From: Christoph Lameter <clameter@sgi.com>
Date: Wed, 23 May 2007 20:57:31 +0000 (-0700)
Subject: SLUB Debug: Fix object size calculation
X-Git-Tag: v2.6.22-rc3~77
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c12b3c62513ecf95c979d5c1785f99562b9dd10d;p=linux-2.6

SLUB Debug: Fix object size calculation

The object size calculation is wrong if !CONFIG_SLUB_DEBUG because the
#ifdef CONFIG_SLUB_DEBUG is now switching off the size adjustments for
DESTROY_BY_RCU and ctor.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Acked-by: Hugh Dickins <hugh@veritas.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 98801d404d..0b0c2a3e76 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1917,7 +1917,6 @@ static int calculate_sizes(struct kmem_cache *s)
 	 */
 	s->inuse = size;
 
-#ifdef CONFIG_SLUB_DEBUG
 	if (((flags & (SLAB_DESTROY_BY_RCU | SLAB_POISON)) ||
 		s->ctor)) {
 		/*
@@ -1932,6 +1931,7 @@ static int calculate_sizes(struct kmem_cache *s)
 		size += sizeof(void *);
 	}
 
+#ifdef CONFIG_SLUB_DEBUG
 	if (flags & SLAB_STORE_USER)
 		/*
 		 * Need to store information about allocs and frees after