X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Flinux%2Fraid%2Fraid10.h;h=c41e56a7c090801f401f97e116986204a5fb728d;hb=16c70f8c1b54b61c3b951b6fb220df250fe09b32;hp=b1103298a8c2cb043cd7c56d4a32b694463379e7;hpb=4e76c8a9fa413ccc09d3f7f664183dcce3555d57;p=linux-2.6.git

diff --git a/include/linux/raid/raid10.h b/include/linux/raid/raid10.h
index b1103298a..c41e56a7c 100644
--- a/include/linux/raid/raid10.h
+++ b/include/linux/raid/raid10.h
@@ -24,11 +24,16 @@ struct r10_private_data_s {
 	int 			far_copies;   /* number of copies layed out
 					       * at large strides across drives
 					       */
+	int			far_offset;   /* far_copies are offset by 1 stripe
+					       * instead of many
+					       */
 	int			copies;	      /* near_copies * far_copies.
 					       * must be <= raid_disks
 					       */
 	sector_t		stride;	      /* distance between far copies.
-					       * This is size / far_copies
+					       * This is size / far_copies unless
+					       * far_offset, in which case it is
+					       * 1 stripe.
 					       */
 
 	int chunk_shift; /* shift from chunks to sectors */