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yaml
---
r: 346885
b: refs/heads/master
c: 2f9baa9
h: refs/heads/master
i:
  346883: 29e9087
v: v3
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Christoph Lameter authored and Pekka Enberg committed Dec 11, 2012
1 parent 798d2e3 commit f80b066
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Showing 2 changed files with 17 additions and 34 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: dffb4d605c23110e3ad54b8c9f244a8235c013c2
refs/heads/master: 2f9baa9fcf8d0a204ca129a671d6086cc100faab
49 changes: 16 additions & 33 deletions trunk/mm/slab.c
Original file line number Diff line number Diff line change
Expand Up @@ -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} };

Expand Down Expand Up @@ -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);
Expand Down Expand Up @@ -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;
Expand Down Expand Up @@ -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));
/*
Expand Down Expand Up @@ -2250,15 +2224,23 @@ 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().
*/
cachep->array[smp_processor_id()] = &initarray_generic.cache;

/*
* 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);
Expand All @@ -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);

Expand Down

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