDB_ENABLE_MEM_READ + << KDB_ENABLE_NO_ARGS_SHIFT, + KDB_ENABLE_MEM_WRITE_NO_ARGS = KDB_ENABLE_MEM_WRITE + << KDB_ENABLE_NO_ARGS_SHIFT, + KDB_ENABLE_REG_READ_NO_ARGS = KDB_ENABLE_REG_READ + << KDB_ENABLE_NO_ARGS_SHIFT, + KDB_ENABLE_REG_WRITE_NO_ARGS = KDB_ENABLE_REG_WRITE + << KDB_ENABLE_NO_ARGS_SHIFT, + KDB_ENABLE_INSPECT_NO_ARGS = KDB_ENABLE_INSPECT + << KDB_ENABLE_NO_ARGS_SHIFT, + KDB_ENABLE_FLOW_CTRL_NO_ARGS = KDB_ENABLE_FLOW_CTRL + << KDB_ENABLE_NO_ARGS_SHIFT, + KDB_ENABLE_SIGNAL_NO_ARGS = KDB_ENABLE_SIGNAL + << KDB_ENABLE_NO_ARGS_SHIFT, + KDB_ENABLE_REBOOT_NO_ARGS = KDB_ENABLE_REBOOT + << KDB_ENABLE_NO_ARGS_SHIFT, + KDB_ENABLE_ALWAYS_SAFE_NO_ARGS = KDB_ENABLE_ALWAYS_SAFE + << KDB_ENABLE_NO_ARGS_SHIFT, + KDB_ENABLE_MASK_NO_ARGS = KDB_ENABLE_MASK << KDB_ENABLE_NO_ARGS_SHIFT, + + KDB_REPEAT_NO_ARGS = 0x40000000, /* Repeat the command w/o arguments */ + KDB_REPEAT_WITH_ARGS = 0x80000000, /* Repeat the command with args */ +} kdb_cmdflags_t; typedef int (*kdb_func_t)(int, const char **); @@ -62,6 +105,7 @@ extern atomic_t kdb_event; #define KDB_BADLENGTH (-19) #define KDB_NOBP (-20) #define KDB_BADADDR (-21) +#define KDB_NOPERM (-22) /* * kdb_diemsg @@ -146,17 +190,17 @@ static inline const char *kdb_walk_kallsyms(loff_t *pos) /* Dynamic kdb shell command registration */ extern int kdb_register(char *, kdb_func_t, char *, char *, short); -extern int kdb_register_repeat(char *, kdb_func_t, char *, char *, - short, kdb_repeat_t); +extern int kdb_register_flags(char *, kdb_func_t, char *, char *, + short, kdb_cmdflags_t); extern int kdb_unregister(char *); #else /* ! CONFIG_KGDB_KDB */ static inline __printf(1, 2) int kdb_printf(const char *fmt, ...) { return 0; } static inline void kdb_init(int level) {} static inline int kdb_register(char *cmd, kdb_func_t func, char *usage, char *help, short minlen) { return 0; } -static inline int kdb_register_repeat(char *cmd, kdb_func_t func, char *usage, - char *help, short minlen, - kdb_repeat_t repeat) { return 0; } +static inline int kdb_register_flags(char *cmd, kdb_func_t func, char *usage, + char *help, short minlen, + kdb_cmdflags_t flags) { return 0; } static inline int kdb_unregister(char *cmd) { return 0; } #endif /* CONFIG_KGDB_KDB */ enum { diff --git a/include/linux/mm.h b/include/linux/mm.h index f80d019..80fc92a 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1952,7 +1952,7 @@ extern int expand_downwards(struct vm_area_struct *vma, #if VM_GROWSUP extern int expand_upwards(struct vm_area_struct *vma, unsigned long address); #else - #define expand_upwards(vma, address) do { } while (0) + #define expand_upwards(vma, address) (0) #endif /* Look up the first VMA which satisfies addr < vm_end, NULL if none. */ diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h index 375af80..f767a0d 100644 --- a/include/linux/mmc/sdhci.h +++ b/include/linux/mmc/sdhci.h @@ -137,6 +137,7 @@ struct sdhci_host { #define SDHCI_SDR104_NEEDS_TUNING (1<<10) /* SDR104/HS200 needs tuning */ #define SDHCI_USING_RETUNING_TIMER (1<<11) /* Host is using a retuning timer for the card */ #define SDHCI_USE_64_BIT_DMA (1<<12) /* Use 64-bit DMA */ +#define SDHCI_HS400_TUNING (1<<13) /* Tuning for HS400 */ unsigned int version; /* SDHCI spec. version */ diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 679e6e90..52fd8e8 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -852,11 +852,11 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev, * 3. Update dev->stats asynchronously and atomically, and define * neither operation. * - * int (*ndo_vlan_rx_add_vid)(struct net_device *dev, __be16 proto, u16t vid); + * int (*ndo_vlan_rx_add_vid)(struct net_device *dev, __be16 proto, u16 vid); * If device support VLAN filtering this function is called when a * VLAN id is registered. * - * int (*ndo_vlan_rx_kill_vid)(struct net_device *dev, unsigned short vid); + * int (*ndo_vlan_rx_kill_vid)(struct net_device *dev, __be16 proto, u16 vid); * If device support VLAN filtering this function is called when a * VLAN id is unregistered. * @@ -2085,7 +2085,7 @@ extern rwlock_t dev_base_lock; /* Device list lock */ list_for_each_entry_continue_rcu(d, &(net)->dev_base_head, dev_list) #define for_each_netdev_in_bond_rcu(bond, slave) \ for_each_netdev_rcu(&init_net, slave) \ - if (netdev_master_upper_dev_get_rcu(slave) == bond) + if (netdev_master_upper_dev_get_rcu(slave) == (bond)) #define net_device_entry(lh) list_entry(lh, struct net_device, dev_list) static inline struct net_device *next_net_device(struct net_device *dev) diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 486e84c..4f7a61c 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -79,11 +79,6 @@ struct perf_branch_stack { struct perf_branch_entry entries[0]; }; -struct perf_regs { - __u64 abi; - struct pt_regs *regs; -}; - struct task_struct; /* @@ -610,7 +605,14 @@ struct perf_sample_data { u32 reserved; } cpu_entry; struct perf_callchain_entry *callchain; + + /* + * regs_user may point to task_pt_regs or to regs_user_copy, depending + * on arch details. + */ struct perf_regs regs_user; + struct pt_regs regs_user_copy; + struct perf_regs regs_intr; u64 stack_user_size; } ____cacheline_aligned; diff --git a/include/linux/perf_regs.h b/include/linux/perf_regs.h index 3c73d5f..a5f98d5 100644 --- a/include/linux/perf_regs.h +++ b/include/linux/perf_regs.h @@ -1,11 +1,19 @@ #ifndef _LINUX_PERF_REGS_H #define _LINUX_PERF_REGS_H +struct perf_regs { + __u64 abi; + struct pt_regs *regs; +}; + #ifdef CONFIG_HAVE_PERF_REGS #include <asm/perf_regs.h> u64 perf_reg_value(struct pt_regs *regs, int idx); int perf_reg_validate(u64 mask); u64 perf_reg_abi(struct task_struct *task); +void perf_get_regs_user(struct perf_regs *regs_user, + struct pt_regs *regs, + struct pt_regs *regs_user_copy); #else static inline u64 perf_reg_value(struct pt_regs *regs, int idx) { @@ -21,5 +29,13 @@ static inline u64 perf_reg_abi(struct task_struct *task) { return PERF_SAMPLE_REGS_ABI_NONE; } + +static inline void perf_get_regs_user(struct perf_regs *regs_user, + struct pt_regs *regs, + struct pt_regs *regs_user_copy) +{ + regs_user->regs = task_pt_regs(current); + regs_user->abi = perf_reg_abi(current); +} #endif /* CONFIG_HAVE_PERF_REGS */ #endif /* _LINUX_PERF_REGS_H */ diff --git a/include/linux/rmap.h b/include/linux/rmap.h index c0c2bce..d9d7e7e 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -37,6 +37,16 @@ struct anon_vma { atomic_t refcount; /* + * Count of child anon_vmas and VMAs which points to this anon_vma. + * + * This counter is used for making decision about reusing anon_vma + * instead of forking new one. See comments in function anon_vma_clone. + */ + unsigned degree; + + struct anon_vma *parent; /* Parent of this anon_vma */ + + /* * NOTE: the LSB of the rb_root.rb_node is set by * mm_take_all_locks() _after_ taking the above lock. So the * rb_root must only be read/written after taking the above lock diff --git a/include/linux/writeback.h b/include/linux/writeback.h index a219be9..0004833 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -177,7 +177,6 @@ int write_cache_pages(struct address_space *mapping, struct writeback_control *wbc, writepage_t writepage, void *data); int do_writepages(struct address_space *mapping, struct writeback_control *wbc); -void set_page_dirty_balance(struct page *page); void writeback_set_ratelimit(void); void tag_pages_for_writeback(struct address_space *mapping, pgoff_t start, pgoff_t end); diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 58d719d..29c7be8 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1270,8 +1270,7 @@ struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev); * * @IEEE80211_KEY_FLAG_GENERATE_IV: This flag should be set by the * driver to indicate that it requires IV generation for this - * particular key. Setting this flag does not necessarily mean that SKBs - * will have sufficient tailroom for ICV or MIC. + * particular key. * @IEEE80211_KEY_FLAG_GENERATE_MMIC: This flag should be set by * the driver for a TKIP key if it requires Michael MIC * generation in software. @@ -1283,9 +1282,7 @@ struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev); * @IEEE80211_KEY_FLAG_PUT_IV_SPACE: This flag should be set by the driver * if space should be prepared for the IV, but the IV * itself should not be generated. Do not set together with - * @IEEE80211_KEY_FLAG_GENERATE_IV on the same key. Setting this flag does - * not necessarily mean that SKBs will have sufficient tailroom for ICV or - * MIC. + * @IEEE80211_KEY_FLAG_GENERATE_IV on the same key. * @IEEE80211_KEY_FLAG_RX_MGMT: This key will be used to decrypt received * management frames. The flag can help drivers that have a hardware * crypto implementation that doesn't deal with management frames diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h index 430cfaf..db81c65 100644 --- a/include/target/target_core_backend.h +++ b/include/target/target_core_backend.h @@ -135,7 +135,6 @@ int se_dev_set_is_nonrot(struct se_device *, int); int se_dev_set_emulate_rest_reord(struct se_device *dev, int); int se_dev_set_queue_depth(struct se_device *, u32); int se_dev_set_max_sectors(struct se_device *, u32); -int se_dev_set_fabric_max_sectors(struct se_device *, u32); int se_dev_set_optimal_sectors(struct se_device *, u32); int se_dev_set_block_size(struct se_device *, u32); diff --git a/include/target/target_core_backend_configfs.h b/include/target/target_core_backend_configfs.h index 3247d75..186f7a9 100644 --- a/include/target/target_core_backend_configfs.h +++ b/include/target/target_core_backend_configfs.h @@ -98,8 +98,6 @@ static struct target_backend_dev_attrib_attribute _backend##_dev_attrib_##_name TB_DEV_ATTR(_backend, block_size, S_IRUGO | S_IWUSR); \ DEF_TB_DEV_ATTRIB_RO(_backend, hw_max_sectors); \ TB_DEV_ATTR_RO(_backend, hw_max_sectors); \ - DEF_TB_DEV_ATTRIB(_backend, fabric_max_sectors); \ - TB_DEV_ATTR(_backend, fabric_max_sectors, S_IRUGO | S_IWUSR); \ DEF_TB_DEV_ATTRIB(_backend, optimal_sectors); \ TB_DEV_ATTR(_backend, optimal_sectors, S_IRUGO | S_IWUSR); \ DEF_TB_DEV_ATTRIB_RO(_backend, hw_queue_depth); \ diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 397fb63..4a8795a 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -77,8 +77,6 @@ #define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0 /* Default max_write_same_len, disabled by default */ #define DA_MAX_WRITE_SAME_LEN 0 -/* Default max transfer length */ -#define DA_FABRIC_MAX_SECTORS 8192 /* Use a model alias based on the configfs backend device name */ #define DA_EMULATE_MODEL_ALIAS 0 /* Emulation for Direct Page Out */ @@ -694,7 +692,6 @@ struct se_dev_attrib { u32 hw_block_size; u32 block_size; u32 hw_max_sectors; - u32 fabric_max_sectors; u32 optimal_sectors; u32 hw_queue_depth; u32 queue_depth; diff --git a/include/uapi/asm-generic/fcntl.h b/include/uapi/asm-generic/fcntl.h index 7543b3e..e063eff 100644 --- a/include/uapi/asm-generic/fcntl.h +++ b/include/uapi/asm-generic/fcntl.h @@ -5,7 +5,7 @@ /* * FMODE_EXEC is 0x20 - * FMODE_NONOTIFY is 0x1000000 + * FMODE_NONOTIFY is 0x4000000 * These cannot be used by userspace O_* until internal and external open * flags are split. * -Eric Paris diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h index 7acef41..af94f31 100644 --- a/include/uapi/linux/kfd_ioctl.h +++ b/include/uapi/linux/kfd_ioctl.h @@ -128,27 +128,34 @@ struct kfd_ioctl_get_process_apertures_args { uint32_t pad; }; -#define KFD_IOC_MAGIC 'K' +#define AMDKFD_IOCTL_BASE 'K' +#define AMDKFD_IO(nr) _IO(AMDKFD_IOCTL_BASE, nr) +#define AMDKFD_IOR(nr, type) _IOR(AMDKFD_IOCTL_BASE, nr, type) +#define AMDKFD_IOW(nr, type) _IOW(AMDKFD_IOCTL_BASE, nr, type) +#define AMDKFD_IOWR(nr, type) _IOWR(AMDKFD_IOCTL_BASE, nr, type) -#define KFD_IOC_GET_VERSION \ - _IOR(KFD_IOC_MAGIC, 1, struct kfd_ioctl_get_version_args) +#define AMDKFD_IOC_GET_VERSION \ + AMDKFD_IOR(0x01, struct kfd_ioctl_get_version_args) -#define KFD_IOC_CREATE_QUEUE \ - _IOWR(KFD_IOC_MAGIC, 2, struct kfd_ioctl_create_queue_args) +#define AMDKFD_IOC_CREATE_QUEUE \ + AMDKFD_IOWR(0x02, struct kfd_ioctl_create_queue_args) -#define KFD_IOC_DESTROY_QUEUE \ - _IOWR(KFD_IOC_MAGIC, 3, struct kfd_ioctl_destroy_queue_args) +#define AMDKFD_IOC_DESTROY_QUEUE \ + AMDKFD_IOWR(0x03, struct kfd_ioctl_destroy_queue_args) -#define KFD_IOC_SET_MEMORY_POLICY \ - _IOW(KFD_IOC_MAGIC, 4, struct kfd_ioctl_set_memory_policy_args) +#define AMDKFD_IOC_SET_MEMORY_POLICY \ + AMDKFD_IOW(0x04, struct kfd_ioctl_set_memory_policy_args) -#define KFD_IOC_GET_CLOCK_COUNTERS \ - _IOWR(KFD_IOC_MAGIC, 5, struct kfd_ioctl_get_clock_counters_args) +#define AMDKFD_IOC_GET_CLOCK_COUNTERS \ + AMDKFD_IOWR(0x05, struct kfd_ioctl_get_clock_counters_args) -#define KFD_IOC_GET_PROCESS_APERTURES \ - _IOR(KFD_IOC_MAGIC, 6, struct kfd_ioctl_get_process_apertures_args) +#define AMDKFD_IOC_GET_PROCESS_APERTURES \ + AMDKFD_IOR(0x06, struct kfd_ioctl_get_process_apertures_args) -#define KFD_IOC_UPDATE_QUEUE \ - _IOW(KFD_IOC_MAGIC, 7, struct kfd_ioctl_update_queue_args) +#define AMDKFD_IOC_UPDATE_QUEUE \ + AMDKFD_IOW(0x07, struct kfd_ioctl_update_queue_args) + +#define AMDKFD_COMMAND_START 0x01 +#define AMDKFD_COMMAND_END 0x08 #endif diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h index 3a6dcaa..f714e86 100644 --- a/include/uapi/linux/openvswitch.h +++ b/include/uapi/linux/openvswitch.h @@ -174,6 +174,10 @@ enum ovs_packet_attr { OVS_PACKET_ATTR_USERDATA, /* OVS_ACTION_ATTR_USERSPACE