Messages in this thread Patch in this message | | | From | Miaohe Lin <> | Subject | [PATCH] mm/mlock: Use vma_lookup() instead of find_vma() | Date | Mon, 14 Mar 2022 23:17:28 +0800 |
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Using vma_lookup() verifies the start is contained in the found vma. This results in easier to read the code.
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> --- mm/mlock.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/mlock.c b/mm/mlock.c index efd2dd2943de..fefa9644d0f9 100644 --- a/mm/mlock.c +++ b/mm/mlock.c @@ -453,8 +453,8 @@ static int apply_vma_lock_flags(unsigned long start, size_t len, return -EINVAL; if (end == start) return 0; - vma = find_vma(current->mm, start); - if (!vma || vma->vm_start > start) + vma = vma_lookup(current->mm, start); + if (!vma) return -ENOMEM; prev = vma->vm_prev; -- 2.23.0
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