linux-kernel - [PATCH] slub: don't use cpu partial pages on UP

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Message-Id: <1374072899-23900-1-git-send-email-u.kleine-koenig@pengutronix.de>
Date:	Wed, 17 Jul 2013 16:54:59 +0200
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	Christoph Lameter <cl@...ux.com>
Cc:	Pekka Enberg <penberg@...nel.org>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	linux-kernel@...r.kernel.org, kernel@...gutronix.de,
	Steven Rostedt <srostedt@...hat.com>
Subject: [PATCH] slub: don't use cpu partial pages on UP

cpu partial pages are used to avoid contention which does not exist in
the UP case. So let SLUB_CPU_PARTIAL depend on SMP.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
---
 init/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/init/Kconfig b/init/Kconfig
index 247084b..63c67de 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1598,7 +1598,7 @@ endchoice
 
 config SLUB_CPU_PARTIAL
 	default y
-	depends on SLUB
+	depends on SLUB && SMP
 	bool "SLUB per cpu partial cache"
 	help
 	  Per cpu partial caches accellerate objects allocation and freeing
-- 
1.8.3.2

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