lkml.org 
[lkml]   [2011]   [Apr]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[slubllv3 20/21] slub: Not necessary to check for empty slab on load_freelist
Load freelist is now only branched to if there are objects available.
So no need to check.

---
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 2011-04-01 10:22:56.000000000 -0500
+++ linux-2.6/mm/slub.c 2011-04-01 10:22:58.000000000 -0500
@@ -1976,14 +1976,13 @@ static void *__slab_alloc(struct kmem_ca
"__slab_alloc"));
}

-load_freelist:
- VM_BUG_ON(!page->frozen);
-
if (unlikely(!object)) {
c->page = NULL;
goto new_slab;
}

+load_freelist:
+ VM_BUG_ON(!page->frozen);
c->freelist = get_freepointer(s, object);

#ifdef CONFIG_CMPXCHG_LOCAL


\
 
 \ /
  Last update: 2011-04-15 22:51    [from the cache]
©2003-2011 Jasper Spaans