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path: root/drivers/md/dm.c
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Diffstat (limited to 'drivers/md/dm.c')
-rw-r--r--drivers/md/dm.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 6982f86db6d..3ed2e53b9eb 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -21,6 +21,8 @@
#include <linux/hdreg.h>
#include <linux/blktrace_api.h>
+#define DM_MSG_PREFIX "core"
+
static const char *_name = DM_NAME;
static unsigned int major = 0;
@@ -1108,6 +1110,12 @@ void dm_get(struct mapped_device *md)
atomic_inc(&md->holders);
}
+const char *dm_device_name(struct mapped_device *md)
+{
+ return md->name;
+}
+EXPORT_SYMBOL_GPL(dm_device_name);
+
void dm_put(struct mapped_device *md)
{
struct dm_table *map;