linux-kernel - [PATCH 1/4] slub: change cmpxchg_double_slab in get_freelist() to __cmpxchg_double

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Message-Id: <1337269668-4619-2-git-send-email-js1304@gmail.com>
Date:	Fri, 18 May 2012 00:47:45 +0900
From:	Joonsoo Kim <js1304@...il.com>
To:	Pekka Enberg <penberg@...nel.org>
Cc:	Christoph Lameter <cl@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Joonsoo Kim <js1304@...il.com>
Subject: [PATCH 1/4] slub: change cmpxchg_double_slab in get_freelist() to __cmpxchg_double_slab

get_freelist() is only called by __slab_alloc with interrupt disabled,
so __cmpxchg_double_slab is suitable.

Acked-by: David Rientjes <rientjes@...gle.com>
Signed-off-by: Joonsoo Kim <js1304@...il.com>

diff --git a/mm/slub.c b/mm/slub.c
index 0c3105c..d28bc45 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2179,7 +2179,7 @@ static inline void *get_freelist(struct kmem_cache *s, struct page *page)
 		new.inuse = page->objects;
 		new.frozen = freelist != NULL;
 
-	} while (!cmpxchg_double_slab(s, page,
+	} while (!__cmpxchg_double_slab(s, page,
 		freelist, counters,
 		NULL, new.counters,
 		"get_freelist"));
-- 
1.7.9.5

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