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authorChristoph Lameter <cl@linux.com>2012-07-06 20:25:11 (GMT)
committerPekka Enberg <penberg@kernel.org>2012-07-09 09:13:35 (GMT)
commit97d06609158e61f6bdf538c4a6788e2de492236f (patch)
treefa3f57ff3e2d3f4f866d84dd9d634ade43941be8 /mm/slab_common.c
parent039363f38bfe5f6281e9eae5e0518b11577d9d50 (diff)
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mm, sl[aou]b: Common definition for boot state of the slab allocators
All allocators have some sort of support for the bootstrap status. Setup a common definition for the boot states and make all slab allocators use that definition. Reviewed-by: Glauber Costa <glommer@parallels.com> Reviewed-by: Joonsoo Kim <js1304@gmail.com> Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'mm/slab_common.c')
-rw-r--r--mm/slab_common.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 80412be..ca1aaf6 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -16,6 +16,10 @@
#include <asm/tlbflush.h>
#include <asm/page.h>
+#include "slab.h"
+
+enum slab_state slab_state;
+
/*
* kmem_cache_create - Create a cache.
* @name: A string which is used in /proc/slabinfo to identify this cache.
@@ -66,3 +70,8 @@ out:
return s;
}
EXPORT_SYMBOL(kmem_cache_create);
+
+int slab_is_available(void)
+{
+ return slab_state >= UP;
+}