diff options
| -rw-r--r-- | mm/slab.c | 7 | ||||
| -rw-r--r-- | mm/slab_common.c | 7 | ||||
| -rw-r--r-- | mm/slob.c | 4 | ||||
| -rw-r--r-- | mm/slub.c | 2 |
4 files changed, 16 insertions, 4 deletions
diff --git a/mm/slab.c b/mm/slab.c index 3b4587bb7b19..a69903168497 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -1680,6 +1680,7 @@ void __init kmem_cache_init(void) ARCH_KMALLOC_FLAGS|SLAB_PANIC, NULL); + list_add(&sizes[INDEX_AC].cs_cachep->list, &slab_caches); if (INDEX_AC != INDEX_L3) { sizes[INDEX_L3].cs_cachep = __kmem_cache_create(names[INDEX_L3].name, @@ -1687,6 +1688,7 @@ void __init kmem_cache_init(void) ARCH_KMALLOC_MINALIGN, ARCH_KMALLOC_FLAGS|SLAB_PANIC, NULL); + list_add(&sizes[INDEX_L3].cs_cachep->list, &slab_caches); } slab_early_init = 0; @@ -1705,6 +1707,7 @@ void __init kmem_cache_init(void) ARCH_KMALLOC_MINALIGN, ARCH_KMALLOC_FLAGS|SLAB_PANIC, NULL); + list_add(&sizes->cs_cachep->list, &slab_caches); } #ifdef CONFIG_ZONE_DMA sizes->cs_dmacachep = __kmem_cache_create( @@ -1714,6 +1717,7 @@ void __init kmem_cache_init(void) ARCH_KMALLOC_FLAGS|SLAB_CACHE_DMA| SLAB_PANIC, NULL); + list_add(&sizes->cs_dmacachep->list, &slab_caches); #endif sizes++; names++; @@ -2583,6 +2587,7 @@ __kmem_cache_create (const char *name, size_t size, size_t align, } cachep->ctor = ctor; cachep->name = name; + cachep->refcount = 1; if (setup_cpu_cache(cachep, gfp)) { __kmem_cache_destroy(cachep); @@ -2599,8 +2604,6 @@ __kmem_cache_create (const char *name, size_t size, size_t align, slab_set_debugobj_lock_classes(cachep); } - /* cache setup completed, link it into the list */ - list_add(&cachep->list, &slab_caches); return cachep; } diff --git a/mm/slab_common.c b/mm/slab_common.c index fe8dc943c285..5190a7cd02bd 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -111,6 +111,13 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size, size_t align if (!s) err = -ENOSYS; /* Until __kmem_cache_create returns code */ + /* + * Check if the slab has actually been created and if it was a + * real instatiation. Aliases do not belong on the list + */ + if (s && s->refcount == 1) + list_add(&s->list, &slab_caches); + out_locked: mutex_unlock(&slab_mutex); put_online_cpus(); diff --git a/mm/slob.c b/mm/slob.c index 45d4ca79933a..5225d28f2694 100644 --- a/mm/slob.c +++ b/mm/slob.c @@ -540,6 +540,10 @@ struct kmem_cache *__kmem_cache_create(const char *name, size_t size, void kmem_cache_destroy(struct kmem_cache *c) { + mutex_lock(&slab_mutex); + list_del(&c->list); + mutex_unlock(&slab_mutex); + kmemleak_free(c); if (c->flags & SLAB_DESTROY_BY_RCU) rcu_barrier(); diff --git a/mm/slub.c b/mm/slub.c index c66908983218..24aa362edef7 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -3975,7 +3975,6 @@ struct kmem_cache *__kmem_cache_create(const char *name, size_t size, size, align, flags, ctor)) { int r; - list_add(&s->list, &slab_caches); mutex_unlock(&slab_mutex); r = sysfs_slab_add(s); mutex_lock(&slab_mutex); @@ -3983,7 +3982,6 @@ struct kmem_cache *__kmem_cache_create(const char *name, size_t size, if (!r) return s; - list_del(&s->list); kmem_cache_close(s); } kmem_cache_free(kmem_cache, s); |