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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-18 04:16:47 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-18 04:16:47 (GMT) |
| commit | a8f155855842f04273666192d3767fa9b94aaa58 (patch) | |
| tree | 396180e8db3ac132195feca3f531defaf7d6d3ff /mm | |
| parent | 8e64a7331702b7888ccf84b2b9ff46ab8e167c7f (diff) | |
| parent | 28c553d0aa0acf02e18f9e008661491a4b996595 (diff) | |
| download | linux-a8f155855842f04273666192d3767fa9b94aaa58.tar.xz | |
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from ANdrew Morton:
"8 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
revert "mm: make sure all file VMAs have ->vm_ops set"
MAINTAINERS: update LTP mailing list
userfaultfd: add missing mmput() in error path
lib/string_helpers.c: fix infinite loop in string_get_size()
alpha: lib: export __delay
alpha: io: define ioremap_uc
kasan: fix last shadow judgement in memory_is_poisoned_16()
zram: fix possible use after free in zcomp_create()
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/kasan/kasan.c | 3 | ||||
| -rw-r--r-- | mm/mmap.c | 8 |
2 files changed, 1 insertions, 10 deletions
diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c index 7b28e9c..8da2114 100644 --- a/mm/kasan/kasan.c +++ b/mm/kasan/kasan.c @@ -135,12 +135,11 @@ static __always_inline bool memory_is_poisoned_16(unsigned long addr) if (unlikely(*shadow_addr)) { u16 shadow_first_bytes = *(u16 *)shadow_addr; - s8 last_byte = (addr + 15) & KASAN_SHADOW_MASK; if (unlikely(shadow_first_bytes)) return true; - if (likely(!last_byte)) + if (likely(IS_ALIGNED(addr, 8))) return false; return memory_is_poisoned_1(addr + 15); @@ -612,8 +612,6 @@ static unsigned long count_vma_pages_range(struct mm_struct *mm, void __vma_link_rb(struct mm_struct *mm, struct vm_area_struct *vma, struct rb_node **rb_link, struct rb_node *rb_parent) { - WARN_ONCE(vma->vm_file && !vma->vm_ops, "missing vma->vm_ops"); - /* Update tracking information for the gap following the new vma. */ if (vma->vm_next) vma_gap_update(vma->vm_next); @@ -1638,12 +1636,6 @@ unsigned long mmap_region(struct file *file, unsigned long addr, */ WARN_ON_ONCE(addr != vma->vm_start); - /* All file mapping must have ->vm_ops set */ - if (!vma->vm_ops) { - static const struct vm_operations_struct dummy_ops = {}; - vma->vm_ops = &dummy_ops; - } - addr = vma->vm_start; vm_flags = vma->vm_flags; } else if (vm_flags & VM_SHARED) { |