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.
Fixes: 9113eaf331bf ("mm/memory-failure.c: add hwpoison_filter for soft offline")
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Acked-by: Naoya Horiguchi <naoya.horiguchi@xxxxxxx>
---
mm/memory-failure.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index ecd42d717c6f..1d79e693f1b9 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -2575,8 +2575,6 @@ int soft_offline_page(unsigned long pfn, int flags)
if (hwpoison_filter(page)) {
if (ret > 0)
put_page(page);
- else
- put_ref_page(ref_page);
mutex_unlock(&mf_mutex);
return -EOPNOTSUPP;
--
2.23.0
