linux-kernel - [PATCH 14/17] mm: Do not use atomic operations when releasing pages

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Date:	Thu,  1 May 2014 09:44:45 +0100
From:	Mel Gorman <mgorman@...e.de>
To:	Linux-MM <linux-mm@...ck.org>,
	Linux-FSDevel <linux-fsdevel@...r.kernel.org>
Cc:	Johannes Weiner <hannes@...xchg.org>,
	Vlastimil Babka <vbabka@...e.cz>, Jan Kara <jack@...e.cz>,
	Michal Hocko <mhocko@...e.cz>, Hugh Dickins <hughd@...gle.com>,
	Mel Gorman <mgorman@...e.de>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH 14/17] mm: Do not use atomic operations when releasing pages

There should be no references to it any more and a parallel mark should
not be reordered against us. Use non-locked varient to clear page active.

Signed-off-by: Mel Gorman <mgorman@...e.de>
---
 mm/swap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/swap.c b/mm/swap.c
index f2228b7..7a5bdd7 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -854,7 +854,7 @@ void release_pages(struct page **pages, int nr, bool cold)
 		}
 
 		/* Clear Active bit in case of parallel mark_page_accessed */
-		ClearPageActive(page);
+		__ClearPageActive(page);
 
 		list_add(&page->lru, &pages_to_free);
 	}
-- 
1.8.4.5

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