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| author | Miaohe Lin <linmiaohe@huawei.com> | 2022-03-22 22:42:41 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-22 23:57:05 +0100 |
| commit | 0e6799db9672dcdc995b0f4bfa5cde4420868c93 (patch) | |
| tree | be4e04f5269f4ba0ac104464f6ce9db376a0f0ed /mm/mremap.c | |
| parent | mm/mmap: remove obsolete comment in ksys_mmap_pgoff (diff) | |
| download | linux-0e6799db9672dcdc995b0f4bfa5cde4420868c93.tar.xz linux-0e6799db9672dcdc995b0f4bfa5cde4420868c93.zip | |
mm/mremap:: use vma_lookup() instead of find_vma()
Using vma_lookup() verifies the address is contained in the found vma.
This results in easier to read code.
Link: https://lkml.kernel.org/r/20220312083118.48284-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | mm/mremap.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/mremap.c b/mm/mremap.c index 002eec83e91e..9d76da79594d 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -942,8 +942,8 @@ SYSCALL_DEFINE5(mremap, unsigned long, addr, unsigned long, old_len, if (mmap_write_lock_killable(current->mm)) return -EINTR; - vma = find_vma(mm, addr); - if (!vma || vma->vm_start > addr) { + vma = vma_lookup(mm, addr); + if (!vma) { ret = EFAULT; goto out; } |