Signed-off-by: Vladimir Davydov <vdavy...@parallels.com>
Cc: Michal Hocko <mho...@suse.cz>
Cc: Johannes Weiner <han...@cmpxchg.org>
Cc: Glauber Costa <glom...@gmail.com>
Cc: Christoph Lameter <c...@linux.com>
Cc: Pekka Enberg <penb...@kernel.org>
Cc: Andrew Morton <a...@linux-foundation.org>
---
mm/slab_common.c | 66 +++++++++++++++++++++++++++---------------------------
1 file changed, 33 insertions(+), 33 deletions(-)
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 0b7bb39..5d6f743 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -176,8 +176,9 @@ kmem_cache_create_memcg(struct mem_cgroup *memcg, const
char *name, size_t size,
get_online_cpus();
mutex_lock(&slab_mutex);
- if (!kmem_cache_sanity_check(memcg, name, size) == 0)
- goto out_locked;
+ err = kmem_cache_sanity_check(memcg, name, size);
+ if (err)
+ goto out_unlock;
/*
* Some allocators will constraint the set of valid flags to a subset
@@ -189,45 +190,41 @@ kmem_cache_create_memcg(struct mem_cgroup *memcg, const
char *name, size_t size,
s = __kmem_cache_alias(memcg, name, size, align, flags, ctor);
if (s)
- goto out_locked;
+ goto out_unlock;
s = kmem_cache_zalloc(kmem_cache, GFP_KERNEL);
- if (s) {
- s->object_size = s->size = size;
- s->align = calculate_alignment(flags, align, size);
- s->ctor = ctor;
-
- if (memcg_register_cache(memcg, s, parent_cache)) {
- kmem_cache_free(kmem_cache, s);
- err = -ENOMEM;
- goto out_locked;
- }
+ if (!s) {
+ err = -ENOMEM;
+ goto out_unlock;
+ }
- s->name = kstrdup(name, GFP_KERNEL);
- if (!s->name) {
- kmem_cache_free(kmem_cache, s);
- err = -ENOMEM;
- goto out_locked;
- }
+ s->object_size = s->size = size;
+ s->align = calculate_alignment(flags, align, size);
+ s->ctor = ctor;
- err = __kmem_cache_create(s, flags);
- if (!err) {
- s->refcount = 1;
- list_add(&s->list, &slab_caches);
- memcg_cache_list_add(memcg, s);
- } else {
- kfree(s->name);
- kmem_cache_free(kmem_cache, s);
- }
- } else
+ s->name = kstrdup(name, GFP_KERNEL);
+ if (!s->name) {
err = -ENOMEM;
+ goto out_free_cache;
+ }
+
+ err = memcg_register_cache(memcg, s, parent_cache);
+ if (err)
+ goto out_free_cache;
-out_locked:
+ err = __kmem_cache_create(s, flags);
+ if (err)
+ goto out_free_cache;
+
+ s->refcount = 1;
+ list_add(&s->list, &slab_caches);
+ memcg_cache_list_add(memcg, s);
+
+out_unlock:
mutex_unlock(&slab_mutex);
put_online_cpus();
if (err) {
-
if (flags & SLAB_PANIC)
panic("kmem_cache_create: Failed to create slab '%s'.
Error %d\n",
name, err);
@@ -236,11 +233,14 @@ out_locked:
name, err);
dump_stack();
}
-
return NULL;
}
-
return s;
+
+out_free_cache:
+ kfree(s->name);
+ kmem_cache_free(kmem_cache, s);
+ goto out_unlock;
}
struct kmem_cache *
--
1.7.10.4
--
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