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mm, hwpoison: use ClearPageHWPoison() in memory_failure() 

Patch series "A few cleanup patches for memory-failure".

his series contains a few cleanup patches to use __PageMovable() to detect
non-lru movable pages, use num_poisoned_pages_sub() to reduce multiple
atomic ops overheads and so on.  More details can be found in the
respective changelogs.


This patch (of 6):

Use ClearPageHWPoison() instead of TestClearPageHWPoison() to clear page
hwpoison flags to avoid unneeded full memory barrier overhead.

Link: https://lkml.kernel.org/r/20220830123604.25763-1-linmiaohe@huawei.com
Link: https://lkml.kernel.org/r/20220830123604.25763-2-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>
This commit is contained in:
Miaohe Lin 2022-08-30 20:35:59 +08:00 committed by Andrew Morton
parent 4d24de9425
commit 2fe62e2226
1 changed files with 1 additions and 1 deletions
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2
mm/memory-failure.c
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@ -2131,7 +2131,7 @@ try_again:
page_flags = p->flags;
if (hwpoison_filter(p)) {
TestClearPageHWPoison(p);
ClearPageHWPoison(p);
unlock_page(p);
put_page(p);
res = -EOPNOTSUPP;