linux-kernel - [PATCH -mmotm 12/30] selinux: tag avc cache alloc as non-critical

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Message-Id: <20100713101906.2835.83443.sendpatchset@danny.redhat>
Date:	Tue, 13 Jul 2010 06:19:06 -0400
From:	Xiaotian Feng <dfeng@...hat.com>
To:	linux-mm@...ck.org, linux-nfs@...r.kernel.org,
	netdev@...r.kernel.org
Cc:	riel@...hat.com, cl@...ux-foundation.org, a.p.zijlstra@...llo.nl,
	Xiaotian Feng <dfeng@...hat.com>, linux-kernel@...r.kernel.org,
	lwang@...hat.com, penberg@...helsinki.fi,
	akpm@...ux-foundation.org, davem@...emloft.net
Subject: [PATCH -mmotm 12/30] selinux: tag avc cache alloc as non-critical

>From 6c3a91091b2910c23908a9f9953efcf3df14e522 Mon Sep 17 00:00:00 2001
From: Xiaotian Feng <dfeng@...hat.com>
Date: Tue, 13 Jul 2010 11:02:41 +0800
Subject: [PATCH 12/30] selinux: tag avc cache alloc as non-critical

Failing to allocate a cache entry will only harm performance not correctness.
Do not consume valuable reserve pages for something like that.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Signed-off-by: Suresh Jayaraman <sjayaraman@...e.de>
Signed-off-by: Xiaotian Feng <dfeng@...hat.com>
---
 security/selinux/avc.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index 3662b0f..9029395 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -284,7 +284,7 @@ static struct avc_node *avc_alloc_node(void)
 {
 	struct avc_node *node;
 
-	node = kmem_cache_zalloc(avc_node_cachep, GFP_ATOMIC);
+	node = kmem_cache_zalloc(avc_node_cachep, GFP_ATOMIC|__GFP_NOMEMALLOC);
 	if (!node)
 		goto out;
 
-- 
1.7.1.1

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