linux-kernel - [PATCH] SLUB Use cmpxchg() everywhere

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Date:	Tue, 21 Aug 2007 13:38:30 -0400
From:	Mathieu Desnoyers <compudj@...stal.dyndns.org>
To:	Christoph Lameter <clameter@....com>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	mingo@...hat.com
Subject: [PATCH] SLUB Use cmpxchg() everywhere

SLUB Use cmpxchg() everywhere.

It applies to "SLUB: Single atomic instruction alloc/free using
cmpxchg".

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
---
 mm/slub.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: slab/mm/slub.c
===================================================================
--- slab.orig/mm/slub.c	2007-08-20 18:42:16.000000000 -0400
+++ slab/mm/slub.c	2007-08-20 18:42:28.000000000 -0400
@@ -1682,7 +1682,7 @@ redo:
 
 	object[c->offset] = freelist;
 
-	if (unlikely(cmpxchg_local(&c->freelist, freelist, object) != freelist))
+	if (unlikely(cmpxchg(&c->freelist, freelist, object) != freelist))
 		goto redo;
 	return;
 slow:
-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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