arg. */ OVS_PACKET_ATTR_EGRESS_TUN_KEY, /* Nested OVS_TUNNEL_KEY_ATTR_* attributes. */ + OVS_PACKET_ATTR_UNUSED1, + OVS_PACKET_ATTR_UNUSED2, + OVS_PACKET_ATTR_PROBE, /* Packet operation is a feature probe, + error logging should be suppressed. */ __OVS_PACKET_ATTR_MAX }; diff --git a/include/xen/interface/nmi.h b/include/xen/interface/nmi.h new file mode 100644 index 0000000..b47d9d0 --- /dev/null +++ b/include/xen/interface/nmi.h @@ -0,0 +1,51 @@ +/****************************************************************************** + * nmi.h + * + * NMI callback registration and reason codes. + * + * Copyright (c) 2005, Keir Fraser <keir@xensource.com> + */ + +#ifndef __XEN_PUBLIC_NMI_H__ +#define __XEN_PUBLIC_NMI_H__ + +#include <xen/interface/xen.h> + +/* + * NMI reason codes: + * Currently these are x86-specific, stored in arch_shared_info.nmi_reason. + */ + /* I/O-check error reported via ISA port 0x61, bit 6. */ +#define _XEN_NMIREASON_io_error 0 +#define XEN_NMIREASON_io_error (1UL << _XEN_NMIREASON_io_error) + /* PCI SERR reported via ISA port 0x61, bit 7. */ +#define _XEN_NMIREASON_pci_serr 1 +#define XEN_NMIREASON_pci_serr (1UL << _XEN_NMIREASON_pci_serr) + /* Unknown hardware-generated NMI. */ +#define _XEN_NMIREASON_unknown 2 +#define XEN_NMIREASON_unknown (1UL << _XEN_NMIREASON_unknown) + +/* + * long nmi_op(unsigned int cmd, void *arg) + * NB. All ops return zero on success, else a negative error code. + */ + +/* + * Register NMI callback for this (calling) VCPU. Currently this only makes + * sense for domain 0, vcpu 0. All other callers will be returned EINVAL. + * arg == pointer to xennmi_callback structure. + */ +#define XENNMI_register_callback 0 +struct xennmi_callback { + unsigned long handler_address; + unsigned long pad; +}; +DEFINE_GUEST_HANDLE_STRUCT(xennmi_callback); + +/* + * Deregister NMI callback for this (calling) VCPU. + * arg == NULL. + */ +#define XENNMI_unregister_callback 1 + +#endif /* __XEN_PUBLIC_NMI_H__ */ diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c index 1adf62b..07ce18c 100644 --- a/kernel/debug/debug_core.c +++ b/kernel/debug/debug_core.c @@ -27,6 +27,9 @@ * version 2. This program is licensed "as is" without any warranty of any * kind, whether express or implied. */ + +#define pr_fmt(fmt) "KGDB: " fmt + #include <linux/pid_namespace.h> #include <linux/clocksource.h> #include <linux/serial_core.h> @@ -196,8 +199,8 @@ int __weak kgdb_validate_break_address(unsigned long addr) return err; err = kgdb_arch_remove_breakpoint(&tmp); if (err) - printk(KERN_ERR "KGDB: Critical breakpoint error, kernel " - "memory destroyed at: %lx", addr); + pr_err("Critical breakpoint error, kernel memory destroyed at: %lx\n", + addr); return err; } @@ -256,8 +259,8 @@ int dbg_activate_sw_breakpoints(void) error = kgdb_arch_set_breakpoint(&kgdb_break[i]); if (error) { ret = error; - printk(KERN_INFO "KGDB: BP install failed: %lx", - kgdb_break[i].bpt_addr); + pr_info("BP install failed: %lx\n", + kgdb_break[i].bpt_addr); continue; } @@ -319,8 +322,8 @@ int dbg_deactivate_sw_breakpoints(void) continue; error = kgdb_arch_remove_breakpoint(&kgdb_break[i]); if (error) { - printk(KERN_INFO "KGDB: BP remove failed: %lx\n", - kgdb_break[i].bpt_addr); + pr_info("BP remove failed: %lx\n", + kgdb_break[i].bpt_addr); ret = error; } @@ -367,7 +370,7 @@ int dbg_remove_all_break(void) goto setundefined; error = kgdb_arch_remove_breakpoint(&kgdb_break[i]); if (error) - printk(KERN_ERR "KGDB: breakpoint remove failed: %lx\n", + pr_err("breakpoint remove failed: %lx\n", kgdb_break[i].bpt_addr); setundefined: kgdb_break[i].state = BP_UNDEFINED; @@ -400,9 +403,9 @@ static int kgdb_io_ready(int print_wait) if (print_wait) { #ifdef CONFIG_KGDB_KDB if (!dbg_kdb_mode) - printk(KERN_CRIT "KGDB: waiting... or $3#33 for KDB\n"); + pr_crit("waiting... or $3#33 for KDB\n"); #else - printk(KERN_CRIT "KGDB: Waiting for remote debugger\n"); + pr_crit("Waiting for remote debugger\n"); #endif } return 1; @@ -430,8 +433,7 @@ static int kgdb_reenter_check(struct kgdb_state *ks) exception_level = 0; kgdb_skipexception(ks->ex_vector, ks->linux_regs); dbg_activate_sw_breakpoints(); - printk(KERN_CRIT "KGDB: re-enter error: breakpoint removed %lx\n", - addr); + pr_crit("re-enter error: breakpoint removed %lx\n", addr); WARN_ON_ONCE(1); return 1; @@ -444,7 +446,7 @@ static int kgdb_reenter_check(struct kgdb_state *ks) panic("Recursive entry to debugger"); } - printk(KERN_CRIT "KGDB: re-enter exception: ALL breakpoints killed\n"); + pr_crit("re-enter exception: ALL breakpoints killed\n"); #ifdef CONFIG_KGDB_KDB /* Allow kdb to debug itself one level */ return 0; @@ -471,6 +473,7 @@ static int kgdb_cpu_enter(struct kgdb_state *ks, struct pt_regs *regs, int cpu; int trace_on = 0; int online_cpus = num_online_cpus(); + u64 time_left; kgdb_info[ks->cpu].enter_kgdb++; kgdb_info[ks->cpu].exception_state |= exception_state; @@ -595,9 +598,13 @@ return_normal: /* * Wait for the other CPUs to be notified and be waiting for us: */ - while (kgdb_do_roundup && (atomic_read(&masters_in_kgdb) + - atomic_read(&slaves_in_kgdb)) != online_cpus) + time_left = loops_per_jiffy * HZ; + while (kgdb_do_roundup && --time_left && + (atomic_read(&masters_in_kgdb) + atomic_read(&slaves_in_kgdb)) != + online_cpus) cpu_relax(); + if (!time_left) + pr_crit("KGDB: Timed out waiting for secondary CPUs.\n"); /* * At this point the primary processor is completely @@ -795,15 +802,15 @@ static struct console kgdbcons = { static void sysrq_handle_dbg(int key) { if (!dbg_io_ops) { - printk(KERN_CRIT "ERROR: No KGDB I/O module available\n"); + pr_crit("ERROR: No KGDB I/O module available\n"); return; } if (!kgdb_connected) { #ifdef CONFIG_KGDB_KDB if (!dbg_kdb_mode) - printk(KERN_CRIT "KGDB or $3#33 for KDB\n"); + pr_crit("KGDB or $3#33 for KDB\n"); #else - printk(KERN_CRIT "Entering KGDB\n"); + pr_crit("Entering KGDB\n"); #endif } @@ -945,7 +952,7 @@ static void kgdb_initial_breakpoint(void) { kgdb_break_asap = 0; - printk(KERN_CRIT "kgdb: Waiting for connection from remote gdb...\n"); + pr_crit("Waiting for connection from remote gdb...\n"); kgdb_breakpoint(); } @@ -964,8 +971,7 @@ int kgdb_register_io_module(struct kgdb_io *new_dbg_io_ops) if (dbg_io_ops) { spin_unlock(&kgdb_registration_lock); - printk(KERN_ERR "kgdb: Another I/O driver is already " - "registered with KGDB.\n"); + pr_err("Another I/O driver is already registered with KGDB\n"); return -EBUSY; } @@ -981,8 +987,7 @@ int kgdb_register_io_module(struct kgdb_io *new_dbg_io_ops) spin_unlock(&kgdb_registration_lock); - printk(KERN_INFO "kgdb: Registered I/O driver %s.\n", - new_dbg_io_ops->name); + pr_info("Registered I/O driver %s\n", new_dbg_io_ops->name); /* Arm KGDB now. */ kgdb_register_callbacks(); @@ -1017,8 +1022,7 @@ void kgdb_unregister_io_module(struct kgdb_io *old_dbg_io_ops) spin_unlock(&kgdb_registration_lock); - printk(KERN_INFO - "kgdb: Unregistered I/O driver %s, debugger disabled.\n", + pr_info("Unregistered I/O driver %s, debugger disabled\n", old_dbg_io_ops->name); } EXPORT_SYMBOL_GPL(kgdb_unregister_io_module); diff --git a/kernel/debug/kdb/kdb_bp.c b/kernel/debug/kdb/kdb_bp.c index b20d544..e1dbf4a 100644 --- a/kernel/debug/kdb/kdb_bp.c +++ b/kernel/debug/kdb/kdb_bp.c @@ -531,22 +531,29 @@ void __init kdb_initbptab(void) for (i = 0, bp = kdb_breakpoints; i < KDB_MAXBPT; i++, bp++) bp->bp_free = 1; - kdb_register_repeat("bp", kdb_bp, "[<vaddr>]", - "Set/Display breakpoints", 0, KDB_REPEAT_NO_ARGS); - kdb_register_repeat("bl", kdb_bp, "[<vaddr>]", - "Display breakpoints", 0, KDB_REPEAT_NO_ARGS); + kdb_register_flags("bp", kdb_bp, "[<vaddr>]", + "Set/Display breakpoints", 0, + KDB_ENABLE_FLOW_CTRL | KDB_REPEAT_NO_ARGS); + kdb_register_flags("bl", kdb_bp, "[<vaddr>]", + "Display breakpoints", 0, + KDB_ENABLE_FLOW_CTRL | KDB_REPEAT_NO_ARGS); if (arch_kgdb_ops.flags & KGDB_HW_BREAKPOINT) - kdb_register_repeat("bph", kdb_bp, "[<vaddr>]", - "[datar [length]|dataw [length]] Set hw brk", 0, KDB_REPEAT_NO_ARGS); - kdb_register_repeat("bc", kdb_bc, "<bpnum>", - "Clear Breakpoint", 0, KDB_REPEAT_NONE); - kdb_register_repeat("be", kdb_bc, "<bpnum>", - "Enable Breakpoint", 0, KDB_REPEAT_NONE); - kdb_register_repeat("bd", kdb_bc, "<bpnum>", - "Disable Breakpoint", 0, KDB_REPEAT_NONE); - - kdb_register_repeat("ss", kdb_ss, "", - "Single Step", 1, KDB_REPEAT_NO_ARGS); + kdb_register_flags("bph", kdb_bp, "[<vaddr>]", + "[datar [length]|dataw [length]] Set hw brk", 0, + KDB_ENABLE_FLOW_CTRL | KDB_REPEAT_NO_ARGS); + kdb_register_flags("bc", kdb_bc, "<bpnum>", + "Clear Breakpoint", 0, + KDB_ENABLE_FLOW_CTRL); + kdb_register_flags("be", kdb_bc, "<bpnum>", + "Enable Breakpoint", 0, + KDB_ENABLE_FLOW_CTRL); + kdb_register_flags("bd", kdb_bc, "<bpnum>", + "Disable Breakpoint", 0, + KDB_ENABLE_FLOW_CTRL); + + kdb_register_flags("ss", kdb_ss, "", + "Single Step", 1, + KDB_ENABLE_FLOW_CTRL | KDB_REPEAT_NO_ARGS); /* * Architecture dependent initialization. */ diff --git a/kernel/debug/kdb/kdb_debugger.c b/kernel/debug/kdb/kdb_debugger.c index 8859ca3..15e1a7a 100644 --- a/kernel/debug/kdb/kdb_debugger.c +++ b/kernel/debug/kdb/kdb_debugger.c @@ -129,6 +129,10 @@ int kdb_stub(struct kgdb_state *ks) ks->pass_exception = 1; KDB_FLAG_SET(CATASTROPHIC); } + /* set CATASTROPHIC if the system contains unresponsive processors */ + for_each_online_cpu(i) + if (!kgdb_info[i].enter_kgdb) + KDB_FLAG_SET(CATASTROPHIC); if (KDB_STATE(SSBPT) && reason == KDB_REASON_SSTEP) { KDB_STATE_CLEAR(SSBPT); KDB_STATE_CLEAR(DOING_SS); diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c index 379650b..f191bdd 100644 --- a/kernel/debug/kdb/kdb_main.c +++ b/kernel/debug/kdb/kdb_main.c @@ -12,6 +12,7 @@ */ #include <linux/ctype.h> +#include <linux/types.h> #include <linux/string.h> #include <linux/kernel.h> #include <linux/kmsg_dump.h> @@ -23,6 +24,7 @@ #include <linux/vmalloc.h> #include <linux/atomic.h> #include <linux/module.h> +#include <linux/moduleparam.h> #include <linux/mm.h> #include <linux/init.h> #include <linux/kallsyms.h> @@ -42,6 +44,12 @@ #include <linux/slab.h> #include "kdb_private.h" +#undef MODULE_PARAM_PREFIX +#define MODULE_PARAM_PREFIX "kdb." + +static int kdb_cmd_enabled = CONFIG_KDB_DEFAULT_ENABLE; +module_param_named(cmd_enable, kdb_cmd_enabled, int, 0600); + #define GREP_LEN 256 char kdb_grep_string[GREP_LEN]; int kdb_grepping_flag; @@ -121,6 +129,7 @@ static kdbmsg_t kdbmsgs[] = { KDBMSG(BADLENGTH, "Invalid length field"), KDBMSG(NOBP, "No Breakpoint exists"), KDBMSG(BADADDR, "Invalid address"), + KDBMSG(NOPERM, "Permission denied"), }; #undef KDBMSG @@ -188,6 +197,26 @@ struct task_struct *kdb_curr_task(int cpu) } /* + * Check whether the flags of the current command and the permissions + * of the kdb console has allow a command to be run. + */ +static inline bool kdb_check_flags(kdb_cmdflags_t flags, int permissions, + bool no_args) +{ + /* permissions comes from userspace so needs massaging slightly */ + permissions &= KDB_ENABLE_MASK; + permissions |= KDB_ENABLE_ALWAYS_SAFE; + + /* some commands change group when launched with no arguments */ + if (no_args) + permissions |= permissions << KDB_ENABLE_NO_ARGS_SHIFT; + + flags |= KDB_ENABLE_ALL; + + return permissions & flags; +} + +/* * kdbgetenv - This function will return the character string value of * an environment variable. * Parameters: @@ -476,6 +505,15 @@ int kdbgetaddrarg(int argc, const char **argv, int *nextarg, kdb_symtab_t symtab; /* + * If the enable flags prohibit both arbitrary memory access + * and flow control then there are no reasonable grounds to + * provide symbol lookup. + */ + if (!kdb_check_flags(KDB_ENABLE_MEM_READ | KDB_ENABLE_FLOW_CTRL, + kdb_cmd_enabled, false)) + return KDB_NOPERM; + + /* * Process arguments which follow the following syntax: * * symbol | numeric-address [+/- numeric-offset] @@ -641,8 +679,13 @@ static int kdb_defcmd2(const char *cmdstr, const char *argv0) if (!s->count) s->usable = 0; if (s->usable) - kdb_register(s->name, kdb_exec_defcmd, - s->usage, s->help, 0); + /* macros are always safe because when executed each + * internal command re-enters kdb_parse() and is + * safety checked individually. + */ + kdb_register_flags(s->name, kdb_exec_defcmd, s->usage, + s->help, 0, + KDB_ENABLE_ALWAYS_SAFE); return 0; } if (!s->usable) @@ -1003,25 +1046,22 @@ int kdb_parse(const char *cmdstr) if (i < kdb_max_commands) { int result; + + if (!kdb_check_flags(tp->cmd_flags, kdb_cmd_enabled, argc <= 1)) + return KDB_NOPERM; + KDB_STATE_SET(CMD); result = (*tp->cmd_func)(argc-1, (const char **)argv); if (result && ignore_errors && result > KDB_CMD_GO) result = 0; KDB_STATE_CLEAR(CMD); - switch (tp->cmd_repeat) { - case KDB_REPEAT_NONE: - argc = 0; - if (argv[0]) - *(argv[0]) = '\0'; - break; - case KDB_REPEAT_NO_ARGS: - argc = 1; - if (argv[1]) - *(argv[1]) = '\0'; - break; - case KDB_REPEAT_WITH_ARGS: - break; - } + + if (tp->cmd_flags & KDB_REPEAT_WITH_ARGS) + return result; + + argc = tp->cmd_flags & KDB_REPEAT_NO_ARGS ? 