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authorKonstantin Khlebnikov <khlebnikov@yandex-team.ru>2015-08-06 15:46:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-08-07 04:39:40 +0300
commit3e810ae2db76ccde770fd8e5a0de6408ea36e211 (patch)
tree8714a2f632ce242ecb72469b4e7bd86bb0649acd
parent3ead7c52bdb0ab44f4bb1feed505a8323cc12ba7 (diff)
downloadlinux-stericsson-3e810ae2db76ccde770fd8e5a0de6408ea36e211.tar.gz
mm/slub: allow merging when SLAB_DEBUG_FREE is set
This patch fixes creation of new kmem-caches after enabling sanity_checks for existing mergeable kmem-caches in runtime: before that patch creation fails because unique name in sysfs already taken by existing kmem-cache. Unlike other debug options this doesn't change object layout and could be enabled and disabled at any time. Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Acked-by: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Acked-by: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/slab_common.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 3e5f8f29c286..86831105a09f 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -37,8 +37,7 @@ struct kmem_cache *kmem_cache;
SLAB_TRACE | SLAB_DESTROY_BY_RCU | SLAB_NOLEAKTRACE | \
SLAB_FAILSLAB)
-#define SLAB_MERGE_SAME (SLAB_DEBUG_FREE | SLAB_RECLAIM_ACCOUNT | \
- SLAB_CACHE_DMA | SLAB_NOTRACK)
+#define SLAB_MERGE_SAME (SLAB_RECLAIM_ACCOUNT | SLAB_CACHE_DMA | SLAB_NOTRACK)
/*
* Merge control. If this is set then no merging of slab caches will occur.