Common11 [08/20] Move freeing of kmem_cache structure to common code

[Christoph Lameter <cl@linux.com>]

[-- Attachment #1: common_kmem_cache_destroy --]
[-- Type: text/plain, Size: 2565 bytes --]

The freeing action is basically the same in all slab allocators.
Move to the common kmem_cache_destroy() function.

Reviewed-by: Joonsoo Kim <js1304@gmail.com>
Signed-off-by: Christoph Lameter <cl@linux.com>

---
 mm/slab.c        |    1 -
 mm/slab_common.c |    1 +
 mm/slob.c        |    2 --
 mm/slub.c        |    1 -
 4 files changed, 1 insertion(+), 4 deletions(-)

Index: linux-2.6/mm/slab_common.c
===================================================================
--- linux-2.6.orig/mm/slab_common.c	2012-08-03 09:02:43.432389623 -0500
+++ linux-2.6/mm/slab_common.c	2012-08-03 09:02:44.064400579 -0500
@@ -144,6 +144,7 @@ void kmem_cache_destroy(struct kmem_cach
 				rcu_barrier();
 
 			__kmem_cache_destroy(s);
+			kmem_cache_free(kmem_cache, s);
 		} else {
 			list_add(&s->list, &slab_caches);
 			printk(KERN_ERR "kmem_cache_destroy %s: Slab cache still has objects\n",
Index: linux-2.6/mm/slob.c
===================================================================
--- linux-2.6.orig/mm/slob.c	2012-08-03 09:02:43.436389695 -0500
+++ linux-2.6/mm/slob.c	2012-08-03 09:02:44.064400579 -0500
@@ -540,8 +540,6 @@ struct kmem_cache *__kmem_cache_create(c
 
 void __kmem_cache_destroy(struct kmem_cache *c)
 {
-	kmemleak_free(c);
-	slob_free(c, sizeof(struct kmem_cache));
 }
 
 void *kmem_cache_alloc_node(struct kmem_cache *c, gfp_t flags, int node)
Index: linux-2.6/mm/slab.c
===================================================================
--- linux-2.6.orig/mm/slab.c	2012-08-03 09:02:43.432389623 -0500
+++ linux-2.6/mm/slab.c	2012-08-03 09:02:44.064400579 -0500
@@ -2222,7 +2222,6 @@ void __kmem_cache_destroy(struct kmem_ca
 			kfree(l3);
 		}
 	}
-	kmem_cache_free(kmem_cache, cachep);
 }
 
 
Index: linux-2.6/mm/slub.c
===================================================================
--- linux-2.6.orig/mm/slub.c	2012-08-03 09:02:43.436389695 -0500
+++ linux-2.6/mm/slub.c	2012-08-03 09:02:44.064400579 -0500
@@ -213,7 +213,6 @@ static inline int sysfs_slab_alias(struc
 static inline void sysfs_slab_remove(struct kmem_cache *s)
 {
 	kfree(s->name);
-	kmem_cache_free(kmem_cache, s);
 }
 
 #endif
@@ -5199,7 +5198,6 @@ static void kmem_cache_release(struct ko
 	struct kmem_cache *s = to_slab(kobj);
 
 	kfree(s->name);
-	kmem_cache_free(kmem_cache, s);
 }
 
 static const struct sysfs_ops slab_sysfs_ops = {

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