1 : 0; + if (argv[argc]) + *(argv[argc]) = '\0'; return result; } @@ -1921,10 +1961,14 @@ static int kdb_rm(int argc, const char **argv) */ static int kdb_sr(int argc, const char **argv) { + bool check_mask = + !kdb_check_flags(KDB_ENABLE_ALL, kdb_cmd_enabled, false); + if (argc != 1) return KDB_ARGCOUNT; + kdb_trap_printk++; - __handle_sysrq(*argv[1], false); + __handle_sysrq(*argv[1], check_mask); kdb_trap_printk--; return 0; @@ -2157,6 +2201,8 @@ static void kdb_cpu_status(void) for (start_cpu = -1, i = 0; i < NR_CPUS; i++) { if (!cpu_online(i)) { state = 'F'; /* cpu is offline */ + } else if (!kgdb_info[i].enter_kgdb) { + state = 'D'; /* cpu is online but unresponsive */ } else { state = ' '; /* cpu is responding to kdb */ if (kdb_task_state_char(KDB_TSK(i)) == 'I') @@ -2210,7 +2256,7 @@ static int kdb_cpu(int argc, const char **argv) /* * Validate cpunum */ - if ((cpunum > NR_CPUS) || !cpu_online(cpunum)) + if ((cpunum > NR_CPUS) || !kgdb_info[cpunum].enter_kgdb) return KDB_BADCPUNUM; dbg_switch_cpu = cpunum; @@ -2375,6 +2421,8 @@ static int kdb_help(int argc, const char **argv) return 0; if (!kt->cmd_name) continue; + if (!kdb_check_flags(kt->cmd_flags, kdb_cmd_enabled, true)) + continue; if (strlen(kt->cmd_usage) > 20) space = "\n "; kdb_printf("%-15.15s %-20s%s%s\n", kt->cmd_name, @@ -2629,7 +2677,7 @@ static int kdb_grep_help(int argc, const char **argv) } /* - * kdb_register_repeat - This function is used to register a kernel + * kdb_register_flags - This function is used to register a kernel * debugger command. * Inputs: * cmd Command name @@ -2641,12 +2689,12 @@ static int kdb_grep_help(int argc, const char **argv) * zero for success, one if a duplicate command. */ #define kdb_command_extend 50 /* arbitrary */ -int kdb_register_repeat(char *cmd, - kdb_func_t func, - char *usage, - char *help, - short minlen, - kdb_repeat_t repeat) +int kdb_register_flags(char *cmd, + kdb_func_t func, + char *usage, + char *help, + short minlen, + kdb_cmdflags_t flags) { int i; kdbtab_t *kp; @@ -2694,19 +2742,18 @@ int kdb_register_repeat(char *cmd, kp->cmd_func = func; kp->cmd_usage = usage; kp->cmd_help = help; - kp->cmd_flags = 0; kp->cmd_minlen = minlen; - kp->cmd_repeat = repeat; + kp->cmd_flags = flags; return 0; } -EXPORT_SYMBOL_GPL(kdb_register_repeat); +EXPORT_SYMBOL_GPL(kdb_register_flags); /* * kdb_register - Compatibility register function for commands that do * not need to specify a repeat state. Equivalent to - * kdb_register_repeat with KDB_REPEAT_NONE. + * kdb_register_flags with flags set to 0. * Inputs: * cmd Command name * func Function to execute the command @@ -2721,8 +2768,7 @@ int kdb_register(char *cmd, char *help, short minlen) { - return kdb_register_repeat(cmd, func, usage, help, minlen, - KDB_REPEAT_NONE); + return kdb_register_flags(cmd, func, usage, help, minlen, 0); } EXPORT_SYMBOL_GPL(kdb_register); @@ -2764,80 +2810,109 @@ static void __init kdb_inittab(void) for_each_kdbcmd(kp, i) kp->cmd_name = NULL; - kdb_register_repeat("md", kdb_md, "<vaddr>", + kdb_register_flags("md", kdb_md, "<vaddr>", "Display Memory Contents, also mdWcN, e.g. md8c1", 1, - KDB_REPEAT_NO_ARGS); - kdb_register_repeat("mdr", kdb_md, "<vaddr> <bytes>", - "Display Raw Memory", 0, KDB_REPEAT_NO_ARGS); - kdb_register_repeat("mdp", kdb_md, "<paddr> <bytes>", - "Display Physical Memory", 0, KDB_REPEAT_NO_ARGS); - kdb_register_repeat("mds", kdb_md, "<vaddr>", - "Display Memory Symbolically", 0, KDB_REPEAT_NO_ARGS); - kdb_register_repeat("mm", kdb_mm, "<vaddr> <contents>", - "Modify Memory Contents", 0, KDB_REPEAT_NO_ARGS); - kdb_register_repeat("go", kdb_go, "[<vaddr>]", - "Continue Execution", 1, KDB_REPEAT_NONE); - kdb_register_repeat("rd", kdb_rd, "", - "Display Registers", 0, KDB_REPEAT_NONE); - kdb_register_repeat("rm", kdb_rm, "<reg> <contents>", - "Modify Registers", 0, KDB_REPEAT_NONE); - kdb_register_repeat("ef", kdb_ef, "<vaddr>", - "Display exception frame", 0, KDB_REPEAT_NONE); - kdb_register_repeat("bt", kdb_bt, "[<vaddr>]", - "Stack traceback", 1, KDB_REPEAT_NONE); - kdb_register_repeat("btp", kdb_bt, "<pid>", - "Display stack for process <pid>", 0, KDB_REPEAT_NONE); - kdb_register_repeat("bta", kdb_bt, "[D|R|S|T|C|Z|E|U|I|M|A]", - "Backtrace all processes matching state flag", 0, KDB_REPEAT_NONE); - kdb_register_repeat("btc", kdb_bt, "", - "Backtrace current process on each cpu", 0, KDB_REPEAT_NONE); - kdb_register_repeat("btt", kdb_bt, "<vaddr>", + KDB_ENABLE_MEM_READ | KDB_REPEAT_NO_ARGS); + kdb_register_flags("mdr", kdb_md, "<vaddr> <bytes>", + "Display Raw Memory", 0, + KDB_ENABLE_MEM_READ | KDB_REPEAT_NO_ARGS); + kdb_register_flags("mdp", kdb_md, "<paddr> <bytes>", + "Display Physical Memory", 0, + KDB_ENABLE_MEM_READ | KDB_REPEAT_NO_ARGS); + kdb_register_flags("mds", kdb_md, "<vaddr>", + "Display Memory Symbolically", 0, + KDB_ENABLE_MEM_READ | KDB_REPEAT_NO_ARGS); + kdb_register_flags("mm", kdb_mm, "<vaddr> <contents>", + "Modify Memory Contents", 0, + KDB_ENABLE_MEM_WRITE | KDB_REPEAT_NO_ARGS); + kdb_register_flags("go", kdb_go, "[<vaddr>]", + "Continue Execution", 1, + KDB_ENABLE_REG_WRITE | KDB_ENABLE_ALWAYS_SAFE_NO_ARGS); + kdb_register_flags("rd", kdb_rd, "", + "Display Registers", 0, + KDB_ENABLE_REG_READ); + kdb_register_flags("rm", kdb_rm, "<reg> <contents>", + "Modify Registers", 0, + KDB_ENABLE_REG_WRITE); + kdb_register_flags("ef", kdb_ef, "<vaddr>", + "Display exception frame", 0, + KDB_ENABLE_MEM_READ); + kdb_register_flags("bt", kdb_bt, "[<vaddr>]", + "Stack traceback", 1, + KDB_ENABLE_MEM_READ | KDB_ENABLE_INSPECT_NO_ARGS); + kdb_register_flags("btp", kdb_bt, "<pid>", + "Display stack for process <pid>", 0, + KDB_ENABLE_INSPECT); + kdb_register_flags("bta", kdb_bt, "[D|R|S|T|C|Z|E|U|I|M|A]", + "Backtrace all processes matching state flag", 0, + KDB_ENABLE_INSPECT); + kdb_register_flags("btc", kdb_bt, "", + "Backtrace current process on each cpu", 0, + KDB_ENABLE_INSPECT); + kdb_register_flags("btt", kdb_bt, "<vaddr>", "Backtrace process given its struct task address", 0, - KDB_REPEAT_NONE); - kdb_register_repeat("env", kdb_env, "", - "Show environment variables", 0, KDB_REPEAT_NONE); - kdb_register_repeat("set", kdb_set, "", - "Set environment variables", 0, KDB_REPEAT_NONE); - kdb_register_repeat("help", kdb_help, "", - "Display Help Message", 1, KDB_REPEAT_NONE); - kdb_register_repeat("?", kdb_help, "", - "Display Help Message", 0, KDB_REPEAT_NONE); - kdb_register_repeat("cpu", kdb_cpu, "<cpunum>", - "Switch to new cpu", 0, KDB_REPEAT_NONE); - kdb_register_repeat("kgdb", kdb_kgdb, "", - "Enter kgdb mode", 0, KDB_REPEAT_NONE); - kdb_register_repeat("ps", kdb_ps, "[<flags>|A]", - "Display active task list", 0, KDB_REPEAT_NONE); - kdb_register_repeat("pid", kdb_pid, "<pidnum>", - "Switch to another task", 0, KDB_REPEAT_NONE); - kdb_register_repeat("reboot", kdb_reboot, "", - "Reboot the machine immediately", 0, KDB_REPEAT_NONE); + KDB_ENABLE_MEM_READ | KDB_ENABLE_INSPECT_NO_ARGS); + kdb_register_flags("env", kdb_env, "", + "Show environment variables", 0, + KDB_ENABLE_ALWAYS_SAFE); + kdb_register_flags("set", kdb_set, "", + "Set environment variables", 0, + KDB_ENABLE_ALWAYS_SAFE); + kdb_register_flags("help", kdb_help, "", + "Display Help Message", 1, + KDB_ENABLE_ALWAYS_SAFE); + kdb_register_flags("?", kdb_help, "", + "Display Help Message", 0, + KDB_ENABLE_ALWAYS_SAFE); + kdb_register_flags("cpu", kdb_cpu, "<cpunum>", + "Switch to new cpu", 0, + KDB_ENABLE_ALWAYS_SAFE_NO_ARGS); + kdb_register_flags("kgdb", kdb_kgdb, "", + "Enter kgdb mode", 0, 0); + kdb_register_flags("ps", kdb_ps, "[<flags>|A]", + "Display active task list", 0, + KDB_ENABLE_INSPECT); + kdb_register_flags("pid", kdb_pid, "<pidnum>", + "Switch to another task", 0, + KDB_ENABLE_INSPECT); + kdb_register_flags("reboot", kdb_reboot, "", + "Reboot the machine immediately", 0, + KDB_ENABLE_REBOOT); #if defined(CONFIG_MODULES) - kdb_register_repeat("lsmod", kdb_lsmod, "", - "List loaded kernel modules", 0, KDB_REPEAT_NONE); + kdb_register_flags("lsmod", kdb_lsmod, "", + "List loaded kernel modules", 0, + KDB_ENABLE_INSPECT); #endif #if defined(CONFIG_MAGIC_SYSRQ) - kdb_register_repeat("sr", kdb_sr, "<key>", - "Magic SysRq key", 0, KDB_REPEAT_NONE); + kdb_register_flags("sr", kdb_sr, "<key>", + "Magic SysRq key", 0, + KDB_ENABLE_ALWAYS_SAFE); #endif #if defined(CONFIG_PRINTK) - kdb_register_repeat("dmesg", kdb_dmesg, "[lines]", - "Display syslog buffer", 0, KDB_REPEAT_NONE); + kdb_register_flags("dmesg", kdb_dmesg, "[lines]", + "Display syslog buffer", 0, + KDB_ENABLE_ALWAYS_SAFE); #endif if (arch_kgdb_ops.enable_nmi) { - kdb_register_repeat("disable_nmi", kdb_disable_nmi, "", - "Disable NMI entry to KDB", 0, KDB_REPEAT_NONE); - } - kdb_register_repeat("defcmd", kdb_defcmd, "name \"usage\" \"help\"", - "Define a set of commands, down to endefcmd", 0, KDB_REPEAT_NONE); - kdb_register_repeat("kill", kdb_kill, "<-signal> <pid>", - "Send a signal to a process", 0, KDB_REPEAT_NONE); - kdb_register_repeat("summary", kdb_summary, "", - "Summarize the system", 4, KDB_REPEAT_NONE); - kdb_register_repeat("per_cpu", kdb_per_cpu, "<sym> [<bytes>] [<cpu>]", - "Display per_cpu variables", 3, KDB_REPEAT_NONE); - kdb_register_repeat("grephelp", kdb_grep_help, "", - "Display help on | grep", 0, KDB_REPEAT_NONE); + kdb_register_flags("disable_nmi", kdb_disable_nmi, "", + "Disable NMI entry to KDB", 0, + KDB_ENABLE_ALWAYS_SAFE); + } + kdb_register_flags("defcmd", kdb_defcmd, "name \"usage\" \"help\"", + "Define a set of commands, down to endefcmd", 0, + KDB_ENABLE_ALWAYS_SAFE); + kdb_register_flags("kill", kdb_kill, "<-signal> <pid>", + "Send a signal to a process", 0, + KDB_ENABLE_SIGNAL); + kdb_register_flags("summary", kdb_summary, "", + "Summarize the system", 4, + KDB_ENABLE_ALWAYS_SAFE); + kdb_register_flags("per_cpu", kdb_per_cpu, "<sym> [<bytes>] [<cpu>]", + "Display per_cpu variables", 3, + KDB_ENABLE_MEM_READ); + kdb_register_flags("grephelp", kdb_grep_help, "", + "Display help on | grep", 0, + KDB_ENABLE_ALWAYS_SAFE); } /* Execute any commands defined in kdb_cmds. */ diff --git a/kernel/debug/kdb/kdb_private.h b/kernel/debug/kdb/kdb_private.h index 7afd3c8..eaacd16 100644 --- a/kernel/debug/kdb/kdb_private.h +++ b/kernel/debug/kdb/kdb_private.h @@ -172,10 +172,9 @@ typedef struct _kdbtab { kdb_func_t cmd_func; /* Function to execute command */ char *cmd_usage; /* Usage String for this command */ char *cmd_help; /* Help message for this command */ - short cmd_flags; /* Parsing flags */ short cmd_minlen; /* Minimum legal # command * chars required */ - kdb_repeat_t cmd_repeat; /* Does command auto repeat on enter? */ + kdb_cmdflags_t cmd_flags; /* Command behaviour flags */ } kdbtab_t; extern int kdb_bt(int, const char **); /* KDB display back trace */ diff --git a/kernel/events/core.c b/kernel/events/core.c index 4c1ee7f..882f835 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -4461,18 +4461,14 @@ perf_output_sample_regs(struct perf_output_handle *handle, } static void perf_sample_regs_user(struct perf_regs *regs_user, - struct pt_regs *regs) + struct pt_regs *regs, + struct pt_regs *regs_user_copy) { - if (!user_mode(regs)) { - if (current->mm) - regs = task_pt_regs(current); - else - regs = NULL; - } - - if (regs) { - regs_user->abi = perf_reg_abi(current); + if (user_mode(regs)) { + regs_user->abi = perf_reg_abi(current); regs_user->regs = regs; + } else if (current->mm) { + perf_get_regs_user(regs_user, regs, regs_user_copy); } else { regs_user->abi = PERF_SAMPLE_REGS_ABI_NONE; regs_user->regs = NULL; @@ -4951,7 +4947,8 @@ void perf_prepare_sample(struct perf_event_header *header, } if (sample_type & (PERF_SAMPLE_REGS_USER | PERF_SAMPLE_STACK_USER)) - perf_sample_regs_user(&data->regs_user, regs); + perf_sample_regs_user(&data->regs_user, regs, + &data->regs_user_copy); if (sample_type & PERF_SAMPLE_REGS_USER) { /* regs dump ABI info */ diff --git a/kernel/exit.c b/kernel/exit.c index 1ea4369..6806c55 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -1287,9 +1287,15 @@ static int wait_task_continued(struct wait_opts *wo, struct task_struct *p) static int wait_consider_task(struct wait_opts *wo, int ptrace, struct task_struct *p) { + /* + * We can race with wait_task_zombie() from another thread. + * Ensure that EXIT_ZOMBIE -> EXIT_DEAD/EXIT_TRACE transition + * can't confuse the checks below. + */ + int exit_state = ACCESS_ONCE(p->exit_state); int ret; - if (unlikely(p->exit_state == EXIT_DEAD)) + if (unlikely(exit_state == EXIT_DEAD)) return 0; ret = eligible_child(wo, p); @@ -1310,7 +1316,7 @@ static int wait_consider_task(struct wait_opts *wo, int ptrace, return 0; } - if (unlikely(p->exit_state == EXIT_TRACE)) { + if (unlikely(exit_state == EXIT_TRACE)) { /* * ptrace == 0 means we are the natural parent. In this case * we should clear notask_error, debugger will notify us. @@ -1337,7 +1343,7 @@ static int wait_consider_task(struct wait_opts *wo, int ptrace, } /* slay zombie? */ - if (p->exit_state == EXIT_ZOMBIE) { + if (exit_state == EXIT_ZOMBIE) { /* we don't reap group leaders with subthreads */ if (!delay_group_leader(p)) { /* diff --git a/kernel/locking/mutex-debug.c b/kernel/locking/mutex-debug.c index 5cf6731..3ef3736 100644 --- a/kernel/locking/mutex-debug.c +++ b/kernel/locking/mutex-debug.c @@ -80,13 +80,13 @@ void debug_mutex_unlock(struct mutex *lock) DEBUG_LOCKS_WARN_ON(lock->owner != current); DEBUG_LOCKS_WARN_ON(!lock->wait_list.prev && !lock->wait_list.next); - mutex_clear_owner(lock); } /* * __mutex_slowpath_needs_to_unlock() is explicitly 0 for debug * mutexes so that we can do it here after we've verified state. */ + mutex_clear_owner(lock); atomic_set(&lock->count, 1); } diff --git a/kernel/sched/core.c b/kernel/sched/core.c index b5797b7..c0accc0 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -7113,9 +7113,6 @@ void __init sched_init(void) #ifdef CONFIG_RT_GROUP_SCHED alloc_size += 2 * nr_cpu_ids * sizeof(void **); #endif -#ifdef CONFIG_CPUMASK_OFFSTACK - alloc_size += num_possible_cpus() * cpumask_size(); -#endif if (alloc_size) { ptr = (unsigned long)kzalloc(alloc_size, GFP_NOWAIT); @@ -7135,13 +7132,13 @@ void __init sched_init(void) ptr += nr_cpu_ids * sizeof(void **); #endif /* CONFIG_RT_GROUP_SCHED */ + } #ifdef CONFIG_CPUMASK_OFFSTACK - for_each_possible_cpu(i) { - per_cpu(load_balance_mask, i) = (void *)ptr; - ptr += cpumask_size(); - } -#endif /* CONFIG_CPUMASK_OFFSTACK */ + for_each_possible_cpu(i) { + per_cpu(load_balance_mask, i) = (cpumask_var_t)kzalloc_node( + cpumask_size(), GFP_KERNEL, cpu_to_node(i)); } +#endif /* CONFIG_CPUMASK_OFFSTACK */ init_rt_bandwidth(&def_rt_bandwidth, global_rt_period(), global_rt_runtime()); diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index e5db8c6..b52092f 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -570,24 +570,7 @@ void init_dl_task_timer(struct sched_dl_entity *dl_se) static int dl_runtime_exceeded(struct rq *rq, struct sched_dl_entity *dl_se) { - int dmiss = dl_time_before(dl_se->deadline, rq_clock(rq)); - int rorun = dl_se->runtime <= 0; - - if (!rorun && !dmiss) - return 0; - - /* - * If we are beyond our current deadline and we are still - * executing, then we have already used some of the runtime of - * the next instance. Thus, if we do not account that, we are - * stealing bandwidth from the system at each deadline miss! - */ - if (dmiss) { - dl_se->runtime = rorun ? dl_se->runtime : 0; - dl_se->runtime -= rq_clock(rq) - dl_se->deadline; - } - - return 1; + return (dl_se->runtime <= 0); } extern bool sched_rt_bandwidth_account(struct rt_rq *rt_rq); @@ -826,10 +809,10 @@ enqueue_dl_entity(struct sched_dl_entity *dl_se, * parameters of the task might need updating. Otherwise, * we want a replenishment of its runtime. */ - if (!dl_se->dl_new && flags & ENQUEUE_REPLENISH) - replenish_dl_entity(dl_se, pi_se); - else + if (dl_se->dl_new || flags & ENQUEUE_WAKEUP) update_dl_entity(dl_se, pi_se); + else if (flags & ENQUEUE_REPLENISH) + replenish_dl_entity(dl_se, pi_se); __enqueue_dl_entity(dl_se); } diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index df2cdf7..40667cb 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -4005,6 +4005,10 @@ void __start_cfs_bandwidth(struct cfs_bandwidth *cfs_b, bool force) static void destroy_cfs_bandwidth(struct cfs_bandwidth *cfs_b) { + /* init_cfs_bandwidth() was not called */ + if (!cfs_b->throttled_cfs_rq.next) + return; + hrtimer_cancel(&cfs_b->period_timer); hrtimer_cancel(&cfs_b->slack_timer); } @@ -4424,7 +4428,7 @@ static long effective_load(struct task_group *tg, int cpu, long wl, long wg) * wl = S * s'_i; see (2) */ if (W > 0 && w < W) - wl = (w * tg->shares) / W; + wl = (w * (long)tg->shares) / W; else wl = tg->shares; diff --git a/kernel/trace/trace_kdb.c b/kernel/trace/trace_kdb.c index b0b1c44..3ccf5c2 100644 --- a/kernel/trace/trace_kdb.c +++ b/kernel/trace/trace_kdb.c @@ -132,8 +132,8 @@ static int kdb_ftdump(int argc, const char **argv) static __init int kdb_ftrace_register(void) { - kdb_register_repeat("ftdump", kdb_ftdump, "[skip_#lines] [cpu]", - "Dump ftrace log", 0, KDB_REPEAT_NONE); + kdb_register_flags("ftdump", kdb_ftdump, "[skip_#lines] [cpu]", + "Dump ftrace log", 0, KDB_ENABLE_ALWAYS_SAFE); return 0; } diff --git a/lib/Kconfig.kgdb b/lib/Kconfig.kgdb index 358eb81..c635a10 100644 --- a/lib/Kconfig.kgdb +++ b/lib/Kconfig.kgdb @@ -73,6 +73,31 @@ config KGDB_KDB help KDB frontend for kernel +config KDB_DEFAULT_ENABLE + hex "KDB: Select kdb command functions to be enabled by default" + depends on KGDB_KDB + default 0x1 + help + Specifiers which kdb commands are enabled by default. This may + be set to 1 or 0 to enable all commands or disable almost all + commands. + + Alternatively the following bitmask applies: + + 0x0002 - allow arbitrary reads from memory and symbol lookup + 0x0004 - allow arbitrary writes to memory + 0x0008 - allow current register state to be inspected + 0x0010 - allow current register state to be modified + 0x0020 - allow passive inspection (backtrace, process list, lsmod) + 0x0040 - allow flow control management (breakpoint, single step) + 0x0080 - enable signalling of processes + 0x0100 - allow machine to be rebooted + + The config option merely sets the default at boot time. Both + issuing 'echo X > /sys/module/kdb/parameters/cmd_enable' or + setting with kdb.cmd_enable=X kernel command line option will + override the default settings. + config KDB_KEYBOARD bool "KGDB_KDB: keyboard as input device" depends on VT && KGDB_KDB diff --git a/lib/assoc_array.c b/lib/assoc_array.c index 2404d03..03dd576 100644 --- a/lib/assoc_array.c +++ b/lib/assoc_array.c @@ -11,6 +11,7 @@ * 2 of the Licence, or (at your option) any later version. */ //#define DEBUG +#include <linux/rcupdate.h> #include <linux/slab.h> #include <linux/err.h> #include <linux/assoc_array_priv.h> diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug index 56badfc..957d3da 100644 --- a/mm/Kconfig.debug +++ b/mm/Kconfig.debug @@ -14,7 +14,6 @@ config DEBUG_PAGEALLOC depends on !KMEMCHECK select PAGE_EXTENSION select PAGE_POISONING if !ARCH_SUPPORTS_DEBUG_PAGEALLOC - select PAGE_GUARD if ARCH_SUPPORTS_DEBUG_PAGEALLOC ---help--- Unmap pages from the kernel linear mapping after free_pages(). This results in a large slowdown, but helps to find certain types @@ -27,13 +26,5 @@ config DEBUG_PAGEALLOC that would result in incorrect warnings of memory corruption after a resume because free pages are not saved to the suspend image. -config WANT_PAGE_DEBUG_FLAGS - bool - config PAGE_POISONING bool - select WANT_PAGE_DEBUG_FLAGS - -config PAGE_GUARD - bool - select WANT_PAGE_DEBUG_FLAGS diff --git a/mm/memcontrol.c b/mm/memcontrol.c index ef91e85..851924f 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -3043,18 +3043,6 @@ static int mem_cgroup_move_swap_account(swp_entry_t entry, if (swap_cgroup_cmpxchg(entry, old_id, new_id) == old_id) { mem_cgroup_swap_statistics(from, false); mem_cgroup_swap_statistics(to, true); - /* - * This function is only called from task migration context now. - * It postpones page_counter and refcount handling till the end - * of task migration(mem_cgroup_clear_mc()) for performance - * improvement. But we cannot postpone css_get(to) because if - * the process that has been moved to @to does swap-in, the - * refcount of @to might be decreased to 0. - * - * We are in attach() phase, so the cgroup is guaranteed to be - * alive, so we can just call css_get(). - */ - css_get(&to->css); return 0; } return -EINVAL; @@ -4679,6 +4667,7 @@ mem_cgroup_css_alloc(struct cgroup_subsys_state *parent_css) if (parent_css == NULL) { root_mem_cgroup = memcg; page_counter_init(&memcg->memory, NULL); + memcg->soft_limit = PAGE_COUNTER_MAX; page_counter_init(&memcg->memsw, NULL); page_counter_init(&memcg->kmem, NULL); } @@ -4724,6 +4713,7 @@ mem_cgroup_css_online(struct cgroup_subsys_state *css) if (parent->use_hierarchy) { page_counter_init(&memcg->memory, &parent->memory); + memcg->soft_limit = PAGE_COUNTER_MAX; page_counter_init(&memcg->memsw, &parent->memsw); page_counter_init(&memcg->kmem, &parent->kmem); @@ -4733,6 +4723,7 @@ mem_cgroup_css_online(struct cgroup_subsys_state *css) */ } else { page_counter_init(&memcg->memory, NULL); + memcg->soft_limit = PAGE_COUNTER_MAX; page_counter_init(&memcg->memsw, NULL); page_counter_init(&memcg->kmem, NULL); /* @@ -4807,7 +4798,7 @@ static void mem_cgroup_css_reset(struct cgroup_subsys_state *css) mem_cgroup_resize_limit(memcg, PAGE_COUNTER_MAX); mem_cgroup_resize_memsw_limit(memcg, PAGE_COUNTER_MAX); memcg_update_kmem_limit(memcg, PAGE_COUNTER_MAX); - memcg->soft_limit = 0; + memcg->soft_limit = PAGE_COUNTER_MAX; } #ifdef CONFIG_MMU diff --git a/mm/memory.c b/mm/memory.c index ca920d1..54f3a9b 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -235,6 +235,9 @@ void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long static void tlb_flush_mmu_tlbonly(struct mmu_gather *tlb) { + if (!tlb->end) + return; + tlb_flush(tlb); mmu_notifier_invalidate_range(tlb->mm, tlb->start, tlb->end); #ifdef CONFIG_HAVE_RCU_TABLE_FREE @@ -247,7 +250,7 @@ static void tlb_flush_mmu_free(struct mmu_gather *tlb) { struct mmu_gather_batch *batch; - for (batch = &tlb->local; batch; batch = batch->next) { + for (batch = &tlb->local; batch && batch->nr; batch = batch->next) { free_pages_and_swap_cache(batch->pages, batch->nr); batch->nr = 0; } @@ -256,9 +259,6 @@ static void tlb_flush_mmu_free(struct mmu_gather *tlb) void tlb_flush_mmu(struct mmu_gather *tlb) { - if (!tlb->end) - return; - tlb_flush_mmu_tlbonly(tlb); tlb_flush_mmu_free(tlb); } @@ -2137,17 +2137,24 @@ reuse: if (!dirty_page) return ret; - /* - * Yes, Virginia, this is actually required to prevent a race - * with clear_page_dirty_for_io() from clearing the page dirty - * bit after it clear all dirty ptes, but before a racing - * do_wp_page installs a dirty pte. - * - * do_shared_fault is protected similarly. - */ if (!page_mkwrite) { - wait_on_page_locked(dirty_page); - set_page_dirty_balance(dirty_page); + struct address_space *mapping; + int dirtied; + + lock_page(dirty_page); + dirtied = set_page_dirty(dirty_page); + VM_BUG_ON_PAGE(PageAnon(dirty_page), dirty_page); + mapping = dirty_page->mapping; + unlock_page(dirty_page); + + if (dirtied && mapping) { + /* + * Some device drivers do not set page.mapping + * but still dirty their pages + */ + balance_dirty_pages_ratelimited(mapping); + } + /* file_update_time outside page_lock */ if (vma->vm_file) file_update_time(vma->vm_file); @@ -2593,7 +2600,7 @@ static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned lo if (prev && prev->vm_end == address) return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM; - expand_downwards(vma, address - PAGE_SIZE); + return expand_downwards(vma, address - PAGE_SIZE); } if ((vma->vm_flags & VM_GROWSUP) && address + PAGE_SIZE == vma->vm_end) { struct vm_area_struct *next = vma->vm_next; @@ -2602,7 +2609,7 @@ static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned lo if (next && next->vm_start == address + PAGE_SIZE) return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM; - expand_upwards(vma, address + PAGE_SIZE); + return expand_upwards(vma, address + PAGE_SIZE); } return 0; } @@ -778,10 +778,12 @@ again: remove_next = 1 + (end > next->vm_end); if (exporter && exporter->anon_vma && !importer->anon_vma) { int error; + importer->anon_vma = exporter->anon_vma; error = anon_vma_clone(importer, exporter); - if (error) + if (error) { + importer->anon_vma = NULL; return error; - importer->anon_vma = exporter->anon_vma; + } } } @@ -2099,14 +2101,17 @@ static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, uns { struct mm_struct *mm = vma->vm_mm; struct rlimit *rlim = current->signal->rlim; - unsigned long new_start; + unsigned long new_start, actual_size; /* address space limit tests */ if (!may_expand_vm(mm, grow)) return -ENOMEM; /* Stack limit test */ - if (size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur)) + actual_size = size; + if (size && (vma->vm_flags & (VM_GROWSUP | VM_GROWSDOWN))) + actual_size -= PAGE_SIZE; + if (actual_size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur)) return -ENOMEM; /* mlock limit tests */ diff --git a/mm/page-writeback.c b/mm/page-writeback.c index d5d81f5..6f43352 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -1541,16 +1541,6 @@ pause: bdi_start_background_writeback(bdi); } -void set_page_dirty_balance(struct page *page) -{ - if (set_page_dirty(page)) { - struct address_space *mapping = page_mapping(page); - - if (mapping) - balance_dirty_pages_ratelimited(mapping); - } -} - static DEFINE_PER_CPU(int, bdp_ratelimits); /* @@ -2123,32 +2113,25 @@ EXPORT_SYMBOL(account_page_dirtied); * page dirty in that case, but not all the buffers. This is a "bottom-up" * dirtying, whereas __set_page_dirty_buffers() is a "top-down" dirtying. * - * Most callers have locked the page, which pins the address_space in memory. - * But zap_pte_range() does not lock the page, however in that case the - * mapping is pinned by the vma's ->vm_file reference. - * - * We take care to handle the case where the page was truncated from the - * mapping by re-checking page_mapping() inside tree_lock. + * The caller must ensure this doesn't race with truncation. Most will simply + * hold the page lock, but e.g. zap_pte_range() calls with the page mapped and + * the pte lock held, which also locks out truncation. */ int __set_page_dirty_nobuffers(struct page *page) { if (!TestSetPageDirty(page)) { struct address_space *mapping = page_mapping(page); - struct address_space *mapping2; unsigned long flags; if (!mapping) return 1; spin_lock_irqsave(&mapping->tree_lock, flags); - mapping2 = page_mapping(page); - if (mapping2) { /* Race with truncate? */ - BUG_ON(mapping2 != mapping); - WARN_ON_ONCE(!PagePrivate(page) && !PageUptodate(page)); - account_page_dirtied(page, mapping); - radix_tree_tag_set(&mapping->page_tree, - page_index(page), PAGECACHE_TAG_DIRTY); - } + BUG_ON(page_mapping(page) != mapping); + WARN_ON_ONCE(!PagePrivate(page) && !PageUptodate(page)); + account_page_dirtied(page, mapping); + radix_tree_tag_set(&mapping->page_tree, page_index(page), + PAGECACHE_TAG_DIRTY); spin_unlock_irqrestore(&mapping->tree_lock, flags); if (mapping->host) { /* !PageAnon && !swapper_space */ @@ -2305,12 +2288,10 @@ int clear_page_dirty_for_io(struct page *page) /* * We carefully synchronise fault handlers against * installing a dirty pte and marking the page dirty - * at this point. We do this by having them hold the - * page lock at some point after installing their - * pte, but before marking the page dirty. - * Pages are always locked coming in here, so we get - * the desired exclusion. See mm/memory.c:do_wp_page() - * for more comments. + * at this point. We do this by having them hold the + * page lock while dirtying the page, and pages are + * always locked coming in here, so we get the desired + * exclusion. */ if (TestClearPageDirty(page)) { dec_zone_page_state(page, NR_FILE_DIRTY); @@ -72,6 +72,8 @@ static inline struct anon_vma *anon_vma_alloc(void) anon_vma = kmem_cache_alloc(anon_vma_cachep, GFP_KERNEL); if (anon_vma) { atomic_set(&anon_vma->refcount, 1); + anon_vma->degree = 1; /* Reference for first vma */ + anon_vma->parent = anon_vma; /* * Initialise the anon_vma root to point to itself. If called * from fork, the root will be reset to the parents anon_vma. @@ -188,6 +190,8 @@ int anon_vma_prepare(struct vm_area_struct *vma) if (likely(!vma->anon_vma)) { vma->anon_vma = anon_vma; anon_vma_chain_link(vma, avc, anon_vma); + /* vma reference or self-parent link for new root */ + anon_vma->degree++; allocated = NULL; avc = NULL; } @@ -236,6 +240,14 @@ static inline void unlock_anon_vma_root(struct anon_vma *root) /* * Attach the anon_vmas from src to dst. * Returns 0 on success, -ENOMEM on failure. + * + * If dst->anon_vma is NULL this function tries to find and reuse existing + * anon_vma which has no vmas and only one child anon_vma. This prevents + * degradation of anon_vma hierarchy to endless linear chain in case of + * constantly forking task. On the other hand, an anon_vma with more than one + * child isn't reused even if there was no alive vma, thus rmap walker has a + * good chance of avoiding scanning the whole hierarchy when it searches where + * page is mapped. */ int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src) { @@ -256,7 +268,21 @@ int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src) anon_vma = pavc->anon_vma; root = lock_anon_vma_root(root, anon_vma); anon_vma_chain_link(dst, avc, anon_vma); + + /* + * Reuse existing anon_vma if its degree lower than two, + * that means it has no vma and only one anon_vma child. + * + * Do not chose parent anon_vma, otherwise first child + * will always reuse it. Root anon_vma is never reused: + * it has self-parent reference and at least one child. + */ + if (!dst->anon_vma && anon_vma != src->anon_vma && + anon_vma->degree < 2) + dst->anon_vma = anon_vma; } + if (dst->anon_vma) + dst->anon_vma->degree++; unlock_anon_vma_root(root); return 0; @@ -280,6 +306,9 @@ int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma) if (!pvma->anon_vma) return 0; + /* Drop inherited anon_vma, we'll reuse existing or allocate new. */ + vma->anon_vma = NULL; + /* * First, attach the new VMA to the parent VMA's anon_vmas, * so rmap can find non-COWed pages in child processes. @@ -288,6 +317,10 @@ int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma) if (error) return error; + /* An existing anon_vma has been reused, all done then. */ + if (vma->anon_vma) + return 0; + /* Then add our own anon_vma. */ anon_vma = anon_vma_alloc(); if (!anon_vma) @@ -301,6 +334,7 @@ int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma) * lock any of the anon_vmas in this anon_vma tree. */ anon_vma->root = pvma->anon_vma->root; + anon_vma->parent = pvma->anon_vma; /* * With refcounts, an anon_vma can stay around longer than the * process it belongs to. The root anon_vma needs to be pinned until @@ -311,6 +345,7 @@ int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma) vma->anon_vma = anon_vma; anon_vma_lock_write(anon_vma); anon_vma_chain_link(vma, avc, anon_vma); + anon_vma->parent->degree++; anon_vma_unlock_write(anon_vma); return 0; @@ -341,12 +376,16 @@ void unlink_anon_vmas(struct vm_area_struct *vma) * Leave empty anon_vmas on the list - we'll need * to free them outside the lock. */ - if (RB_EMPTY_ROOT(&anon_vma->rb_root)) + if (RB_EMPTY_ROOT(&anon_vma->rb_root)) { + anon_vma->parent->degree--; continue; + } list_del(&avc->same_vma); anon_vma_chain_free(avc); } + if (vma->anon_vma) + vma->anon_vma->degree--; unlock_anon_vma_root(root); /* @@ -357,6 +396,7 @@ void unlink_anon_vmas(struct vm_area_struct *vma) list_for_each_entry_safe(avc, next, &vma->anon_vma_chain, same_vma) { struct anon_vma *anon_vma = avc->anon_vma; + BUG_ON(anon_vma->degree); put_anon_vma(anon_vma); list_del(&avc->same_vma); diff --git a/mm/vmscan.c b/mm/vmscan.c index bd9a72b..ab2505c 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2921,18 +2921,20 @@ static bool prepare_kswapd_sleep(pg_data_t *pgdat, int order, long remaining, return false; /* - * There is a potential race between when kswapd checks its watermarks - * and a process gets throttled. There is also a potential race if - * processes get throttled, kswapd wakes, a large process exits therby - * balancing the zones that causes kswapd to miss a wakeup. If kswapd - * is going to sleep, no process should be sleeping on pfmemalloc_wait - * so wake them now if necessary. If necessary, processes will wake - * kswapd and get throttled again + * The throttled processes are normally woken up in balance_pgdat() as + * soon as pfmemalloc_watermark_ok() is true. But there is a potential + * race between when kswapd checks the watermarks and a process gets + * throttled. There is also a potential race if processes get + * throttled, kswapd wakes, a large process exits thereby balancing the + * zones, which causes kswapd to exit balance_pgdat() before reaching + * the wake up checks. If kswapd is going to sleep, no process should + * be sleeping on pfmemalloc_wait, so wake them now if necessary. If + * the wake up is premature, processes will wake kswapd and get + * throttled again. The difference from wake ups in balance_pgdat() is + * that here we are under prepare_to_wait(). */ - if (waitqueue_active(&pgdat->pfmemalloc_wait)) { - wake_up(&pgdat->pfmemalloc_wait); - return false; - } + if (waitqueue_active(&pgdat->pfmemalloc_wait)) + wake_up_all(&pgdat->pfmemalloc_wait); return pgdat_balanced(pgdat, order, classzone_idx); } diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c index ab6bb2a..b24e4bb 100644 --- a/net/batman-adv/multicast.c +++ b/net/batman-adv/multicast.c @@ -685,11 +685,13 @@ static void batadv_mcast_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv, if (orig_initialized) atomic_dec(&bat_priv->mcast.num_disabled); orig->capabilities |= BATADV_ORIG_CAPA_HAS_MCAST; - /* If mcast support is being switched off increase the disabled - * mcast node counter. + /* If mcast support is being switched off or if this is an initial + * OGM without mcast support then increase the disabled mcast + * node counter. */ } else if (!orig_mcast_enabled && - orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST) { + (orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST || + !orig_initialized)) { atomic_inc(&bat_priv->mcast.num_disabled); orig->capabilities &= ~BATADV_ORIG_CAPA_HAS_MCAST; } @@ -738,7 +740,8 @@ void batadv_mcast_purge_orig(struct batadv_orig_node *orig) { struct batadv_priv *bat_priv = orig->bat_priv; - if (!(orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST)) + if (!(orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST) && + orig->capa_initialized & BATADV_ORIG_CAPA_HAS_MCAST) atomic_dec(&bat_priv->mcast.num_disabled); batadv_mcast_want_unsnoop_update(bat_priv, orig, BATADV_NO_FLAGS); diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c index 8d04d17..fab47f1 100644 --- a/net/batman-adv/network-coding.c +++ b/net/batman-adv/network-coding.c @@ -133,7 +133,7 @@ int batadv_nc_mesh_init(struct batadv_priv *bat_priv) if (!bat_priv->nc.decoding_hash) goto err; - batadv_hash_set_lock_class(bat_priv->nc.coding_hash, + batadv_hash_set_lock_class(bat_priv->nc.decoding_hash, &batadv_nc_decoding_hash_lock_class_key); INIT_DELAYED_WORK(&bat_priv->nc.work, batadv_nc_worker); diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c index 6a48451..bea8198 100644 --- a/net/batman-adv/originator.c +++ b/net/batman-adv/originator.c @@ -570,9 +570,6 @@ static void batadv_orig_node_free_rcu(struct rcu_head *rcu) batadv_frag_purge_orig(orig_node, NULL); - batadv_tt_global_del_orig(orig_node->bat_priv, orig_node, -1, - "originator timed out"); - if (orig_node->bat_priv->bat_algo_ops->bat_orig_free) orig_node->bat_priv->bat_algo_ops->bat_orig_free(orig_node); @@ -678,6 +675,7 @@ struct batadv_orig_node *batadv_orig_node_new(struct batadv_priv *bat_priv, atomic_set(&orig_node->last_ttvn, 0); orig_node->tt_buff = NULL; orig_node->tt_buff_len = 0; + orig_node->last_seen = jiffies; reset_time = jiffies - 1 - msecs_to_jiffies(BATADV_RESET_PROTECTION_MS); orig_node->bcast_seqno_reset = reset_time; #ifdef CONFIG_BATMAN_ADV_MCAST @@ -977,6 +975,9 @@ static void _batadv_purge_orig(struct batadv_priv *bat_priv) if (batadv_purge_orig_node(bat_priv, orig_node)) { batadv_gw_node_delete(bat_priv, orig_node); hlist_del_rcu(&orig_node->hash_entry); + batadv_tt_global_del_orig(orig_node->bat_priv, + orig_node, -1, + "originator timed out"); batadv_orig_node_free_ref(orig_node); continue; } diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c index 35f76f2..6648f32 100644 --- a/net/batman-adv/routing.c +++ b/net/batman-adv/routing.c @@ -443,11 +443,13 @@ batadv_find_router(struct batadv_priv *bat_priv, router = batadv_orig_router_get(orig_node, recv_if); + if (!router) + return router; + /* only consider bonding for recv_if == BATADV_IF_DEFAULT (first hop) * and if activated. */ - if (recv_if == BATADV_IF_DEFAULT || !atomic_read(&bat_priv->bonding) || - !router) + if (!(recv_if == BATADV_IF_DEFAULT && atomic_read(&bat_priv->bonding))) return router; /* bonding: loop through the list of possible routers found diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c index 1f1de71..e2aa7be 100644 --- a/net/bridge/br_input.c +++ b/net/bridge/br_input.c @@ -154,7 +154,8 @@ int br_handle_frame_finish(struct sk_buff *skb) dst = NULL; if (is_broadcast_ether_addr(dest)) { - if (p->flags & BR_PROXYARP && + if (IS_ENABLED(CONFIG_INET) && + p->flags & BR_PROXYARP && skb->protocol == htons(ETH_P_ARP)) br_do_proxy_arp(skb, br, vid); diff --git a/net/ceph/auth_x.c b/net/ceph/auth_x.c index 1584581..ba6eb17 100644 --- a/net/ceph/auth_x.c +++ b/net/ceph/auth_x.c @@ -676,7 +676,7 @@ static int calcu_signature(struct ceph_x_authorizer *au, int ret; char tmp_enc[40]; __le32 tmp[5] = { - 16u, msg->hdr.crc, msg->footer.front_crc, + cpu_to_le32(16), msg->hdr.crc, msg->footer.front_crc, msg->footer.middle_crc, msg->footer.data_crc, }; ret = ceph_x_encrypt(&au->session_key, &tmp, sizeof(tmp), diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c index a83062c..f2148e2 100644 --- a/net/ceph/mon_client.c +++ b/net/ceph/mon_client.c @@ -717,7 +717,7 @@ static int get_poolop_reply_buf(const char *src, size_t src_len, if (src_len != sizeof(u32) + dst_len) return -EINVAL; - buf_len = le32_to_cpu(*(u32 *)src); + buf_len = le32_to_cpu(*(__le32 *)src); if (buf_len != dst_len) return -EINVAL; diff --git a/net/core/neighbour.c b/net/core/neighbour.c index 8e38f17..8d614c9 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -2043,6 +2043,12 @@ static int neightbl_set(struct sk_buff *skb, struct nlmsghdr *nlh) case NDTPA_BASE_REACHABLE_TIME: NEIGH_VAR_SET(p, BASE_REACHABLE_TIME, nla_get_msecs(tbp[i])); + /* update reachable_time as well, otherwise, the change will + * only be effective after the next time neigh_periodic_work + * decides to recompute it (can be multiple minutes) + */ + p->reachable_time = + neigh_rand_reach_time(NEIGH_VAR(p, BASE_REACHABLE_TIME)); break; case NDTPA_GC_STALETIME: NEIGH_VAR_SET(p, GC_STALETIME, @@ -2921,6 +2927,31 @@ static int neigh_proc_dointvec_unres_qlen(struct ctl_table *ctl, int write, return ret; } +static int neigh_proc_base_reachable_time(struct ctl_table *ctl, int write, + void __user *buffer, + size_t *lenp, loff_t *ppos) +{ + struct neigh_parms *p = ctl->extra2; + int ret; + + if (strcmp(ctl->procname, "base_reachable_time") == 0) + ret = neigh_proc_dointvec_jiffies(ctl, write, buffer, lenp, ppos); + else if (strcmp(ctl->procname, "base_reachable_time_ms") == 0) + ret = neigh_proc_dointvec_ms_jiffies(ctl, write, buffer, lenp, ppos); + else + ret = -1; + + if (write && ret == 0) { + /* update reachable_time as well, otherwise, the change will + * only be effective after the next time neigh_periodic_work + * decides to recompute it + */ + p->reachable_time = + neigh_rand_reach_time(NEIGH_VAR(p, BASE_REACHABLE_TIME)); + } + return ret; +} + #define NEIGH_PARMS_DATA_OFFSET(index) \ (&((struct neigh_parms *) 0)->data[index]) @@ -3047,6 +3078,19 @@ int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p, t->neigh_vars[NEIGH_VAR_RETRANS_TIME_MS].proc_handler = handler; /* ReachableTime (in milliseconds) */ t->neigh_vars[NEIGH_VAR_BASE_REACHABLE_TIME_MS].proc_handler = handler; + } else { + /* Those handlers will update p->reachable_time after + * base_reachable_time(_ms) is set to ensure the new timer starts being + * applied after the next neighbour update instead of waiting for + * neigh_periodic_work to update its value (can be multiple minutes) + * So any handler that replaces them should do this as well + */ + /* ReachableTime */ + t->neigh_vars[NEIGH_VAR_BASE_REACHABLE_TIME].proc_handler = + neigh_proc_base_reachable_time; + /* ReachableTime (in milliseconds) */ + t->neigh_vars[NEIGH_VAR_BASE_REACHABLE_TIME_MS].proc_handler = + neigh_proc_base_reachable_time; } /* Don't export sysctls to unprivileged users */ diff --git a/net/ipv4/netfilter/nft_redir_ipv4.c b/net/ipv4/netfilter/nft_redir_ipv4.c index ff2d23d..6ecfce6 100644 --- a/net/ipv4/netfilter/nft_redir_ipv4.c +++ b/net/ipv4/netfilter/nft_redir_ipv4.c @@ -27,10 +27,10 @@ static void nft_redir_ipv4_eval(const struct nft_expr *expr, memset(&mr, 0, sizeof(mr)); if (priv->sreg_proto_min) { - mr.range[0].min.all = (__force __be16) - data[priv->sreg_proto_min].data[0]; - mr.range[0].max.all = (__force __be16) - data[priv->sreg_proto_max].data[0]; + mr.range[0].min.all = + *(__be16 *)&data[priv->sreg_proto_min].data[0]; + mr.range[0].max.all = + *(__be16 *)&data[priv->sreg_proto_max].data[0]; mr.range[0].flags |= NF_NAT_RANGE_PROTO_SPECIFIED; } diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 7f18262..65caf8b 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -2019,7 +2019,7 @@ static bool tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle, if (unlikely(!tcp_snd_wnd_test(tp, skb, mss_now))) break; - if (tso_segs == 1) { + if (tso_segs == 1 || !max_segs) { if (unlikely(!tcp_nagle_test(tp, skb, mss_now, (tcp_skb_is_last(sk, skb) ? nonagle : TCP_NAGLE_PUSH)))) @@ -2032,7 +2032,7 @@ static bool tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle, } limit = mss_now; - if (tso_segs > 1 && !tcp_urg_mode(tp)) + if (tso_segs > 1 && max_segs && !tcp_urg_mode(tp)) limit = tcp_mss_split_point(sk, skb, mss_now, min_t(unsigned int, cwnd_quota, diff --git a/net/ipv6/netfilter/nft_redir_ipv6.c b/net/ipv6/netfilter/nft_redir_ipv6.c index 2433a6b..11820b6 100644 --- a/net/ipv6/netfilter/nft_redir_ipv6.c +++ b/net/ipv6/netfilter/nft_redir_ipv6.c @@ -27,10 +27,10 @@ static void nft_redir_ipv6_eval(const struct nft_expr *expr, memset(&range, 0, sizeof(range)); if (priv->sreg_proto_min) { - range.min_proto.all = (__force __be16) - data[priv->sreg_proto_min].data[0]; - range.max_proto.all = (__force __be16) - data[priv->sreg_proto_max].data[0]; + range.min_proto.all = + *(__be16 *)&data[priv->sreg_proto_min].data[0]; + range.max_proto.all = + *(__be16 *)&data[priv->sreg_proto_max].data[0]; range.flags |= NF_NAT_RANGE_PROTO_SPECIFIED; } diff --git a/net/mac80211/key.c b/net/mac80211/key.c index 0bb7038..bd4e46e 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -140,7 +140,9 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key) if (!ret) { key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE; - if (!(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC)) + if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) || + (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) || + (key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE))) sdata->crypto_tx_tailroom_needed_cnt--; WARN_ON((key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) && @@ -188,7 +190,9 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key) sta = key->sta; sdata = key->sdata; - if (!(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC)) + if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) || + (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) || + (key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE))) increment_tailroom_need_count(sdata); ret = drv_set_key(key->local, DISABLE_KEY, sdata, @@ -884,7 +888,9 @@ void ieee80211_remove_key(struct ieee80211_key_conf *keyconf) if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) { key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE; - if (!(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC)) + if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) || + (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) || + (key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE))) increment_tailroom_need_count(key->sdata); } diff --git a/net/netfilter/ipvs/ip_vs_ftp.c b/net/netfilter/ipvs/ip_vs_ftp.c index 1d5341f..5d3daae 100644 --- a/net/netfilter/ipvs/ip_vs_ftp.c +++ b/net/netfilter/ipvs/ip_vs_ftp.c @@ -183,6 +183,8 @@ static int ip_vs_ftp_out(struct ip_vs_app *app, struct ip_vs_conn *cp, struct nf_conn *ct; struct net *net; + *diff = 0; + #ifdef CONFIG_IP_VS_IPV6 /* This application helper doesn't work with IPv6 yet, * so turn this into a no-op for IPv6 packets @@ -191,8 +193,6 @@ static int ip_vs_ftp_out(struct ip_vs_app *app, struct ip_vs_conn *cp, return 1; #endif - *diff = 0; - /* Only useful for established sessions */ if (cp->state != IP_VS_TCP_S_ESTABLISHED) return 1; @@ -322,6 +322,9 @@ static int ip_vs_ftp_in(struct ip_vs_app *app, struct ip_vs_conn *cp, struct ip_vs_conn *n_cp; struct net *net; + /* no diff required for incoming packets */ + *diff = 0; + #ifdef CONFIG_IP_VS_IPV6 /* This application helper doesn't work with IPv6 yet, * so turn this into a no-op for IPv6 packets @@ -330,9 +333,6 @@ static int ip_vs_ftp_in(struct ip_vs_app *app, struct ip_vs_conn *cp, return 1; #endif - /* no diff required for incoming packets */ - *diff = 0; - /* Only useful for established sessions */ if (cp->state != IP_VS_TCP_S_ESTABLISHED) return 1; diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index a116748..46d1b26 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -611,16 +611,15 @@ __nf_conntrack_confirm(struct sk_buff *skb) */ NF_CT_ASSERT(!nf_ct_is_confirmed(ct)); pr_debug("Confirming conntrack %p\n", ct); - /* We have to check the DYING flag inside the lock to prevent - a race against nf_ct_get_next_corpse() possibly called from - user context, else we insert an already 'dead' hash, blocking - further use of that particular connection -JM */ + /* We have to check the DYING flag after unlink to prevent + * a race against nf_ct_get_next_corpse() possibly called from + * user context, else we insert an already 'dead' hash, blocking + * further use of that particular connection -JM. + */ + nf_ct_del_from_dying_or_unconfirmed_list(ct); - if (unlikely(nf_ct_is_dying(ct))) { - nf_conntrack_double_unlock(hash, reply_hash); - local_bh_enable(); - return NF_ACCEPT; - } + if (unlikely(nf_ct_is_dying(ct))) + goto out; /* See if there's one in the list already, including reverse: NAT could have grabbed it without realizing, since we're @@ -636,8 +635,6 @@ __nf_conntrack_confirm(struct sk_buff *skb) zone == nf_ct_zone(nf_ct_tuplehash_to_ctrack(h))) goto out; - nf_ct_del_from_dying_or_unconfirmed_list(ct); - /* Timer relative to confirmation time, not original setting time, otherwise we'd get timer wrap in weird delay cases. */ @@ -673,6 +670,7 @@ __nf_conntrack_confirm(struct sk_buff *skb) return NF_ACCEPT; out: + nf_ct_add_to_dying_list(ct); nf_conntrack_double_unlock(hash, reply_hash); NF_CT_STAT_INC(net, insert_failed); local_bh_enable(); diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 129a8da..3b3ddb4 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -713,16 +713,12 @@ static int nft_flush_table(struct nft_ctx *ctx) struct nft_chain *chain, *nc; struct nft_set *set, *ns; - list_for_each_entry_safe(chain, nc, &ctx->table->chains, list) { + list_for_each_entry(chain, &ctx->table->chains, list) { ctx->chain = chain; err = nft_delrule_by_chain(ctx); if (err < 0) goto out; - - err = nft_delchain(ctx); - if (err < 0) - goto out; } list_for_each_entry_safe(set, ns, &ctx->table->sets, list) { @@ -735,6 +731,14 @@ static int nft_flush_table(struct nft_ctx *ctx) goto out; } + list_for_each_entry_safe(chain, nc, &ctx->table->chains, list) { + ctx->chain = chain; + + err = nft_delchain(ctx); + if (err < 0) + goto out; + } + err = nft_deltable(ctx); out: return err; diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c index cde4a67..c421d94 100644 --- a/net/netfilter/nfnetlink.c +++ b/net/netfilter/nfnetlink.c @@ -321,7 +321,8 @@ replay: nlh = nlmsg_hdr(skb); err = 0; - if (nlh->nlmsg_len < NLMSG_HDRLEN) { + if (nlmsg_len(nlh) < sizeof(struct nfgenmsg) || + skb->len < nlh->nlmsg_len) { err = -EINVAL; goto ack; } @@ -469,7 +470,7 @@ static int nfnetlink_bind(struct net *net, int group) int type; if (group <= NFNLGRP_NONE || group > NFNLGRP_MAX) - return -EINVAL; + return 0; type = nfnl_group2type[group]; diff --git a/net/netfilter/nft_nat.c b/net/netfilter/nft_nat.c index afe2b0b..aff54fb1 100644 --- a/net/netfilter/nft_nat.c +++ b/net/netfilter/nft_nat.c @@ -65,10 +65,10 @@ static void nft_nat_eval(const struct nft_expr *expr, } if (priv->sreg_proto_min) { - range.min_proto.all = (__force __be16) - data[priv->sreg_proto_min].data[0]; - range.max_proto.all = (__force __be16) - data[priv->sreg_proto_max].data[0]; + range.min_proto.all = + *(__be16 *)&data[priv->sreg_proto_min].data[0]; + range.max_proto.all = + *(__be16 *)&data[priv->sreg_proto_max].data[0]; range.flags |= NF_NAT_RANGE_PROTO_SPECIFIED; } diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c index 4e9a5f0..b07349e 100644 --- a/net/openvswitch/datapath.c +++ b/net/openvswitch/datapath.c @@ -524,7 +524,7 @@ static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info) struct vport *input_vport; int len; int err; - bool log = !a[OVS_FLOW_ATTR_PROBE]; + bool log = !a[OVS_PACKET_ATTR_PROBE]; err = -EINVAL; if (!a[OVS_PACKET_ATTR_PACKET] || !a[OVS_PACKET_ATTR_KEY] || @@ -610,6 +610,7 @@ static const struct nla_policy packet_policy[OVS_PACKET_ATTR_MAX + 1] = { [OVS_PACKET_ATTR_PACKET] = { .len = ETH_HLEN }, [OVS_PACKET_ATTR_KEY] = { .type = NLA_NESTED }, [OVS_PACKET_ATTR_ACTIONS] = { .type = NLA_NESTED }, + [OVS_PACKET_ATTR_PROBE] = { .type = NLA_FLAG }, }; static const struct genl_ops dp_packet_genl_ops[] = { diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c index 70bef2a..da2fae0 100644 --- a/net/openvswitch/flow.c +++ b/net/openvswitch/flow.c @@ -70,6 +70,7 @@ void ovs_flow_stats_update(struct sw_flow *flow, __be16 tcp_flags, { struct flow_stats *stats; int node = numa_node_id(); + int len = skb->len + (vlan_tx_tag_present(skb) ? VLAN_HLEN : 0); stats = rcu_dereference(flow->stats[node]); @@ -105,7 +106,7 @@ void ovs_flow_stats_update(struct sw_flow *flow, __be16 tcp_flags, if (likely(new_stats)) { new_stats->used = jiffies; new_stats->packet_count = 1; - new_stats->byte_count = skb->len; + new_stats->byte_count = len; new_stats->tcp_flags = tcp_flags; spin_lock_init(&new_stats->lock); @@ -120,7 +121,7 @@ void ovs_flow_stats_update(struct sw_flow *flow, __be16 tcp_flags, stats->used = jiffies; stats->packet_count++; - stats->byte_count += skb->len; + stats->byte_count += len; stats->tcp_flags |= tcp_flags; unlock: spin_unlock(&stats->lock); diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c index 53f3ebb..2034c6d 100644 --- a/net/openvswitch/vport.c +++ b/net/openvswitch/vport.c @@ -480,7 +480,7 @@ void ovs_vport_receive(struct vport *vport, struct sk_buff *skb, stats = this_cpu_ptr(vport->percpu_stats); u64_stats_update_begin(&stats->syncp); stats->rx_packets++; - stats->rx_bytes += skb->len; + stats->rx_bytes += skb->len + (vlan_tx_tag_present(skb) ? VLAN_HLEN : 0); u64_stats_update_end(&stats->syncp); OVS_CB(skb)->input_vport = vport; diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 6880f34a..9cfe2e1 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -2517,7 +2517,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) err = -EINVAL; if (sock->type == SOCK_DGRAM) { offset = dev_hard_header(skb, dev, ntohs(proto), addr, NULL, len); - if (unlikely(offset) < 0) + if (unlikely(offset < 0)) goto out_free; } else { if (ll_header_truncated(dev, len)) diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c index 96ceefe..a9e174f 100644 --- a/net/tipc/bcast.c +++ b/net/tipc/bcast.c @@ -220,10 +220,11 @@ static void bclink_retransmit_pkt(u32 after, u32 to) struct sk_buff *skb; skb_queue_walk(&bcl->outqueue, skb) { - if (more(buf_seqno(skb), after)) + if (more(buf_seqno(skb), after)) { + tipc_link_retransmit(bcl, skb, mod(to - after)); break; + } } - tipc_link_retransmit(bcl, skb, mod(to - after)); } /** diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean index 1bca180..627f8cb 100644 --- a/scripts/Makefile.clean +++ b/scripts/Makefile.clean @@ -42,19 +42,19 @@ __clean-files := $(extra-y) $(extra-m) $(extra-) \ __clean-files := $(filter-out $(no-clean-files), $(__clean-files)) -# as clean-files is given relative to the current directory, this adds -# a $(obj) prefix, except for absolute paths +# clean-files is given relative to the current directory, unless it +# starts with $(objtree)/ (which means "./", so do not add "./" unless +# you want to delete a file from the toplevel object directory). __clean-files := $(wildcard \ - $(addprefix $(obj)/, $(filter-out /%, $(__clean-files))) \ - $(filter /%, $(__clean-files))) + $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(__clean-files))) \ + $(filter $(objtree)/%, $(__clean-files))) -# as clean-dirs is given relative to the current directory, this adds -# a $(obj) prefix, except for absolute paths +# same as clean-files __clean-dirs := $(wildcard \ - $(addprefix $(obj)/, $(filter-out /%, $(clean-dirs))) \ - $(filter /%, $(clean-dirs))) + $(addprefix $(obj)/, $(filter-out $(objtree)/%, $(clean-dirs))) \ + $(filter $(objtree)/%, $(clean-dirs))) # ========================================================================== diff --git a/security/keys/gc.c b/security/keys/gc.c index 9609a7f..c795237 100644 --- a/security/keys/gc.c +++ b/security/keys/gc.c @@ -148,12 +148,12 @@ static noinline void key_gc_unused_keys(struct list_head *keys) if (test_bit(KEY_FLAG_INSTANTIATED, &key->flags)) atomic_dec(&key->user->nikeys); - key_user_put(key->user); - /* now throw away the key memory */ if (key->type->destroy) key->type->destroy(key); + key_user_put(key->user); + kfree(key->description); #ifdef KEY_DEBUGGING diff --git a/sound/firewire/fireworks/fireworks_transaction.c b/sound/firewire/fireworks/fireworks_transaction.c index 255dabc..2a85e42 100644 --- a/sound/firewire/fireworks/fireworks_transaction.c +++ b/sound/firewire/fireworks/fireworks_transaction.c @@ -124,7 +124,7 @@ copy_resp_to_buf(struct snd_efw *efw, void *data, size_t length, int *rcode) spin_lock_irq(&efw->lock); t = (struct snd_efw_transaction *)data; - length = min_t(size_t, t->length * sizeof(t->length), length); + length = min_t(size_t, be32_to_cpu(t->length) * sizeof(u32), length); if (efw->push_ptr < efw->pull_ptr) capacity = (unsigned int)(efw->pull_ptr - efw->push_ptr); diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 5f13d2d..b422e40 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -3353,6 +3353,7 @@ static const struct hda_codec_preset snd_hda_preset_hdmi[] = { { .id = 0x10de0067, .name = "MCP67 HDMI", .patch = patch_nvhdmi_2ch }, { .id = 0x10de0070, .name = "GPU 70 HDMI/DP", .patch = patch_nvhdmi }, { .id = 0x10de0071, .name = "GPU 71 HDMI/DP", .patch = patch_nvhdmi }, +{ .id = 0x10de0072, .name = "GPU 72 HDMI/DP", .patch = patch_nvhdmi }, { .id = 0x10de8001, .name = "MCP73 HDMI", .patch = patch_nvhdmi_2ch }, { .id = 0x11069f80, .name = "VX900 HDMI/DP", .patch = patch_via_hdmi }, { .id = 0x11069f81, .name = "VX900 HDMI/DP", .patch = patch_via_hdmi }, @@ -3413,6 +3414,7 @@ MODULE_ALIAS("snd-hda-codec-id:10de0060"); MODULE_ALIAS("snd-hda-codec-id:10de0067"); MODULE_ALIAS("snd-hda-codec-id:10de0070"); MODULE_ALIAS("snd-hda-codec-id:10de0071"); +MODULE_ALIAS("snd-hda-codec-id:10de0072"); MODULE_ALIAS("snd-hda-codec-id:10de8001"); MODULE_ALIAS("snd-hda-codec-id:11069f80"); MODULE_ALIAS("snd-hda-codec-id:11069f81"); diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 4f6413e..605d140 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -568,9 +568,9 @@ static void stac_store_hints(struct hda_codec *codec) spec->gpio_mask; } if (get_int_hint(codec, "gpio_dir", &spec->gpio_dir)) - spec->gpio_mask &= spec->gpio_mask; - if (get_int_hint(codec, "gpio_data", &spec->gpio_data)) spec->gpio_dir &= spec->gpio_mask; + if (get_int_hint(codec, "gpio_data", &spec->gpio_data)) + spec->gpio_data &= spec->gpio_mask; if (get_int_hint(codec, "eapd_mask", &spec->eapd_mask)) spec->eapd_mask &= spec->gpio_mask; if (get_int_hint(codec, "gpio_mute", &spec->gpio_mute)) diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c index 2728447..327f864 100644 --- a/sound/usb/caiaq/audio.c +++ b/sound/usb/caiaq/audio.c @@ -816,7 +816,7 @@ int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *cdev) return -EINVAL; } - if (cdev->n_streams < 2) { + if (cdev->n_streams < 1) { dev_err(dev, "bogus number of streams: %d\n", cdev->n_streams); return -EINVAL; } diff --git a/tools/lib/lockdep/preload.c b/tools/lib/lockdep/preload.c index 6f80360..0b0112c 100644 --- a/tools/lib/lockdep/preload.c +++ b/tools/lib/lockdep/preload.c @@ -317,7 +317,7 @@ int pthread_mutex_destroy(pthread_mutex_t *mutex) * * TODO: Hook into free() and add that check there as well. */ - debug_check_no_locks_freed(mutex, mutex + sizeof(*mutex)); + debug_check_no_locks_freed(mutex, sizeof(*mutex)); __del_lock(__get_lock(mutex)); return ll_pthread_mutex_destroy(mutex); } @@ -341,7 +341,7 @@ int pthread_rwlock_destroy(pthread_rwlock_t *rwlock) { try_init_preload(); - debug_check_no_locks_freed(rwlock, rwlock + sizeof(*rwlock)); + debug_check_no_locks_freed(rwlock, sizeof(*rwlock)); __del_lock(__get_lock(rwlock)); return ll_pthread_rwlock_destroy(rwlock); } diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index e7417fe..747f861 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -232,7 +232,7 @@ static int __cmd_annotate(struct perf_annotate *ann) if (nr_samples > 0) { total_nr_samples += nr_samples; hists__collapse_resort(hists, NULL); - hists__output_resort(hists); + hists__output_resort(hists, NULL); if (symbol_conf.event_group && !perf_evsel__is_group_leader(pos)) diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c index 1ce425d..1fd96c1 100644 --- a/tools/perf/builtin-diff.c +++ b/tools/perf/builtin-diff.c @@ -545,6 +545,42 @@ hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, return __hist_entry__cmp_compute(p_left, p_right, c); } +static int64_t +hist_entry__cmp_nop(struct hist_entry *left __maybe_unused, + struct hist_entry *right __maybe_unused) +{ + return 0; +} + +static int64_t +hist_entry__cmp_baseline(struct hist_entry *left, struct hist_entry *right) +{ + if (sort_compute) + return 0; + + if (left->stat.period == right->stat.period) + return 0; + return left->stat.period > right->stat.period ? 1 : -1; +} + +static int64_t +hist_entry__cmp_delta(struct hist_entry *left, struct hist_entry *right) +{ + return hist_entry__cmp_compute(right, left, COMPUTE_DELTA); +} + +static int64_t +hist_entry__cmp_ratio(struct hist_entry *left, struct hist_entry *right) +{ + return hist_entry__cmp_compute(right, left, COMPUTE_RATIO); +} + +static int64_t +hist_entry__cmp_wdiff(struct hist_entry *left, struct hist_entry *right) +{ + return hist_entry__cmp_compute(right, left, COMPUTE_WEIGHTED_DIFF); +} + static void insert_hist_entry_by_compute(struct rb_root *root, struct hist_entry *he, int c) @@ -605,7 +641,7 @@ static void hists__process(struct hists *hists) hists__precompute(hists); hists__compute_resort(hists); } else { - hists__output_resort(hists); + hists__output_resort(hists, NULL); } hists__fprintf(hists, true, 0, 0, 0, stdout); @@ -1038,27 +1074,35 @@ static void data__hpp_register(struct data__file *d, int idx) fmt->header = hpp__header; fmt->width = hpp__width; fmt->entry = hpp__entry_global; + fmt->cmp = hist_entry__cmp_nop; + fmt->collapse = hist_entry__cmp_nop; /* TODO more colors */ switch (idx) { case PERF_HPP_DIFF__BASELINE: fmt->color = hpp__color_baseline; + fmt->sort = hist_entry__cmp_baseline; break; case PERF_HPP_DIFF__DELTA: fmt->color = hpp__color_delta; + fmt->sort = hist_entry__cmp_delta; break; case PERF_HPP_DIFF__RATIO: fmt->color = hpp__color_ratio; + fmt->sort = hist_entry__cmp_ratio; break; case PERF_HPP_DIFF__WEIGHTED_DIFF: fmt->color = hpp__color_wdiff; + fmt->sort = hist_entry__cmp_wdiff; break; default: + fmt->sort = hist_entry__cmp_nop; break; } init_header(d, dfmt); perf_hpp__column_register(fmt); + perf_hpp__register_sort_field(fmt); } static void ui_init(void) diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c index 011195e..198f3c3 100644 --- a/tools/perf/builtin-list.c +++ b/tools/perf/builtin-list.c @@ -19,7 +19,9 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused) { int i; - const struct option list_options[] = { + bool raw_dump = false; + struct option list_options[] = { + OPT_BOOLEAN(0, "raw-dump", &raw_dump, "Dump raw events"), OPT_END() }; const char * const list_usage[] = { @@ -27,11 +29,18 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused) NULL }; + set_option_flag(list_options, 0, "raw-dump", PARSE_OPT_HIDDEN); + argc = parse_options(argc, argv, list_options, list_usage, PARSE_OPT_STOP_AT_NON_OPTION); setup_pager(); + if (raw_dump) { + print_events(NULL, true); + return 0; + } + if (argc == 0) { print_events(NULL, false); return 0; @@ -53,8 +62,6 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused) print_hwcache_events(NULL, false); else if (strcmp(argv[i], "pmu") == 0) print_pmu_events(NULL, false); - else if (strcmp(argv[i], "--raw-dump") == 0) - print_events(NULL, true); else { char *sep = strchr(argv[i], ':'), *s; int sep_idx; diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 3936760..072ae8a 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -457,6 +457,19 @@ static void report__collapse_hists(struct report *rep) ui_progress__finish(); } +static void report__output_resort(struct report *rep) +{ + struct ui_progress prog; + struct perf_evsel *pos; + + ui_progress__init(&prog, rep->nr_entries, "Sorting events for output..."); + + evlist__for_each(rep->session->evlist, pos) + hists__output_resort(evsel__hists(pos), &prog); + + ui_progress__finish(); +} + static int __cmd_report(struct report *rep) { int ret; @@ -505,13 +518,20 @@ static int __cmd_report(struct report *rep) if (session_done()) return 0; + /* + * recalculate number of entries after collapsing since it + * might be changed during the collapse phase. + */ + rep->nr_entries = 0; + evlist__for_each(session->evlist, pos) + rep->nr_entries += evsel__hists(pos)->nr_entries; + if (rep->nr_entries == 0) { ui__error("The %s file has no samples!\n", file->path); return 0; } - evlist__for_each(session->evlist, pos) - hists__output_resort(evsel__hists(pos)); + report__output_resort(rep); return report__browse_hists(rep); } diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 0aa7747..961cea1 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -285,7 +285,7 @@ static void perf_top__print_sym_table(struct perf_top *top) } hists__collapse_resort(hists, NULL); - hists__output_resort(hists); + hists__output_resort(hists, NULL); hists__output_recalc_col_len(hists, top->print_entries - printed); putchar('\n'); @@ -554,7 +554,7 @@ static void perf_top__sort_new_samples(void *arg) } hists__collapse_resort(hists, NULL); - hists__output_resort(hists); + hists__output_resort(hists, NULL); } static void *display_thread_tui(void *arg) diff --git a/tools/perf/tests/hists_cumulate.c b/tools/perf/tests/hists_cumulate.c index 614d5c4..8d110de 100644 --- a/tools/perf/tests/hists_cumulate.c +++ b/tools/perf/tests/hists_cumulate.c @@ -187,7 +187,7 @@ static int do_test(struct hists *hists, struct result *expected, size_t nr_expec * function since TEST_ASSERT_VAL() returns in case of failure. */ hists__collapse_resort(hists, NULL); - hists__output_resort(hists); + hists__output_resort(hists, NULL); if (verbose > 2) { pr_info("use callchain: %d, cumulate callchain: %d\n", @@ -454,12 +454,12 @@ static int test3(struct perf_evsel *evsel, struct machine *machine) * 30.00% 10.00% perf perf [.] cmd_record * 20.00% 0.00% bash libc [.] malloc * 10.00% 10.00% bash [kernel] [k] page_fault - * 10.00% 10.00% perf [kernel] [k] schedule - * 10.00% 0.00% perf [kernel] [k] sys_perf_event_open + * 10.00% 10.00% bash bash [.] xmalloc * 10.00% 10.00% perf [kernel] [k] page_fault - * 10.00% 10.00% perf libc [.] free * 10.00% 10.00% perf libc [.] malloc - * 10.00% 10.00% bash bash [.] xmalloc + * 10.00% 10.00% perf [kernel] [k] schedule + * 10.00% 10.00% perf libc [.] free + * 10.00% 0.00% perf [kernel] [k] sys_perf_event_open */ struct result expected[] = { { 7000, 2000, "perf", "perf", "main" }, @@ -468,12 +468,12 @@ static int test3(struct perf_evsel *evsel, struct machine *machine) { 3000, 1000, "perf", "perf", "cmd_record" }, { 2000, 0, "bash", "libc", "malloc" }, { 1000, 1000, "bash", "[kernel]", "page_fault" }, - { 1000, 1000, "perf", "[kernel]", "schedule" }, - { 1000, 0, "perf", "[kernel]", "sys_perf_event_open" }, + { 1000, 1000, "bash", "bash", "xmalloc" }, { 1000, 1000, "perf", "[kernel]", "page_fault" }, + { 1000, 1000, "perf", "[kernel]", "schedule" }, { 1000, 1000, "perf", "libc", "free" }, { 1000, 1000, "perf", "libc", "malloc" }, - { 1000, 1000, "bash", "bash", "xmalloc" }, + { 1000, 0, "perf", "[kernel]", "sys_perf_event_open" }, }; symbol_conf.use_callchain = false; @@ -537,10 +537,13 @@ static int test4(struct perf_evsel *evsel, struct machine *machine) * malloc * main * - * 10.00% 10.00% perf [kernel] [k] schedule + * 10.00% 10.00% bash bash [.] xmalloc * | - * --- schedule - * run_command + * --- xmalloc + * malloc + * xmalloc <--- NOTE: there's a cycle + * malloc + * xmalloc * main * * 10.00% 0.00% perf [kernel] [k] sys_perf_event_open @@ -556,6 +559,12 @@ static int test4(struct perf_evsel *evsel, struct machine *machine) * run_command * main * + * 10.00% 10.00% perf [kernel] [k] schedule + * | + * --- schedule + * run_command + * main + * * 10.00% 10.00% perf libc [.] free * | * --- free @@ -570,15 +579,6 @@ static int test4(struct perf_evsel *evsel, struct machine *machine) * run_command * main * - * 10.00% 10.00% bash bash [.] xmalloc - * | - * --- xmalloc - * malloc - * xmalloc <--- NOTE: there's a cycle - * malloc - * xmalloc - * main - * */ struct result expected[] = { { 7000, 2000, "perf", "perf", "main" }, @@ -587,12 +587,12 @@ static int test4(struct perf_evsel *evsel, struct machine *machine) { 3000, 1000, "perf", "perf", "cmd_record" }, { 2000, 0, "bash", "libc", "malloc" }, { 1000, 1000, "bash", "[kernel]", "page_fault" }, - { 1000, 1000, "perf", "[kernel]", "schedule" }, + { 1000, 1000, "bash", "bash", "xmalloc" }, { 1000, 0, "perf", "[kernel]", "sys_perf_event_open" }, { 1000, 1000, "perf", "[kernel]", "page_fault" }, + { 1000, 1000, "perf", "[kernel]", "schedule" }, { 1000, 1000, "perf", "libc", "free" }, { 1000, 1000, "perf", "libc", "malloc" }, - { 1000, 1000, "bash", "bash", "xmalloc" }, }; struct callchain_result expected_callchain[] = { { @@ -622,9 +622,12 @@ static int test4(struct perf_evsel *evsel, struct machine *machine) { "bash", "main" }, }, }, { - 3, { { "[kernel]", "schedule" }, - { "perf", "run_command" }, - { "perf", "main" }, }, + 