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slub: Prepare inuse field in new_slab() 

inuse will always be set to page->objects. There is no point in
initializing the field to zero in new_slab() and then overwriting
the value in __slab_alloc().

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
This commit is contained in:
Christoph Lameter 2011-08-09 16:12:24 -05:00 committed by Pekka Enberg
parent 7db0d70540
commit e6e82ea112
1 changed files with 2 additions and 3 deletions
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5
mm/slub.c
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@ -1447,7 +1447,7 @@ static struct page *new_slab(struct kmem_cache *s, gfp_t flags, int node)
set_freepointer(s, last, NULL);
page->freelist = start;
page->inuse = 0;
page->inuse = page->objects;
page->frozen = 1;
out:
return page;
@ -2139,7 +2139,6 @@ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
*/
object = page->freelist;
page->freelist = NULL;
page->inuse = page->objects;
stat(s, ALLOC_SLAB);
c->node = page_to_nid(page);
@ -2681,7 +2680,7 @@ static void early_kmem_cache_node_alloc(int node)
n = page->freelist;
BUG_ON(!n);
page->freelist = get_freepointer(kmem_cache_node, n);
page->inuse++;
page->inuse = 1;
page->frozen = 0;
kmem_cache_node->node[node] = n;
#ifdef CONFIG_SLUB_DEBUG