From: Zhang, Yanmin <yanmin_zhang@linux.intel.com>
Date: Thu, 1 Apr 2010 09:32:30 +0000 (+0800)
Subject: slub: Fix bad boundary check in init_kmem_cache_nodes()
X-Git-Tag: v2.6.34-rc7~17^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=111c7d82436db4c7673922b6ba021cebb7d26dd8;p=platform%2Fupstream%2Fkernel-adaptation-pc.git

slub: Fix bad boundary check in init_kmem_cache_nodes()

Function init_kmem_cache_nodes is incorrect when checking upper limitation of
kmalloc_caches. The breakage was introduced by commit
91efd773c74bb26b5409c85ad755d536448e229c ("dma kmalloc handling fixes").

Acked-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
---

diff --git a/mm/slub.c b/mm/slub.c
index 7d6c8b1..d2a54fe 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2153,7 +2153,7 @@ static int init_kmem_cache_nodes(struct kmem_cache *s, gfp_t gfpflags)
 	int local_node;
 
 	if (slab_state >= UP && (s < kmalloc_caches ||
-			s > kmalloc_caches + KMALLOC_CACHES))
+			s >= kmalloc_caches + KMALLOC_CACHES))
 		local_node = page_to_nid(virt_to_page(s));
 	else
 		local_node = 0;