linux-kernel - [PATCH 10/10] mm/memcg: per-memcg per-zone lru locking

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Message-ID: <alpine.LSU.2.00.1202201538070.23274@eggly.anvils>
Date:	Mon, 20 Feb 2012 15:39:01 -0800 (PST)
From:	Hugh Dickins <hughd@...gle.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
cc:	Konstantin Khlebnikov <khlebnikov@...nvz.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Ying Han <yinghan@...gle.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 10/10] mm/memcg: per-memcg per-zone lru locking

Flip the switch from per-zone lru locking to per-memcg per-zone lru locking.

Signed-off-by: Hugh Dickins <hughd@...gle.com>
---
 include/linux/swap.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- mmotm.orig/include/linux/swap.h	2012-02-18 11:58:09.047525220 -0800
+++ mmotm/include/linux/swap.h	2012-02-18 11:58:15.659525376 -0800
@@ -252,8 +252,8 @@ static inline void lru_cache_add_file(st
 
 static inline spinlock_t *lru_lockptr(struct lruvec *lruvec)
 {
-	/* Still use per-zone lru_lock */
-	return &lruvec->zone->lruvec.lru_lock;
+	/* Now use per-memcg-per-zone lru_lock */
+	return &lruvec->lru_lock;
 }
 
 static inline void lock_lruvec(struct lruvec *lruvec)
--
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