linux-kernel - [PATCH v3 8/8] mm/memory-failure.c: remove unnecessary PageTransTail check

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Message-ID: <20220218090118.1105-9-linmiaohe@huawei.com>
Date:   Fri, 18 Feb 2022 17:01:18 +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 v3 8/8] mm/memory-failure.c: remove unnecessary PageTransTail check

When we reach here, we're guaranteed to have non-compound page as thp is
already splited. Remove this unnecessary PageTransTail check.

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
Acked-by: Naoya Horiguchi <naoya.horiguchi@....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 6bd555f12972..accd1c5d7fa0 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1848,7 +1848,7 @@ int memory_failure(unsigned long pfn, int flags)
 	 * page_lock. We need wait writeback completion for this page or it
 	 * may trigger vfs BUG while evict inode.
 	 */
-	if (!PageTransTail(p) && !PageLRU(p) && !PageWriteback(p))
+	if (!PageLRU(p) && !PageWriteback(p))
 		goto identify_page_state;
 
 	/*
-- 
2.23.0