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-rw-r--r--drivers/md/md.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h
index f184b69ef337..87430fea2875 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -289,6 +289,7 @@ struct mddev_s
* hot-adding a bitmap. It should
* eventually be settable by sysfs.
*/
+ struct mutex bitmap_mutex;
struct list_head all_mddevs;
};