From: Christoph Lameter <clameter@sgi.com>
Date: Sat, 16 Feb 2008 07:45:24 +0000 (-0800)
Subject: slub: Remove useless checks in alloc_debug_processing
X-Git-Tag: v2.6.25-rc4~107^2~7
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=d692ef6dcd20da60786470654410e85f29c2ddd9;p=linux-2.6-omap-h63xx.git

slub: Remove useless checks in alloc_debug_processing

Alloc debug processing is never called with a NULL object pointer.
No reason to check for NULL.

Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
---

diff --git a/mm/slub.c b/mm/slub.c
index d7d0d866b6b..0a5a1001590 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -852,7 +852,7 @@ static int alloc_debug_processing(struct kmem_cache *s, struct page *page,
 	if (!check_slab(s, page))
 		goto bad;
 
-	if (object && !on_freelist(s, page, object)) {
+	if (!on_freelist(s, page, object)) {
 		object_err(s, page, object, "Object already allocated");
 		goto bad;
 	}
@@ -862,7 +862,7 @@ static int alloc_debug_processing(struct kmem_cache *s, struct page *page,
 		goto bad;
 	}
 
-	if (object && !check_object(s, page, object, 0))
+	if (!check_object(s, page, object, 0))
 		goto bad;
 
 	/* Success perform special debug activities for allocs */