1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
index b2edcc434e41..a081fb40a5a2 100644
--- a/drivers/md/raid5.h
+++ b/drivers/md/raid5.h
@@ -198,6 +198,8 @@ struct stripe_head {
         struct hlist_node       hash;
         struct list_head        lru;          /* inactive_list or handle_list */
         struct raid5_private_data *raid_conf;
+        short                   generation;     /* increments with every
+                                                 * reshape */
         sector_t                sector;         /* sector of this row */
         short                   pd_idx;         /* parity disk index */
         short                   qd_idx;         /* 'Q' disk index for raid6 */
@@ -348,6 +350,7 @@ struct raid5_private_data {
          */
         sector_t                reshape_safe;
         int                     previous_raid_disks;
+        short                   generation; /* increments with every reshape */
 
         struct list_head        handle_list; /* stripes needing handling */
         struct list_head        hold_list; /* preread ready stripes */