6, { { "bash", "xmalloc" }, + { "libc", "malloc" }, + { "bash", "xmalloc" }, + { "libc", "malloc" }, + { "bash", "xmalloc" }, + { "bash", "main" }, }, }, { 3, { { "[kernel]", "sys_perf_event_open" }, @@ -638,6 +641,11 @@ static int test4(struct perf_evsel *evsel, struct machine *machine) { "perf", "main" }, }, }, { + 3, { { "[kernel]", "schedule" }, + { "perf", "run_command" }, + { "perf", "main" }, }, + }, + { 4, { { "libc", "free" }, { "perf", "cmd_record" }, { "perf", "run_command" }, @@ -649,14 +657,6 @@ static int test4(struct perf_evsel *evsel, struct machine *machine) { "perf", "run_command" }, { "perf", "main" }, }, }, - { - 6, { { "bash", "xmalloc" }, - { "libc", "malloc" }, - { "bash", "xmalloc" }, - { "libc", "malloc" }, - { "bash", "xmalloc" }, - { "bash", "main" }, }, - }, }; symbol_conf.use_callchain = true; diff --git a/tools/perf/tests/hists_filter.c b/tools/perf/tests/hists_filter.c index 74f257a..59e53db 100644 --- a/tools/perf/tests/hists_filter.c +++ b/tools/perf/tests/hists_filter.c @@ -138,7 +138,7 @@ int test__hists_filter(void) struct hists *hists = evsel__hists(evsel); hists__collapse_resort(hists, NULL); - hists__output_resort(hists); + hists__output_resort(hists, NULL); if (verbose > 2) { pr_info("Normal histogram\n"); diff --git a/tools/perf/tests/hists_output.c b/tools/perf/tests/hists_output.c index a748f2b..f554761 100644 --- a/tools/perf/tests/hists_output.c +++ b/tools/perf/tests/hists_output.c @@ -152,7 +152,7 @@ static int test1(struct perf_evsel *evsel, struct machine *machine) goto out; hists__collapse_resort(hists, NULL); - hists__output_resort(hists); + hists__output_resort(hists, NULL); if (verbose > 2) { pr_info("[fields = %s, sort = %s]\n", field_order, sort_order); @@ -252,7 +252,7 @@ static int test2(struct perf_evsel *evsel, struct machine *machine) goto out; hists__collapse_resort(hists, NULL); - hists__output_resort(hists); + hists__output_resort(hists, NULL); if (verbose > 2) { pr_info("[fields = %s, sort = %s]\n", field_order, sort_order); @@ -306,7 +306,7 @@ static int test3(struct perf_evsel *evsel, struct machine *machine) goto out; hists__collapse_resort(hists, NULL); - hists__output_resort(hists); + hists__output_resort(hists, NULL); if (verbose > 2) { pr_info("[fields = %s, sort = %s]\n", field_order, sort_order); @@ -384,7 +384,7 @@ static int test4(struct perf_evsel *evsel, struct machine *machine) goto out; hists__collapse_resort(hists, NULL); - hists__output_resort(hists); + hists__output_resort(hists, NULL); if (verbose > 2) { pr_info("[fields = %s, sort = %s]\n", field_order, sort_order); @@ -487,7 +487,7 @@ static int test5(struct perf_evsel *evsel, struct machine *machine) goto out; hists__collapse_resort(hists, NULL); - hists__output_resort(hists); + hists__output_resort(hists, NULL); if (verbose > 2) { pr_info("[fields = %s, sort = %s]\n", field_order, sort_order); diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index e6bb04b..788506e 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -550,7 +550,7 @@ static int hist_browser__show_callchain(struct hist_browser *browser, bool need_percent; node = rb_first(root); - need_percent = !!rb_next(node); + need_percent = node && rb_next(node); while (node) { struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node); diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c index dc0d095..482adae 100644 --- a/tools/perf/ui/hist.c +++ b/tools/perf/ui/hist.c @@ -204,6 +204,9 @@ static int __hpp__sort_acc(struct hist_entry *a, struct hist_entry *b, if (ret) return ret; + if (a->thread != b->thread || !symbol_conf.use_callchain) + return 0; + ret = b->callchain->max_depth - a->callchain->max_depth; } return ret; diff --git a/tools/perf/ui/tui/setup.c b/tools/perf/ui/tui/setup.c index 2f61256..3c38f25 100644 --- a/tools/perf/ui/tui/setup.c +++ b/tools/perf/ui/tui/setup.c @@ -1,5 +1,8 @@ #include <signal.h> #include <stdbool.h> +#ifdef HAVE_BACKTRACE_SUPPORT +#include <execinfo.h> +#endif #include "../../util/cache.h" #include "../../util/debug.h" @@ -88,6 +91,25 @@ int ui__getch(int delay_secs) return SLkp_getkey(); } +#ifdef HAVE_BACKTRACE_SUPPORT +static void ui__signal_backtrace(int sig) +{ + void *stackdump[32]; + size_t size; + + ui__exit(false); + psignal(sig, "perf"); + + printf("-------- backtrace --------\n"); + size = backtrace(stackdump, ARRAY_SIZE(stackdump)); + backtrace_symbols_fd(stackdump, size, STDOUT_FILENO); + + exit(0); +} +#else +# define ui__signal_backtrace ui__signal +#endif + static void ui__signal(int sig) { ui__exit(false); @@ -122,8 +144,8 @@ int ui__init(void) ui_browser__init(); tui_progress__init(); - signal(SIGSEGV, ui__signal); - signal(SIGFPE, ui__signal); + signal(SIGSEGV, ui__signal_backtrace); + signal(SIGFPE, ui__signal_backtrace); signal(SIGINT, ui__signal); signal(SIGQUIT, ui__signal); signal(SIGTERM, ui__signal); diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c index 64b377e..14e7a12 100644 --- a/tools/perf/util/callchain.c +++ b/tools/perf/util/callchain.c @@ -841,3 +841,33 @@ char *callchain_list__sym_name(struct callchain_list *cl, return bf; } + +static void free_callchain_node(struct callchain_node *node) +{ + struct callchain_list *list, *tmp; + struct callchain_node *child; + struct rb_node *n; + + list_for_each_entry_safe(list, tmp, &node->val, list) { + list_del(&list->list); + free(list); + } + + n = rb_first(&node->rb_root_in); + while (n) { + child = container_of(n, struct callchain_node, rb_node_in); + n = rb_next(n); + rb_erase(&child->rb_node_in, &node->rb_root_in); + + free_callchain_node(child); + free(child); + } +} + +void free_callchain(struct callchain_root *root) +{ + if (!symbol_conf.use_callchain) + return; + + free_callchain_node(&root->node); +} diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h index dbc08cf..c0ec1ac 100644 --- a/tools/perf/util/callchain.h +++ b/tools/perf/util/callchain.h @@ -198,4 +198,6 @@ static inline int arch_skip_callchain_idx(struct thread *thread __maybe_unused, char *callchain_list__sym_name(struct callchain_list *cl, char *bf, size_t bfsize, bool show_dso); +void free_callchain(struct callchain_root *root); + #endif /* __PERF_CALLCHAIN_H */ diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index 6e88b9e..1823955 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -6,6 +6,7 @@ #include "evlist.h" #include "evsel.h" #include "annotate.h" +#include "ui/progress.h" #include <math.h> static bool hists__filter_entry_by_dso(struct hists *hists, @@ -303,7 +304,7 @@ static struct hist_entry *hist_entry__new(struct hist_entry *template, size_t callchain_size = 0; struct hist_entry *he; - if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) + if (symbol_conf.use_callchain) callchain_size = sizeof(struct callchain_root); he = zalloc(sizeof(*he) + callchain_size); @@ -736,7 +737,7 @@ iter_add_single_cumulative_entry(struct hist_entry_iter *iter, iter->he = he; he_cache[iter->curr++] = he; - callchain_append(he->callchain, &callchain_cursor, sample->period); + hist_entry__append_callchain(he, sample); /* * We need to re-initialize the cursor since callchain_append() @@ -809,7 +810,8 @@ iter_add_next_cumulative_entry(struct hist_entry_iter *iter, iter->he = he; he_cache[iter->curr++] = he; - callchain_append(he->callchain, &cursor, sample->period); + if (symbol_conf.use_callchain) + callchain_append(he->callchain, &cursor, sample->period); return 0; } @@ -945,6 +947,7 @@ void hist_entry__free(struct hist_entry *he) zfree(&he->mem_info); zfree(&he->stat_acc); free_srcline(he->srcline); + free_callchain(he->callchain); free(he); } @@ -987,6 +990,7 @@ static bool hists__collapse_insert_entry(struct hists *hists __maybe_unused, else p = &(*p)->rb_right; } + hists->nr_entries++; rb_link_node(&he->rb_node_in, parent, p); rb_insert_color(&he->rb_node_in, root); @@ -1024,7 +1028,10 @@ void hists__collapse_resort(struct hists *hists, struct ui_progress *prog) if (!sort__need_collapse) return; + hists->nr_entries = 0; + root = hists__get_rotate_entries_in(hists); + next = rb_first(root); while (next) { @@ -1119,7 +1126,7 @@ static void __hists__insert_output_entry(struct rb_root *entries, rb_insert_color(&he->rb_node, entries); } -void hists__output_resort(struct hists *hists) +void hists__output_resort(struct hists *hists, struct ui_progress *prog) { struct rb_root *root; struct rb_node *next; @@ -1148,6 +1155,9 @@ void hists__output_resort(struct hists *hists) if (!n->filtered) hists__calc_col_len(hists, n); + + if (prog) + ui_progress__update(prog, 1); } } diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h index d0ef9a1..46bd503 100644 --- a/tools/perf/util/hist.h +++ b/tools/perf/util/hist.h @@ -121,7 +121,7 @@ int hist_entry__sort_snprintf(struct hist_entry *he, char *bf, size_t size, struct hists *hists); void hist_entry__free(struct hist_entry *); -void hists__output_resort(struct hists *hists); +void hists__output_resort(struct hists *hists, struct ui_progress *prog); void hists__collapse_resort(struct hists *hists, struct ui_progress *prog); void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel); diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index 28eb141..7f9b863 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -495,9 +495,11 @@ static int try_to_find_probe_trace_events(struct perf_probe_event *pev, } if (ntevs == 0) { /* No error but failed to find probe point. */ - pr_warning("Probe point '%s' not found.\n", + pr_warning("Probe point '%s' not found in debuginfo.\n", synthesize_perf_probe_point(&pev->point)); - return -ENOENT; + if (need_dwarf) + return -ENOENT; + return 0; } /* Error path : ntevs < 0 */ pr_debug("An error occurred in debuginfo analysis (%d).\n", ntevs); diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c index c7918f8..b5247d7 100644 --- a/tools/perf/util/probe-finder.c +++ b/tools/perf/util/probe-finder.c @@ -989,8 +989,24 @@ static int debuginfo__find_probes(struct debuginfo *dbg, int ret = 0; #if _ELFUTILS_PREREQ(0, 142) + Elf *elf; + GElf_Ehdr ehdr; + GElf_Shdr shdr; + /* Get the call frame information from this dwarf */ - pf->cfi = dwarf_getcfi_elf(dwarf_getelf(dbg->dbg)); + elf = dwarf_getelf(dbg->dbg); + if (elf == NULL) + return -EINVAL; + + if (gelf_getehdr(elf, &ehdr) == NULL) + return -EINVAL; + + if (elf_section_by_name(elf, &ehdr, &shdr, ".eh_frame", NULL) && + shdr.sh_type == SHT_PROGBITS) { + pf->cfi = dwarf_getcfi_elf(elf); + } else { + pf->cfi = dwarf_getcfi(dbg->dbg); + } #endif off = 0; diff --git a/tools/testing/selftests/exec/execveat.c b/tools/testing/selftests/exec/execveat.c index d273624..e238c95 100644 --- a/tools/testing/selftests/exec/execveat.c +++ b/tools/testing/selftests/exec/execveat.c @@ -62,7 +62,7 @@ static int _check_execveat_fail(int fd, const char *path, int flags, } static int check_execveat_invoked_rc(int fd, const char *path, int flags, - int expected_rc) + int expected_rc, int expected_rc2) { int status; int rc; @@ -98,9 +98,10 @@ static int check_execveat_invoked_rc(int fd, const char *path, int flags, child, status); return 1; } - if (WEXITSTATUS(status) != expected_rc) { - printf("[FAIL] (child %d exited with %d not %d)\n", - child, WEXITSTATUS(status), expected_rc); + if ((WEXITSTATUS(status) != expected_rc) && + (WEXITSTATUS(status) != expected_rc2)) { + printf("[FAIL] (child %d exited with %d not %d nor %d)\n", + child, WEXITSTATUS(status), expected_rc, expected_rc2); return 1; } printf("[OK]\n"); @@ -109,7 +110,7 @@ static int check_execveat_invoked_rc(int fd, const char *path, int flags, static int check_execveat(int fd, const char *path, int flags) { - return check_execveat_invoked_rc(fd, path, flags, 99); + return check_execveat_invoked_rc(fd, path, flags, 99, 99); } static char *concat(const char *left, const char *right) @@ -192,9 +193,15 @@ static int check_execveat_pathmax(int dot_dfd, const char *src, int is_script) * Execute as a long pathname relative to ".". If this is a script, * the interpreter will launch but fail to open the script because its * name ("/dev/fd/5/xxx....") is bigger than PATH_MAX. + * + * The failure code is usually 127 (POSIX: "If a command is not found, + * the exit status shall be 127."), but some systems give 126 (POSIX: + * "If the command name is found, but it is not an executable utility, + * the exit status shall be 126."), so allow either. */ if (is_script) - fail += check_execveat_invoked_rc(dot_dfd, longpath, 0, 127); + fail += check_execveat_invoked_rc(dot_dfd, longpath, 0, + 127, 126); else fail += check_execveat(dot_dfd, longpath, 0); diff --git a/tools/testing/selftests/mqueue/mq_perf_tests.c b/tools/testing/selftests/mqueue/mq_perf_tests.c index 94dae65..8519e9e 100644 --- a/tools/testing/selftests/mqueue/mq_perf_tests.c +++ b/tools/testing/selftests/mqueue/mq_perf_tests.c @@ -536,10 +536,9 @@ int main(int argc, char *argv[]) { struct mq_attr attr; char *option, *next_option; - int i, cpu; + int i, cpu, rc; struct sigaction sa; poptContext popt_context; - char rc; void *retval; main_thread = pthread_self(); diff --git a/tools/testing/selftests/vm/Makefile b/tools/testing/selftests/vm/Makefile index 4c4b1f6..077828c 100644 --- a/tools/testing/selftests/vm/Makefile +++ b/tools/testing/selftests/vm/Makefile @@ -7,7 +7,7 @@ BINARIES += transhuge-stress all: $(BINARIES) %: %.c - $(CC) $(CFLAGS) -o $@ $^ + $(CC) $(CFLAGS) -o $@ $^ -lrt run_tests: all @/bin/sh ./run_vmtests || (echo "vmtests: [FAIL]"; exit 1) |
