From: Libin <huawei.libin@huawei.com>
Date: Thu, 18 Jul 2013 07:39:51 +0000 (+0800)
Subject: slub: Remove unnecessary page NULL check
X-Git-Tag: v3.12-rc1~8^2~5
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=ac6434e6b804845290e4de06210fe110674140e6;p=linux.git

slub: Remove unnecessary page NULL check

In commit 4d7868e6(slub: Do not dereference NULL pointer in node_match)
had added check for page NULL in node_match.  Thus, it is not needed
to check it before node_match, remove it.

Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Libin <huawei.libin@huawei.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
---

diff --git a/mm/slub.c b/mm/slub.c
index d51f75d565c8..65f43be318a3 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2386,7 +2386,7 @@ static __always_inline void *slab_alloc_node(struct kmem_cache *s,
 
 	object = c->freelist;
 	page = c->page;
-	if (unlikely(!object || !page || !node_match(page, node)))
+	if (unlikely(!object || !node_match(page, node)))
 		object = __slab_alloc(s, gfpflags, node, addr, c);
 
 	else {