diff options
Diffstat (limited to 'arch/um')
| -rw-r--r-- | arch/um/Kconfig.common | 1 | ||||
| -rw-r--r-- | arch/um/Makefile | 4 | ||||
| -rw-r--r-- | arch/um/drivers/ubd_kern.c | 7 | ||||
| -rw-r--r-- | arch/um/include/asm/tlb.h | 20 | ||||
| -rw-r--r-- | arch/um/kernel/skas/syscall.c | 9 | ||||
| -rw-r--r-- | arch/um/kernel/trap.c | 2 |
6 files changed, 31 insertions, 12 deletions
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common index f8530d8..fd44385 100644 --- a/arch/um/Kconfig.common +++ b/arch/um/Kconfig.common @@ -11,6 +11,7 @@ config UML select GENERIC_CPU_DEVICES select GENERIC_IO select GENERIC_CLOCKEVENTS + select HAVE_GCC_PLUGINS select TTY # Needed for line.c config MMU diff --git a/arch/um/Makefile b/arch/um/Makefile index e3abe6f..0ca46ede 100644 --- a/arch/um/Makefile +++ b/arch/um/Makefile @@ -78,8 +78,8 @@ include $(ARCH_DIR)/Makefile-os-$(OS) KBUILD_CPPFLAGS += -I$(srctree)/$(HOST_DIR)/include \ -I$(srctree)/$(HOST_DIR)/include/uapi \ - -I$(HOST_DIR)/include/generated \ - -I$(HOST_DIR)/include/generated/uapi + -I$(objtree)/$(HOST_DIR)/include/generated \ + -I$(objtree)/$(HOST_DIR)/include/generated/uapi # -Derrno=kernel_errno - This turns all kernel references to errno into # kernel_errno to separate them from the libc errno. This allows -fno-common diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index 17e96dc..f354027 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -801,6 +801,7 @@ static void ubd_device_release(struct device *dev) static int ubd_disk_register(int major, u64 size, int unit, struct gendisk **disk_out) { + struct device *parent = NULL; struct gendisk *disk; disk = alloc_disk(1 << UBD_SHIFT); @@ -823,12 +824,12 @@ static int ubd_disk_register(int major, u64 size, int unit, ubd_devs[unit].pdev.dev.release = ubd_device_release; dev_set_drvdata(&ubd_devs[unit].pdev.dev, &ubd_devs[unit]); platform_device_register(&ubd_devs[unit].pdev); - disk->driverfs_dev = &ubd_devs[unit].pdev.dev; + parent = &ubd_devs[unit].pdev.dev; } disk->private_data = &ubd_devs[unit]; disk->queue = ubd_devs[unit].queue; - add_disk(disk); + device_add_disk(parent, disk); *disk_out = disk; return 0; @@ -1286,7 +1287,7 @@ static void do_ubd_request(struct request_queue *q) req = dev->request; - if (req->cmd_flags & REQ_FLUSH) { + if (req_op(req) == REQ_OP_FLUSH) { io_req = kmalloc(sizeof(struct io_thread_req), GFP_ATOMIC); if (io_req == NULL) { diff --git a/arch/um/include/asm/tlb.h b/arch/um/include/asm/tlb.h index 16eb63f..821ff0a 100644 --- a/arch/um/include/asm/tlb.h +++ b/arch/um/include/asm/tlb.h @@ -102,7 +102,7 @@ static inline int __tlb_remove_page(struct mmu_gather *tlb, struct page *page) { tlb->need_flush = 1; free_page_and_swap_cache(page); - return 1; /* avoid calling tlb_flush_mmu */ + return false; /* avoid calling tlb_flush_mmu */ } static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) @@ -110,6 +110,24 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) __tlb_remove_page(tlb, page); } +static inline bool __tlb_remove_page_size(struct mmu_gather *tlb, + struct page *page, int page_size) +{ + return __tlb_remove_page(tlb, page); +} + +static inline bool __tlb_remove_pte_page(struct mmu_gather *tlb, + struct page *page) +{ + return __tlb_remove_page(tlb, page); +} + +static inline void tlb_remove_page_size(struct mmu_gather *tlb, + struct page *page, int page_size) +{ + return tlb_remove_page(tlb, page); +} + /** * tlb_remove_tlb_entry - remember a pte unmapping for later tlb invalidation. * diff --git a/arch/um/kernel/skas/syscall.c b/arch/um/kernel/skas/syscall.c index 48b0dcb..ef4b8f9 100644 --- a/arch/um/kernel/skas/syscall.c +++ b/arch/um/kernel/skas/syscall.c @@ -20,12 +20,12 @@ void handle_syscall(struct uml_pt_regs *r) UPT_SYSCALL_NR(r) = PT_SYSCALL_NR(r->gp); PT_REGS_SET_SYSCALL_RETURN(regs, -ENOSYS); - /* Do the secure computing check first; failures should be fast. */ - if (secure_computing() == -1) + if (syscall_trace_enter(regs)) return; - if (syscall_trace_enter(regs)) - goto out; + /* Do the seccomp check after ptrace; failures should be fast. */ + if (secure_computing(NULL) == -1) + return; /* Update the syscall number after orig_ax has potentially been updated * with ptrace. @@ -37,6 +37,5 @@ void handle_syscall(struct uml_pt_regs *r) PT_REGS_SET_SYSCALL_RETURN(regs, EXECUTE_SYSCALL(syscall, regs)); -out: syscall_trace_leave(regs); } diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c index 98783dd..ad8f206 100644 --- a/arch/um/kernel/trap.c +++ b/arch/um/kernel/trap.c @@ -73,7 +73,7 @@ good_area: do { int fault; - fault = handle_mm_fault(mm, vma, address, flags); + fault = handle_mm_fault(vma, address, flags); if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) goto out_nosemaphore; |
