diff options
| -rw-r--r-- | arch/arm/kernel/process.c | 3 | ||||
| -rw-r--r-- | arch/arm64/kernel/vdso.c | 6 | ||||
| -rw-r--r-- | arch/hexagon/kernel/vdso.c | 3 | ||||
| -rw-r--r-- | arch/mips/kernel/vdso.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/kernel/vdso.c | 3 | ||||
| -rw-r--r-- | arch/s390/kernel/vdso.c | 3 | ||||
| -rw-r--r-- | arch/sh/kernel/vsyscall/vsyscall.c | 4 | ||||
| -rw-r--r-- | arch/x86/entry/vdso/vma.c | 3 | ||||
| -rw-r--r-- | arch/x86/um/vdso/vma.c | 3 |
9 files changed, 21 insertions, 10 deletions
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index a647d66..4a803c5 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -420,7 +420,8 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) npages = 1; /* for sigpage */ npages += vdso_total_pages; - down_write(&mm->mmap_sem); + if (down_write_killable(&mm->mmap_sem)) + return -EINTR; hint = sigpage_addr(mm, npages); addr = get_unmapped_area(NULL, hint, npages << PAGE_SHIFT, 0, 0); if (IS_ERR_VALUE(addr)) { diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c index 64fc030..9fefb00 100644 --- a/arch/arm64/kernel/vdso.c +++ b/arch/arm64/kernel/vdso.c @@ -95,7 +95,8 @@ int aarch32_setup_vectors_page(struct linux_binprm *bprm, int uses_interp) }; void *ret; - down_write(&mm->mmap_sem); + if (down_write_killable(&mm->mmap_sem)) + return -EINTR; current->mm->context.vdso = (void *)addr; /* Map vectors page at the high address. */ @@ -163,7 +164,8 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, /* Be sure to map the data page */ vdso_mapping_len = vdso_text_len + PAGE_SIZE; - down_write(&mm->mmap_sem); + if (down_write_killable(&mm->mmap_sem)) + return -EINTR; vdso_base = get_unmapped_area(NULL, 0, vdso_mapping_len, 0, 0); if (IS_ERR_VALUE(vdso_base)) { ret = ERR_PTR(vdso_base); diff --git a/arch/hexagon/kernel/vdso.c b/arch/hexagon/kernel/vdso.c index 0bf5a87..3ea96841 100644 --- a/arch/hexagon/kernel/vdso.c +++ b/arch/hexagon/kernel/vdso.c @@ -65,7 +65,8 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) unsigned long vdso_base; struct mm_struct *mm = current->mm; - down_write(&mm->mmap_sem); + if (down_write_killable(&mm->mmap_sem)) + return -EINTR; /* Try to get it loaded right near ld.so/glibc. */ vdso_base = STACK_TOP; diff --git a/arch/mips/kernel/vdso.c b/arch/mips/kernel/vdso.c index 975e997..54e1663 100644 --- a/arch/mips/kernel/vdso.c +++ b/arch/mips/kernel/vdso.c @@ -104,7 +104,8 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) struct resource gic_res; int ret; - down_write(&mm->mmap_sem); + if (down_write_killable(&mm->mmap_sem)) + return -EINTR; /* * Determine total area size. This includes the VDSO data itself, the diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c index def1b8b..6767605 100644 --- a/arch/powerpc/kernel/vdso.c +++ b/arch/powerpc/kernel/vdso.c @@ -195,7 +195,8 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) * and end up putting it elsewhere. * Add enough to the size so that the result can be aligned. */ - down_write(&mm->mmap_sem); + if (down_write_killable(&mm->mmap_sem)) + return -EINTR; vdso_base = get_unmapped_area(NULL, vdso_base, (vdso_pages << PAGE_SHIFT) + ((VDSO_ALIGNMENT - 1) & PAGE_MASK), diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c index 94495ca..5904abf 100644 --- a/arch/s390/kernel/vdso.c +++ b/arch/s390/kernel/vdso.c @@ -216,7 +216,8 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) * it at vdso_base which is the "natural" base for it, but we might * fail and end up putting it elsewhere. */ - down_write(&mm->mmap_sem); + if (down_write_killable(&mm->mmap_sem)) + return -EINTR; vdso_base = get_unmapped_area(NULL, 0, vdso_pages << PAGE_SHIFT, 0, 0); if (IS_ERR_VALUE(vdso_base)) { rc = vdso_base; diff --git a/arch/sh/kernel/vsyscall/vsyscall.c b/arch/sh/kernel/vsyscall/vsyscall.c index ea2aa13..cc0cc5b 100644 --- a/arch/sh/kernel/vsyscall/vsyscall.c +++ b/arch/sh/kernel/vsyscall/vsyscall.c @@ -64,7 +64,9 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) unsigned long addr; int ret; - down_write(&mm->mmap_sem); + if (down_write_killable(&mm->mmap_sem)) + return -EINTR; + addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0); if (IS_ERR_VALUE(addr)) { ret = addr; diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c index b3cf813..ab220ac 100644 --- a/arch/x86/entry/vdso/vma.c +++ b/arch/x86/entry/vdso/vma.c @@ -163,7 +163,8 @@ static int map_vdso(const struct vdso_image *image, bool calculate_addr) addr = 0; } - down_write(&mm->mmap_sem); + if (down_write_killable(&mm->mmap_sem)) + return -EINTR; addr = get_unmapped_area(NULL, addr, image->size - image->sym_vvar_start, 0, 0); diff --git a/arch/x86/um/vdso/vma.c b/arch/x86/um/vdso/vma.c index 237c683..6be22f9 100644 --- a/arch/x86/um/vdso/vma.c +++ b/arch/x86/um/vdso/vma.c @@ -61,7 +61,8 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) if (!vdso_enabled) return 0; - down_write(&mm->mmap_sem); + if (down_write_killable(&mm->mmap_sem)) + return -EINTR; err = install_special_mapping(mm, um_vdso_addr, PAGE_SIZE, VM_READ|VM_EXEC| |
