1 files changed, 16 insertions, 0 deletions

diff --git a/include/linux/raid/raid5.h b/include/linux/raid/raid5.h
index d8286db60b96..b99d354f6128 100644
--- a/include/linux/raid/raid5.h
+++ b/include/linux/raid/raid5.h
@@ -145,6 +145,22 @@ struct stripe_head {
                 unsigned long   flags;
         } dev[1]; /* allocated with extra space depending of RAID geometry */
 };
+
+/* stripe_head_state - collects and tracks the dynamic state of a stripe_head
+ *     for handle_stripe.  It is only valid under spin_lock(sh->lock);
+ */
+struct stripe_head_state {
+        int syncing, expanding, expanded;
+        int locked, uptodate, to_read, to_write, failed, written;
+        int non_overwrite;
+        int failed_num;
+};
+
+/* r6_state - extra state data only relevant to r6 */
+struct r6_state {
+        int p_failed, q_failed, qd_idx, failed_num[2];
+};
+
 /* Flags */
 #define R5_UPTODATE     0       /* page contains current data */
 #define R5_LOCKED       1       /* IO has been submitted on "req" */