mm/madvise: use vma_lookup() instead of find_vma()
Using vma_lookup() verifies the start address is contained in the found vma. This results in easier to read the code. Link: https://lkml.kernel.org/r/20220311082731.63513-1-linmiaohe@huawei.comSigned-off-by: NMiaohe Lin <linmiaohe@huawei.com> Reviewed-by: NDavid Hildenbrand <david@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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