[PATCH 2/10] dm: Correct clone info initialisation

[Joe Thornber]

Initialize the clone-info's index to the original bio's index.
Required to properly handle stacking DM devices. [Kevin Corry]
--- diff/drivers/md/dm.c	2002-12-30 10:17:13.000000000 +0000
+++ source/drivers/md/dm.c	2003-01-02 11:10:22.000000000 +0000
@@ -475,7 +475,7 @@
 	ci.io->md = md;
 	ci.sector = bio->bi_sector;
 	ci.sector_count = bio_sectors(bio);
-	ci.idx = 0;
+	ci.idx = bio->bi_idx;
 
 	atomic_inc(&md->pending);
 	while (ci.sector_count)