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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-05 15:32:18 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-05 15:32:18 -0800 |
commit | c2ed69cdc9da49a8d2d7b4212fd225abf902ceaa (patch) | |
tree | ae98c43f8f9e0828b64e0d8fca2d6402f424bf77 | |
parent | ef26b1691d11e17af205a4ff9c91458d931d11db (diff) | |
parent | 9eaa192d8988d621217a9e6071cd403fd6010496 (diff) | |
download | op-kernel-dev-c2ed69cdc9da49a8d2d7b4212fd225abf902ceaa.zip op-kernel-dev-c2ed69cdc9da49a8d2d7b4212fd225abf902ceaa.tar.gz |
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: Fix a section mismatch in arch/x86/kernel/setup.c
x86: Fixup last users of irq_chip->typename
x86: Remove BKL from apm_32
x86: Remove BKL from microcode
x86: use kernel_stack_pointer() in kprobes.c
x86: use kernel_stack_pointer() in kgdb.c
x86: use kernel_stack_pointer() in dumpstack.c
x86: use kernel_stack_pointer() in process_32.c
-rw-r--r-- | arch/x86/kernel/apm_32.c | 14 | ||||
-rw-r--r-- | arch/x86/kernel/dumpstack.c | 7 | ||||
-rw-r--r-- | arch/x86/kernel/kgdb.c | 3 | ||||
-rw-r--r-- | arch/x86/kernel/kprobes.c | 14 | ||||
-rw-r--r-- | arch/x86/kernel/microcode_core.c | 2 | ||||
-rw-r--r-- | arch/x86/kernel/process_32.c | 2 | ||||
-rw-r--r-- | arch/x86/kernel/setup.c | 4 | ||||
-rw-r--r-- | arch/x86/kernel/visws_quirks.c | 6 |
8 files changed, 18 insertions, 34 deletions
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c index 151ace6..b5b6b23 100644 --- a/arch/x86/kernel/apm_32.c +++ b/arch/x86/kernel/apm_32.c @@ -204,7 +204,6 @@ #include <linux/module.h> #include <linux/poll.h> -#include <linux/smp_lock.h> #include <linux/types.h> #include <linux/stddef.h> #include <linux/timer.h> @@ -403,6 +402,7 @@ static DECLARE_WAIT_QUEUE_HEAD(apm_waitqueue); static DECLARE_WAIT_QUEUE_HEAD(apm_suspend_waitqueue); static struct apm_user *user_list; static DEFINE_SPINLOCK(user_list_lock); +static DEFINE_MUTEX(apm_mutex); /* * Set up a segment that references the real mode segment 0x40 @@ -1531,7 +1531,7 @@ static long do_ioctl(struct file *filp, u_int cmd, u_long arg) return -EPERM; switch (cmd) { case APM_IOC_STANDBY: - lock_kernel(); + mutex_lock(&apm_mutex); if (as->standbys_read > 0) { as->standbys_read--; as->standbys_pending--; @@ -1540,10 +1540,10 @@ static long do_ioctl(struct file *filp, u_int cmd, u_long arg) queue_event(APM_USER_STANDBY, as); if (standbys_pending <= 0) standby(); - unlock_kernel(); + mutex_unlock(&apm_mutex); break; case APM_IOC_SUSPEND: - lock_kernel(); + mutex_lock(&apm_mutex); if (as->suspends_read > 0) { as->suspends_read--; as->suspends_pending--; @@ -1552,13 +1552,14 @@ static long do_ioctl(struct file *filp, u_int cmd, u_long arg) queue_event(APM_USER_SUSPEND, as); if (suspends_pending <= 0) { ret = suspend(1); + mutex_unlock(&apm_mutex); } else { as->suspend_wait = 1; + mutex_unlock(&apm_mutex); wait_event_interruptible(apm_suspend_waitqueue, as->suspend_wait == 0); ret = as->suspend_result; } - unlock_kernel(); return ret; default: return -ENOTTY; @@ -1608,12 +1609,10 @@ static int do_open(struct inode *inode, struct file *filp) { struct apm_user *as; - lock_kernel(); as = kmalloc(sizeof(*as), GFP_KERNEL); if (as == NULL) { printk(KERN_ERR "apm: cannot allocate struct of size %d bytes\n", sizeof(*as)); - unlock_kernel(); return -ENOMEM; } as->magic = APM_BIOS_MAGIC; @@ -1635,7 +1634,6 @@ static int do_open(struct inode *inode, struct file *filp) user_list = as; spin_unlock(&user_list_lock); filp->private_data = as; - unlock_kernel(); return 0; } diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c index 2d8a371..b8ce165 100644 --- a/arch/x86/kernel/dumpstack.c +++ b/arch/x86/kernel/dumpstack.c @@ -268,11 +268,12 @@ int __kprobes __die(const char *str, struct pt_regs *regs, long err) show_registers(regs); #ifdef CONFIG_X86_32 - sp = (unsigned long) (®s->sp); - savesegment(ss, ss); - if (user_mode(regs)) { + if (user_mode_vm(regs)) { sp = regs->sp; ss = regs->ss & 0xffff; + } else { + sp = kernel_stack_pointer(regs); + savesegment(ss, ss); } printk(KERN_EMERG "EIP: [<%08lx>] ", regs->ip); print_symbol("%s", regs->ip); diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c index 