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

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Date:   Thu, 10 Feb 2022 22:17:33 +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 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>
---
 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 3d0803a13703..3e404b06efdc 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1838,7 +1838,7 @@ 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