mm/slub: Use kmem_cache for the kmem_cache structure

Do not use kmalloc() but kmem_cache_alloc() for the allocation
of the kmem_cache structures in slub.

Reviewed-by: Glauber Costa <glommer@parallels.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>

diff --git a/mm/slub.c b/mm/slub.c
index 9905921..c669089 100644 (file)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -213,7 +213,7 @@ static inline int sysfs_slab_alias(struct kmem_cache *s, const char *p)
 static inline void sysfs_slab_remove(struct kmem_cache *s)
 {
        kfree(s->name);
-       kfree(s);
+       kmem_cache_free(kmem_cache, s);
 }
 
 #endif
@@ -3969,7 +3969,7 @@ struct kmem_cache *__kmem_cache_create(const char *name, size_t size,
        if (!n)
                return NULL;
 
-       s = kmalloc(kmem_size, GFP_KERNEL);
+       s = kmem_cache_alloc(kmem_cache, GFP_KERNEL);
        if (s) {
                if (kmem_cache_open(s, n,
                                size, align, flags, ctor)) {
@@ -3986,7 +3986,7 @@ struct kmem_cache *__kmem_cache_create(const char *name, size_t size,
                        list_del(&s->list);
                        kmem_cache_close(s);
                }
-               kfree(s);
+               kmem_cache_free(kmem_cache, s);
        }
        kfree(n);
        return NULL;
@@ -5224,7 +5224,7 @@ static void kmem_cache_release(struct kobject *kobj)
        struct kmem_cache *s = to_slab(kobj);
 
        kfree(s->name);
-       kfree(s);
+       kmem_cache_free(kmem_cache, s);
 }
 
 static const struct sysfs_ops slab_sysfs_ops = {