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authorChristoph Lameter <cl@linux.com>2012-07-06 15:25:10 -0500
committerPekka Enberg <penberg@kernel.org>2012-07-09 12:13:30 +0300
commit039363f38bfe5f6281e9eae5e0518b11577d9d50 (patch)
tree11aa16feccb68b035aa9e9f390a54e57fa2ffd83 /mm/slub.c
parent068ce415bea9e2b96bde76dc1bf6e672a89903ee (diff)
downloadlinux-039363f38bfe5f6281e9eae5e0518b11577d9d50.tar.bz2
mm, sl[aou]b: Extract common code for kmem_cache_create()
Kmem_cache_create() does a variety of sanity checks but those vary depending on the allocator. Use the strictest tests and put them into a slab_common file. Make the tests conditional on CONFIG_DEBUG_VM. This patch has the effect of adding sanity checks for SLUB and SLOB under CONFIG_DEBUG_VM and removes the checks in SLAB for !CONFIG_DEBUG_VM. Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'mm/slub.c')
-rw-r--r--mm/slub.c11
1 files changed, 1 insertions, 10 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 79fe9c6b93cf..6551cc9a51f8 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3920,15 +3920,12 @@ static struct kmem_cache *find_mergeable(size_t size,
return NULL;
}
-struct kmem_cache *kmem_cache_create(const char *name, size_t size,
+struct kmem_cache *__kmem_cache_create(const char *name, size_t size,
size_t align, unsigned long flags, void (*ctor)(void *))
{
struct kmem_cache *s;
char *n;
- if (WARN_ON(!name))
- return NULL;
-
down_write(&slub_lock);
s = find_mergeable(size, align, flags, name, ctor);
if (s) {
@@ -3972,14 +3969,8 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size,
kfree(n);
err:
up_write(&slub_lock);
-
- if (flags & SLAB_PANIC)
- panic("Cannot create slabcache %s\n", name);
- else
- s = NULL;
return s;
}
-EXPORT_SYMBOL(kmem_cache_create);
#ifdef CONFIG_SMP
/*