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-rw-r--r--drivers/md/dm.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index e6e66d0..7fff744 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -14,6 +14,7 @@
#include <linux/device-mapper.h>
#include <linux/list.h>
#include <linux/blkdev.h>
+#include <linux/backing-dev.h>
#include <linux/hdreg.h>
#include <linux/completion.h>
#include <linux/kobject.h>
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