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-rw-r--r--include/linux/device-mapper.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 61103d2bc244..e3d1c33d1558 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -171,6 +171,7 @@ int dm_wait_event(struct mapped_device *md, int event_nr);
/*
* Info functions.
*/
+const char *dm_device_name(struct mapped_device *md);
struct gendisk *dm_disk(struct mapped_device *md);
int dm_suspended(struct mapped_device *md);