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 98801d4..0b0c2a3 100644 (file)
--- 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