[slubllv6 16/17] slub: Not necessary to check for empty slab on load_freelist

[Christoph Lameter <cl@linux.com>]

[-- Attachment #1: goto_load_freelist --]
[-- Type: text/plain, Size: 870 bytes --]

load_freelist is now only branched to only if there are objects available.
So no need to check the object variable for NULL.

---
 mm/slub.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

Index: linux-2.6/mm/slub.c
===================================================================
--- linux-2.6.orig/mm/slub.c	2011-05-24 09:41:11.294874943 -0500
+++ linux-2.6/mm/slub.c	2011-05-24 09:41:15.454874919 -0500
@@ -1983,9 +1983,6 @@ static void *__slab_alloc(struct kmem_ca
 			NULL, new.counters,
 			"__slab_alloc"));
 
-load_freelist:
-	VM_BUG_ON(!page->frozen);
-
 	if (unlikely(!object)) {
 		c->page = NULL;
 		stat(s, DEACTIVATE_BYPASS);
@@ -1994,6 +1991,8 @@ load_freelist:
 
 	stat(s, ALLOC_REFILL);
 
+load_freelist:
+	VM_BUG_ON(!page->frozen);
 	c->freelist = get_freepointer(s, object);
 	c->tid = next_tid(c->tid);
 	local_irq_restore(flags);