diff options
| -rw-r--r-- | mm/slab.c | 49 |
1 files changed, 16 insertions, 33 deletions
@@ -547,8 +547,6 @@ static struct cache_names __initdata cache_names[] = { #undef CACHE }; -static struct arraycache_init initarray_cache __initdata = - { {0, BOOT_CPUCACHE_ENTRIES, 1, 0} }; static struct arraycache_init initarray_generic = { {0, BOOT_CPUCACHE_ENTRIES, 1, 0} }; @@ -1572,12 +1570,9 @@ static void setup_nodelists_pointer(struct kmem_cache *cachep) */ void __init kmem_cache_init(void) { - size_t left_over; struct cache_sizes *sizes; struct cache_names *names; int i; - int order; - int node; kmem_cache = &kmem_cache_boot; setup_nodelists_pointer(kmem_cache); @@ -1618,36 +1613,16 @@ void __init kmem_cache_init(void) * 6) Resize the head arrays of the kmalloc caches to their final sizes. */ - node = numa_mem_id(); - /* 1) create the kmem_cache */ - INIT_LIST_HEAD(&slab_caches); - list_add(&kmem_cache->list, &slab_caches); - kmem_cache->colour_off = cache_line_size(); - kmem_cache->array[smp_processor_id()] = &initarray_cache.cache; /* * struct kmem_cache size depends on nr_node_ids & nr_cpu_ids */ - kmem_cache->size = offsetof(struct kmem_cache, array[nr_cpu_ids]) + - nr_node_ids * sizeof(struct kmem_list3 *); - kmem_cache->object_size = kmem_cache->size; - kmem_cache->size = ALIGN(kmem_cache->object_size, - cache_line_size()); - kmem_cache->reciprocal_buffer_size = - reciprocal_value(kmem_cache->size); - - for (order = 0; order < MAX_ORDER; order++) { - cache_estimate(order, kmem_cache->size, - cache_line_size(), 0, &left_over, &kmem_cache->num); - if (kmem_cache->num) - break; - } - BUG_ON(!kmem_cache->num); - kmem_cache->gfporder = order; - kmem_cache->colour = left_over / kmem_cache->colour_off; - kmem_cache->slab_size = ALIGN(kmem_cache->num * sizeof(kmem_bufctl_t) + - sizeof(struct slab), cache_line_size()); + create_boot_cache(kmem_cache, "kmem_cache", + offsetof(struct kmem_cache, array[nr_cpu_ids]) + + nr_node_ids * sizeof(struct kmem_list3 *), + SLAB_HWCACHE_ALIGN); + list_add(&kmem_cache->list, &slab_caches); /* 2+3) create the kmalloc caches */ sizes = malloc_sizes; @@ -1695,7 +1670,6 @@ void __init kmem_cache_init(void) ptr = kmalloc(sizeof(struct arraycache_init), GFP_NOWAIT); - BUG_ON(cpu_cache_get(kmem_cache) != &initarray_cache.cache); memcpy(ptr, cpu_cache_get(kmem_cache), sizeof(struct arraycache_init)); /* @@ -2250,7 +2224,15 @@ static int __init_refok setup_cpu_cache(struct kmem_cache *cachep, gfp_t gfp) if (slab_state == DOWN) { /* - * Note: the first kmem_cache_create must create the cache + * Note: Creation of first cache (kmem_cache). + * The setup_list3s is taken care + * of by the caller of __kmem_cache_create + */ + cachep->array[smp_processor_id()] = &initarray_generic.cache; + slab_state = PARTIAL; + } else if (slab_state == PARTIAL) { + /* + * Note: the second kmem_cache_create must create the cache * that's used by kmalloc(24), otherwise the creation of * further caches will BUG(). */ @@ -2258,7 +2240,7 @@ static int __init_refok setup_cpu_cache(struct kmem_cache *cachep, gfp_t gfp) /* * If the cache that's used by kmalloc(sizeof(kmem_list3)) is - * the first cache, then we need to set up all its list3s, + * the second cache, then we need to set up all its list3s, * otherwise the creation of further caches will BUG(). */ set_up_list3s(cachep, SIZE_AC); @@ -2267,6 +2249,7 @@ static int __init_refok setup_cpu_cache(struct kmem_cache *cachep, gfp_t gfp) else slab_state = PARTIAL_ARRAYCACHE; } else { + /* Remaining boot caches */ cachep->array[smp_processor_id()] = kmalloc(sizeof(struct arraycache_init), gfp); |
