md linear: fix a race between linear_add() and linear_congested()

[pandora-kernel.git] / drivers / md / linear.h

diff --git a/drivers/md/linear.h b/drivers/md/linear.h
index b685ddd..8d392e6 100644 (file)
--- a/drivers/md/linear.h
+++ b/drivers/md/linear.h
@@ -10,6 +10,7 @@ struct linear_conf
 {
        struct rcu_head         rcu;
        sector_t                array_sectors;
+       int                     raid_disks; /* a copy of mddev->raid_disks */
        struct dev_info         disks[0];
 };
 #endif