md: fix md_write_start() deadlock w/o metadata devices

[sfrench/cifs-2.6.git] / drivers / md / md.h

diff --git a/drivers/md/md.h b/drivers/md/md.h
index 58cd20a5e85edb1db853661dcd749d99682a796c..fbc925cce8107019dcc4b2aa5310c7d100431a46 100644 (file)
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -468,6 +468,8 @@ struct mddev {
        void (*sync_super)(struct mddev *mddev, struct md_rdev *rdev);
        struct md_cluster_info          *cluster_info;
        unsigned int                    good_device_nr; /* good device num within cluster raid */
+
+       bool    has_superblocks:1;
 };
 
 enum recovery_flags {