vserver 1.9.5.x5

[linux-2.6.git] / include / linux / raid / raid5.h

diff --git a/include/linux/raid/raid5.h b/include/linux/raid/raid5.h
index baf88d2..d63ddcb 100644 (file)
--- a/include/linux/raid/raid5.h
+++ b/include/linux/raid/raid5.h
@@ -152,6 +152,7 @@ struct stripe_head {
 #define        R5_Wantread     4       /* want to schedule a read */
 #define        R5_Wantwrite    5
 #define        R5_Syncio       6       /* this io need to be accounted as resync io */
+#define        R5_Overlap      7       /* There is a pending overlapping request on this block */
 
 /*
  * Write method
@@ -219,6 +220,7 @@ struct raid5_private_data {
        atomic_t                active_stripes;
        struct list_head        inactive_list;
        wait_queue_head_t       wait_for_stripe;
+       wait_queue_head_t       wait_for_overlap;
        int                     inactive_blocked;       /* release of inactive stripes blocked,
                                                         * waiting for 25% to be free
                                                         */