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FROMGIT: mm: for !CONFIG_PER_VMA_LOCK equate write lock assertion for vma and mmap

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When CONFIG_PER_VMA_LOCK=n, vma_assert_write_locked() should be equivalent
to mmap_assert_write_locked().

Link: https://lkml.kernel.org/r/20230804152724.3090321-3-surenb@google.com
Suggested-by: Jann Horn <jannh@google.com>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Linus Torvalds <torvalds@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

(cherry picked from commit f0cdd55d6dd8c7a1b333049e4f83eb25fef312ad
https: //git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable)

Bug: 293665307
Change-Id: Ie20ff6c35fb2f561f2061c5d0135238b7b03afa5
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
This commit is contained in:
Suren Baghdasaryan 2023-08-04 08:27:20 -07:00
parent abb0f2767e
commit 5f0ca924aa
1 changed files with 2 additions and 1 deletions
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3
include/linux/mm.h
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@ -750,7 +750,8 @@ static inline void vma_end_read(struct vm_area_struct *vma) {}
static inline void vma_start_write(struct vm_area_struct *vma) {}
static inline bool vma_try_start_write(struct vm_area_struct *vma)
{ return true; }
static inline void vma_assert_write_locked(struct vm_area_struct *vma) {}
static inline void vma_assert_write_locked(struct vm_area_struct *vma)
{ mmap_assert_write_locked(vma->vm_mm); }
static inline void vma_mark_detached(struct vm_area_struct *vma,
bool detached) {}