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>
diff --git a/mm/slub.c b/mm/slub.c
index d4b76be..83bb81d 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1447,7 +1447,7 @@
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 @@
*/
object = page->freelist;
page->freelist = NULL;
- page->inuse = page->objects;
stat(s, ALLOC_SLAB);
c->node = page_to_nid(page);
@@ -2681,7 +2680,7 @@
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