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-rw-r--r--drivers/md/linear.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/linear.h b/drivers/md/linear.h
index b685ddd7d7f7..8d392e6098b3 100644
--- 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
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