From 80ee7cb271b52e5861eda3c67731c95fd55a2627 Mon Sep 17 00:00:00 2001 From: Miaohe Lin Date: Tue, 11 Jul 2023 13:50:11 +0800 Subject: 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: Miaohe Lin Acked-by: Naoya Horiguchi Signed-off-by: Andrew Morton --- mm/memory-failure.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'mm/memory-failure.c') diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 71b4bb691c47..cac5413c5cc3 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -2098,7 +2098,8 @@ static int memory_failure_dev_pagemap(unsigned long pfn, int flags, out: /* drop pgmap ref acquired in caller */ put_dev_pagemap(pgmap); - action_result(pfn, MF_MSG_DAX, rc ? MF_FAILED : MF_RECOVERED); + if (rc != -EOPNOTSUPP) + action_result(pfn, MF_MSG_DAX, rc ? MF_FAILED : MF_RECOVERED); return rc; } -- cgit v1.2.3