34e86b6..20a5b36 100644 --- a/arch/x86/kernel/kgdb.c +++ b/arch/x86/kernel/kgdb.c @@ -89,7 +89,6 @@ void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs) gdb_regs[GDB_SS] = __KERNEL_DS; gdb_regs[GDB_FS] = 0xFFFF; gdb_regs[GDB_GS] = 0xFFFF; - gdb_regs[GDB_SP] = (int)®s->sp; #else gdb_regs[GDB_R8] = regs->r8; gdb_regs[GDB_R9] = regs->r9; @@ -102,8 +101,8 @@ void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs) gdb_regs32[GDB_PS] = regs->flags; gdb_regs32[GDB_CS] = regs->cs; gdb_regs32[GDB_SS] = regs->ss; - gdb_regs[GDB_SP] = regs->sp; #endif + gdb_regs[GDB_SP] = kernel_stack_pointer(regs); } /** diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c index 3fe86d7..1f3186c 100644 --- a/arch/x86/kernel/kprobes.c +++ b/arch/x86/kernel/kprobes.c @@ -63,19 +63,7 @@ void jprobe_return_end(void); DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL; DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk); -#ifdef CONFIG_X86_64 -#define stack_addr(regs) ((unsigned long *)regs->sp) -#else -/* - * "®s->sp" looks wrong, but it's correct for x86_32. x86_32 CPUs - * don't save the ss and esp registers if the CPU is already in kernel - * mode when it traps. So for kprobes, regs->sp and regs->ss are not - * the [nonexistent] saved stack pointer and ss register, but rather - * the top 8 bytes of the pre-int3 stack. So ®s->sp happens to - * point to the top of the pre-int3 stack. - */ -#define stack_addr(regs) ((unsigned long *)®s->sp) -#endif +#define stack_addr(regs) ((unsigned long *)kernel_stack_pointer(regs)) #define W(row, b0, b1, b2, b3, b4, b5, b6, b7, b8, b9, ba, bb, bc, bd, be, bf)\ (((b0##UL << 0x0)|(b1##UL << 0x1)|(b2##UL << 0x2)|(b3##UL << 0x3) | \ diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c index 378e9a8..2bcad39 100644 --- a/arch/x86/kernel/microcode_core.c +++ b/arch/x86/kernel/microcode_core.c @@ -73,7 +73,6 @@ #include <linux/platform_device.h> #include <linux/miscdevice.h> #include <linux/capability.h> -#include <linux/smp_lock.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/mutex.h> @@ -201,7 +200,6 @@ static int do_microcode_update(const void __user *buf, size_t size) static int microcode_open(struct inode *unused1, struct file *unused2) { - cycle_kernel_lock(); return capable(CAP_SYS_RAWIO) ? 0 : -EPERM; } diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index d5bd313..5401402 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -135,7 +135,7 @@ void __show_regs(struct pt_regs *regs, int all) ss = regs->ss & 0xffff; gs = get_user_gs(regs); } else { - sp = (unsigned long) (®s->sp); + sp = kernel_stack_pointer(regs); savesegment(ss, ss); savesegment(gs, gs); } diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index c0ca8f9..82e88cd 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -248,7 +248,7 @@ EXPORT_SYMBOL(edd); * from boot_params into a safe place. * */ -static inline void copy_edd(void) +static inline void __init copy_edd(void) { memcpy(edd.mbr_signature, boot_params.edd_mbr_sig_buffer, sizeof(edd.mbr_signature)); @@ -257,7 +257,7 @@ static inline void copy_edd(void) edd.edd_info_nr = boot_params.eddbuf_entries; } #else -static inline void copy_edd(void) +static inline void __init copy_edd(void) { } #endif diff --git a/arch/x86/kernel/visws_quirks.c b/arch/x86/kernel/visws_quirks.c index cff70c8..abda6f5 100644 --- a/arch/x86/kernel/visws_quirks.c +++ b/arch/x86/kernel/visws_quirks.c @@ -486,7 +486,7 @@ static void end_cobalt_irq(unsigned int irq) } static struct irq_chip cobalt_irq_type = { - .typename = "Cobalt-APIC", + .name = "Cobalt-APIC", .startup = startup_cobalt_irq, .shutdown = disable_cobalt_irq, .enable = enable_cobalt_irq, @@ -523,7 +523,7 @@ static void end_piix4_master_irq(unsigned int irq) } static struct irq_chip piix4_master_irq_type = { - .typename = "PIIX4-master", + .name = "PIIX4-master", .startup = startup_piix4_master_irq, .ack = ack_cobalt_irq, .end = end_piix4_master_irq, @@ -531,7 +531,7 @@ static struct irq_chip piix4_master_irq_type = { static struct irq_chip piix4_virtual_irq_type = { - .typename = "PIIX4-virtual", + .name = "PIIX4-virtual", .shutdown = disable_8259A_irq, .enable = enable_8259A_irq, .disable = disable_8259A_irq, |