linux-kernel - [PATCH 1/4] mempolicy: change alloc_pages_vma() to use mpol_cond

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Date:	Wed, 20 Aug 2014 21:22:47 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	David Rientjes <rientjes@...gle.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	Alexander Viro <viro@...iv.linux.org.uk>,
	Cyrill Gorcunov <gorcunov@...nvz.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Hugh Dickins <hughd@...gle.com>, linux-kernel@...r.kernel.org
Subject: [PATCH 1/4] mempolicy: change alloc_pages_vma() to use
	mpol_cond_put()

Trivial cleanup. alloc_pages_vma() can use mpol_cond_put().

Signed-off-by: Oleg Nesterov <oleg@...hat.com>
---
 mm/mempolicy.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 8f5330d..c0c5d38 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2046,8 +2046,7 @@ retry_cpuset:
 	page = __alloc_pages_nodemask(gfp, order,
 				      policy_zonelist(gfp, pol, node),
 				      policy_nodemask(gfp, pol));
-	if (unlikely(mpol_needs_cond_ref(pol)))
-		__mpol_put(pol);
+	mpol_cond_put(pol);
 	if (unlikely(!page && read_mems_allowed_retry(cpuset_mems_cookie)))
 		goto retry_cpuset;
 	return page;
-- 
1.5.5.1


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