mm/memory-failure.c: rework the try_to_unmap logic in hwpoison_user_mappings()

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Only for hugetlb pages in shared mappings, try_to_unmap should take
semaphore in write mode here.  Rework the code to make it clear.

Link: https://lkml.kernel.org/r/20220218090118.1105-7-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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Miaohe Lin 2022-03-22 14:44:27 -07:00 • committed by Linus Torvalds

parent 67ff51c6a6

commit 357670f79e

1 changed files with 15 additions and 19 deletions

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mm/memory-failure.c

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