From: Christoph Lameter <clameter@sgi.com>
Date: Tue, 17 Jul 2007 11:03:21 +0000 (-0700)
Subject: SLUB Debug: fix initial object debug state of NUMA bootstrap objects
X-Git-Tag: v2.6.23-rc1~749
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d45f39cb06610ea456e1d689149b9becacda8b40;p=karo-tx-linux.git

SLUB Debug: fix initial object debug state of NUMA bootstrap objects

The function we are calling to initialize object debug state during early NUMA
bootstrap sets up an inactive object giving it the wrong redzone signature.
The bootstrap nodes are active objects and should have active redzone
signatures.

Currently slab validation complains and reverts the object to active state.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/slub.c b/mm/slub.c
index 03ae5490c3dd..a18708821c1e 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1876,7 +1876,8 @@ static struct kmem_cache_node * __init early_kmem_cache_node_alloc(gfp_t gfpflag
 	page->freelist = get_freepointer(kmalloc_caches, n);
 	page->inuse++;
 	kmalloc_caches->node[node] = n;
-	setup_object_debug(kmalloc_caches, page, n);
+	init_object(kmalloc_caches, n, 1);
+	init_tracking(kmalloc_caches, n);
 	init_kmem_cache_node(n);
 	atomic_long_inc(&n->nr_slabs);
 	add_partial(n, page);