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Commit e6e82ea1 authored by Christoph Lameter's avatar Christoph Lameter Committed by Pekka Enberg
Browse files

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: default avatarChristoph Lameter <cl@linux.com>
Signed-off-by: default avatarPekka Enberg <penberg@kernel.org>
parent 7db0d705

mm/slub.c

+2 −3
Original line number Diff line number Diff line
@@ -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 @@ new_slab: 
		 */

		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