From 12f1dbcf8f144c0b8dde7a62fea766f88cb79fc8 Mon Sep 17 00:00:00 2001 From: Miaohe Lin Date: Thu, 18 Aug 2022 21:00:13 +0800 Subject: [PATCH] mm, hwpoison: fix extra put_page() in soft_offline_page() When hwpoison_filter() refuses to soft offline a page, the page refcnt incremented previously by MF_COUNT_INCREASED would have been consumed via get_hwpoison_page() if ret <= 0. So the put_ref_page() here will put the extra one. Remove it to fix the issue. Link: https://lkml.kernel.org/r/20220818130016.45313-4-linmiaohe@huawei.com Fixes: 9113eaf331bf ("mm/memory-failure.c: add hwpoison_filter for soft offline") Signed-off-by: Miaohe Lin Acked-by: Naoya Horiguchi Signed-off-by: Andrew Morton --- mm/memory-failure.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/mm/memory-failure.c b/mm/memory-failure.c index f391818c9eac9..799176d3f5f76 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -2591,8 +2591,6 @@ retry: if (hwpoison_filter(page)) { if (ret > 0) put_page(page); - else - put_ref_page(ref_page); mutex_unlock(&mf_mutex); return -EOPNOTSUPP; -- 2.30.2