linux-kernel - [PATCH v3 9/9] slab: remove BAD_ALIEN

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Date:	Tue,  1 Jul 2014 17:27:38 +0900
From:	Joonsoo Kim <iamjoonsoo.kim@....com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Christoph Lameter <cl@...ux.com>,
	Pekka Enberg <penberg@...nel.org>,
	David Rientjes <rientjes@...gle.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Vladimir Davydov <vdavydov@...allels.com>,
	Joonsoo Kim <iamjoonsoo.kim@....com>
Subject: [PATCH v3 9/9] slab: remove BAD_ALIEN_MAGIC

BAD_ALIEN_MAGIC value isn't used anymore. So remove it.

Acked-by: Christoph Lameter <cl@...ux.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@....com>
---
 mm/slab.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 7820a45..60c9e11 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -470,8 +470,6 @@ static struct kmem_cache kmem_cache_boot = {
 	.name = "kmem_cache",
 };
 
-#define BAD_ALIEN_MAGIC 0x01020304ul
-
 static DEFINE_PER_CPU(struct delayed_work, slab_reap_work);
 
 static inline struct array_cache *cpu_cache_get(struct kmem_cache *cachep)
@@ -838,7 +836,7 @@ static int transfer_objects(struct array_cache *to,
 static inline struct alien_cache **alloc_alien_cache(int node,
 						int limit, gfp_t gfp)
 {
-	return (struct alien_cache **)BAD_ALIEN_MAGIC;
+	return NULL;
 }
 
 static inline void free_alien_cache(struct alien_cache **ac_ptr)
-- 
1.7.9.5

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