linux-kernel - [PATCH 1/6] mm, hwpoison: use ClearPageHWPoison() in memory

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Message-ID: <20220830123604.25763-2-linmiaohe@huawei.com>
Date:   Tue, 30 Aug 2022 20:35:59 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     <akpm@...ux-foundation.org>, <naoya.horiguchi@....com>
CC:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <linmiaohe@...wei.com>
Subject: [PATCH 1/6] mm, hwpoison: use ClearPageHWPoison() in memory_failure()

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

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
---
 mm/memory-failure.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index ebf16d177ee5..a923a6dde871 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -2128,7 +2128,7 @@ int memory_failure(unsigned long pfn, int flags)
 	page_flags = p->flags;
 
 	if (hwpoison_filter(p)) {
-		TestClearPageHWPoison(p);
+		ClearPageHWPoison(p);
 		unlock_page(p);
 		put_page(p);
 		res = -EOPNOTSUPP;
-- 
2.23.0