Commit 80ee7cb2 authored by Miaohe Lin's avatar Miaohe Lin Committed by Andrew Morton
Browse files

mm: memory-failure: don't account hwpoison_filter() filtered pages 

mf_generic_kill_procs() will return -EOPNOTSUPP when hwpoison_filter()
filtered dax page.  In that case, action_result() isn't expected to be
called to update mf_stats.  This will results in inaccurate but benign
memory failure handling statistics.

Link: https://lkml.kernel.org/r/20230711055016.2286677-4-linmiaohe@huawei.com


Signed-off-by: default avatarMiaohe Lin <linmiaohe@huawei.com>
Acked-by: default avatarNaoya Horiguchi <naoya.horiguchi@nec.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 92a025a7

mm/memory-failure.c

+2 −1
Original line number Diff line number Diff line
@@ -2098,6 +2098,7 @@ static int memory_failure_dev_pagemap(unsigned long pfn, int flags, 
out:

	/* drop pgmap ref acquired in caller */

	put_dev_pagemap(pgmap);

	if (rc != -EOPNOTSUPP)

		action_result(pfn, MF_MSG_DAX, rc ? MF_FAILED : MF_RECOVERED);

	return rc;

}