linux-kernel - [PATCH] mm/vmscan.c: 'lru' may be used without initialized after the patch "3abf380..." in next-20130607 tree

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Date:	Wed, 19 Jun 2013 14:55:13 +0800
From:	Chen Gang <gang.chen@...anux.com>
To:	Mel Gorman <mgorman@...e.de>, hannes@...xchg.org, riel@...hat.com,
	mhocko@...e.cz
CC:	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] mm/vmscan.c: 'lru' may be used without initialized after
 the patch "3abf380..." in next-20130607 tree


'lru' may be used without initialized, so need regressing part of the
related patch.

The related patch:
  "3abf380 mm: remove lru parameter from __lru_cache_add and lru_cache_add_lru"


Signed-off-by: Chen Gang <gang.chen@...anux.com>
---
 mm/vmscan.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index fe73724..e92b1858 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -595,6 +595,7 @@ redo:
 		 * unevictable page on [in]active list.
 		 * We know how to handle that.
 		 */
+		lru = !!TestClearPageActive(page) + page_lru_base_type(page);
 		lru_cache_add(page);
 	} else {
 		/*
-- 
1.7.7.6
--
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