Commit 4eade540 authored by Christoph Lameter's avatar Christoph Lameter Committed by Pekka Enberg
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slub: Not necessary to check for empty slab on load_freelist 



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

Signed-off-by: default avatarPekka Enberg <penberg@kernel.org>
parent 03e404af

mm/slub.c

+2 −3
Original line number Diff line number Diff line
@@ -1997,9 +1997,6 @@ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, 
			NULL, new.counters,

			"__slab_alloc"));



load_freelist:

	VM_BUG_ON(!page->frozen);



	if (unlikely(!object)) {

		c->page = NULL;

		stat(s, DEACTIVATE_BYPASS);
@@ -2008,6 +2005,8 @@ 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);