diff options
| author | Christoph Lameter <cl@linux.com> | 2012-09-05 00:20:34 +0000 |
|---|---|---|
| committer | Pekka Enberg <penberg@kernel.org> | 2012-09-05 12:00:36 +0300 |
| commit | 278b1bb1313664d4999a7f7d47a8a8d964862d02 (patch) | |
| tree | 65e05bc30338a24fd4afd4c4e8b49b8d3e002218 /mm/slab.c | |
| parent | 96d17b7be0a9849d381442030886211dbb2a7061 (diff) | |
| download | linux-278b1bb1313664d4999a7f7d47a8a8d964862d02.tar.bz2 | |
mm/sl[aou]b: Move kmem_cache allocations into common code
Shift the allocations to common code. That way the allocation and
freeing of the kmem_cache structures is handled by common code.
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/slab.c')
| -rw-r--r-- | mm/slab.c | 34 |
1 files changed, 16 insertions, 18 deletions
diff --git a/mm/slab.c b/mm/slab.c index de961b48a6a4..abc83334e5fb 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -1676,7 +1676,8 @@ void __init kmem_cache_init(void) * bug. */ - sizes[INDEX_AC].cs_cachep = __kmem_cache_create(names[INDEX_AC].name, + sizes[INDEX_AC].cs_cachep = kmem_cache_zalloc(kmem_cache, GFP_NOWAIT); + __kmem_cache_create(sizes[INDEX_AC].cs_cachep, names[INDEX_AC].name, sizes[INDEX_AC].cs_size, ARCH_KMALLOC_MINALIGN, ARCH_KMALLOC_FLAGS|SLAB_PANIC, @@ -1684,8 +1685,8 @@ void __init kmem_cache_init(void) 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, + sizes[INDEX_L3].cs_cachep = kmem_cache_zalloc(kmem_cache, GFP_NOWAIT); + __kmem_cache_create(sizes[INDEX_L3].cs_cachep, names[INDEX_L3].name, sizes[INDEX_L3].cs_size, ARCH_KMALLOC_MINALIGN, ARCH_KMALLOC_FLAGS|SLAB_PANIC, @@ -1704,7 +1705,8 @@ void __init kmem_cache_init(void) * allow tighter packing of the smaller caches. */ if (!sizes->cs_cachep) { - sizes->cs_cachep = __kmem_cache_create(names->name, + sizes->cs_cachep = kmem_cache_zalloc(kmem_cache, GFP_NOWAIT); + __kmem_cache_create(sizes->cs_cachep, names->name, sizes->cs_size, ARCH_KMALLOC_MINALIGN, ARCH_KMALLOC_FLAGS|SLAB_PANIC, @@ -1712,7 +1714,8 @@ void __init kmem_cache_init(void) list_add(&sizes->cs_cachep->list, &slab_caches); } #ifdef CONFIG_ZONE_DMA - sizes->cs_dmacachep = __kmem_cache_create( + sizes->cs_dmacachep = kmem_cache_zalloc(kmem_cache, GFP_NOWAIT); + __kmem_cache_create(sizes->cs_dmacachep, names->name_dma, sizes->cs_size, ARCH_KMALLOC_MINALIGN, @@ -2356,13 +2359,13 @@ static int __init_refok setup_cpu_cache(struct kmem_cache *cachep, gfp_t gfp) * cacheline. This can be beneficial if you're counting cycles as closely * as davem. */ -struct kmem_cache * -__kmem_cache_create (const char *name, size_t size, size_t align, +int +__kmem_cache_create (struct kmem_cache *cachep, const char *name, size_t size, size_t align, unsigned long flags, void (*ctor)(void *)) { size_t left_over, slab_size, ralign; - struct kmem_cache *cachep = NULL; gfp_t gfp; + int err; #if DEBUG #if FORCED_DEBUG @@ -2450,11 +2453,6 @@ __kmem_cache_create (const char *name, size_t size, size_t align, else gfp = GFP_NOWAIT; - /* Get cache's description obj. */ - cachep = kmem_cache_zalloc(kmem_cache, gfp); - if (!cachep) - return NULL; - cachep->nodelists = (struct kmem_list3 **)&cachep->array[nr_cpu_ids]; cachep->object_size = size; cachep->align = align; @@ -2509,8 +2507,7 @@ __kmem_cache_create (const char *name, size_t size, size_t align, if (!cachep->num) { printk(KERN_ERR "kmem_cache_create: couldn't create cache %s.\n", name); - kmem_cache_free(kmem_cache, cachep); - return NULL; + return -E2BIG; } slab_size = ALIGN(cachep->num * sizeof(kmem_bufctl_t) + sizeof(struct slab), align); @@ -2567,9 +2564,10 @@ __kmem_cache_create (const char *name, size_t size, size_t align, cachep->name = name; cachep->refcount = 1; - if (setup_cpu_cache(cachep, gfp)) { + err = setup_cpu_cache(cachep, gfp); + if (err) { __kmem_cache_shutdown(cachep); - return NULL; + return err; } if (flags & SLAB_DEBUG_OBJECTS) { @@ -2582,7 +2580,7 @@ __kmem_cache_create (const char *name, size_t size, size_t align, slab_set_debugobj_lock_classes(cachep); } - return cachep; + return 0; } #if DEBUG |