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-rw-r--r--drivers/md/dm-exception-store.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c
index 34a75939a0c..d12379b5cdb 100644
--- a/drivers/md/dm-exception-store.c
+++ b/drivers/md/dm-exception-store.c
@@ -16,6 +16,8 @@
#include <linux/vmalloc.h>
#include <linux/slab.h>
+#define DM_MSG_PREFIX "snapshots"
+
/*-----------------------------------------------------------------
* Persistent snapshots, by persistent we mean that the snapshot
* will survive a reboot.