diff options
| -rw-r--r-- | mm/slab.h | 10 | ||||
| -rw-r--r-- | mm/slab_common.c | 4 | ||||
| -rw-r--r-- | mm/slub.c | 15 |
3 files changed, 25 insertions, 4 deletions
diff --git a/mm/slab.h b/mm/slab.h index c4f9a361bd18..84c28f451d2d 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -36,6 +36,16 @@ extern struct kmem_cache *kmem_cache; struct kmem_cache *__kmem_cache_create(const char *name, size_t size, size_t align, unsigned long flags, void (*ctor)(void *)); +#ifdef CONFIG_SLUB +struct kmem_cache *__kmem_cache_alias(const char *name, size_t size, + size_t align, unsigned long flags, void (*ctor)(void *)); +#else +static inline struct kmem_cache *__kmem_cache_alias(const char *name, size_t size, + size_t align, unsigned long flags, void (*ctor)(void *)) +{ return NULL; } +#endif + + int __kmem_cache_shutdown(struct kmem_cache *); #endif diff --git a/mm/slab_common.c b/mm/slab_common.c index f18c06fd97c7..adc42b01b25b 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -115,6 +115,10 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size, size_t align goto out_locked; } + s = __kmem_cache_alias(name, size, align, flags, ctor); + if (s) + goto out_locked; + s = __kmem_cache_create(n, size, align, flags, ctor); if (s) { diff --git a/mm/slub.c b/mm/slub.c index 91c9a2fe6760..64d445e7a27d 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -3708,7 +3708,7 @@ void __init kmem_cache_init(void) slub_max_order = 0; kmem_size = offsetof(struct kmem_cache, node) + - nr_node_ids * sizeof(struct kmem_cache_node *); + nr_node_ids * sizeof(struct kmem_cache_node *); /* Allocate two kmem_caches from the page allocator */ kmalloc_size = ALIGN(kmem_size, cache_line_size()); @@ -3922,7 +3922,7 @@ 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_alias(const char *name, size_t size, size_t align, unsigned long flags, void (*ctor)(void *)) { struct kmem_cache *s; @@ -3939,11 +3939,18 @@ struct kmem_cache *__kmem_cache_create(const char *name, size_t size, if (sysfs_slab_alias(s, name)) { s->refcount--; - return NULL; + s = NULL; } - return s; } + return s; +} + +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; + s = kmem_cache_alloc(kmem_cache, GFP_KERNEL); if (s) { if (kmem_cache_open(s, name, |