diff options
| author | Christoph Lameter <cl@linux.com> | 2012-09-04 23:18:33 +0000 |
|---|---|---|
| committer | Pekka Enberg <penberg@kernel.org> | 2012-09-05 12:00:35 +0300 |
| commit | 945cf2b6199be70ff03102b9e642c3bb05d01de9 (patch) | |
| tree | b0deef56b1d79af1054f0cf1bd91c6fb00ce31a5 /mm/slub.c | |
| parent | 7c9adf5a5471647f392169ef19d3e81dcfa76045 (diff) | |
| download | lwn-945cf2b6199be70ff03102b9e642c3bb05d01de9.tar.gz lwn-945cf2b6199be70ff03102b9e642c3bb05d01de9.zip | |
mm/sl[aou]b: Extract a common function for kmem_cache_destroy
kmem_cache_destroy does basically the same in all allocators.
Extract common code which is easy since we already have common mutex
handling.
Reviewed-by: Glauber Costa <glommer@parallels.com>
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.c | 36 |
1 files changed, 11 insertions, 25 deletions
diff --git a/mm/slub.c b/mm/slub.c index 24aa362edef7..724adea34384 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -624,7 +624,7 @@ static void object_err(struct kmem_cache *s, struct page *page, print_trailer(s, page, object); } -static void slab_err(struct kmem_cache *s, struct page *page, char *fmt, ...) +static void slab_err(struct kmem_cache *s, struct page *page, const char *fmt, ...) { va_list args; char buf[100]; @@ -3146,7 +3146,7 @@ static void list_slab_objects(struct kmem_cache *s, struct page *page, sizeof(long), GFP_ATOMIC); if (!map) return; - slab_err(s, page, "%s", text); + slab_err(s, page, text, s->name); slab_lock(page); get_map(s, page, map); @@ -3178,7 +3178,7 @@ static void free_partial(struct kmem_cache *s, struct kmem_cache_node *n) discard_slab(s, page); } else { list_slab_objects(s, page, - "Objects remaining on kmem_cache_close()"); + "Objects remaining in %s on kmem_cache_close()"); } } } @@ -3191,7 +3191,6 @@ static inline int kmem_cache_close(struct kmem_cache *s) int node; flush_all(s); - free_percpu(s->cpu_slab); /* Attempt to free all objects */ for_each_node_state(node, N_NORMAL_MEMORY) { struct kmem_cache_node *n = get_node(s, node); @@ -3200,33 +3199,20 @@ static inline int kmem_cache_close(struct kmem_cache *s) if (n->nr_partial || slabs_node(s, node)) return 1; } + free_percpu(s->cpu_slab); free_kmem_cache_nodes(s); return 0; } -/* - * Close a cache and release the kmem_cache structure - * (must be used for caches created using kmem_cache_create) - */ -void kmem_cache_destroy(struct kmem_cache *s) +int __kmem_cache_shutdown(struct kmem_cache *s) { - mutex_lock(&slab_mutex); - s->refcount--; - if (!s->refcount) { - list_del(&s->list); - mutex_unlock(&slab_mutex); - if (kmem_cache_close(s)) { - printk(KERN_ERR "SLUB %s: %s called for cache that " - "still has objects.\n", s->name, __func__); - dump_stack(); - } - if (s->flags & SLAB_DESTROY_BY_RCU) - rcu_barrier(); - sysfs_slab_remove(s); - } else - mutex_unlock(&slab_mutex); + return kmem_cache_close(s); +} + +void __kmem_cache_destroy(struct kmem_cache *s) +{ + sysfs_slab_remove(s); } -EXPORT_SYMBOL(kmem_cache_destroy); /******************************************************************** * Kmalloc subsystem |