Reorganise Assemble code somewhat.

We make sure all devices can are consistent before doing any --update
This saves us from updating some but not all of an array, and then
aborting.

It also means we can backtrack on out decisions, which we might want to
do later.

Signed-off-by: Neil Brown <neilb@suse.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/mdadm.h b/mdadm.h
index ecaacd4..94e4708 100644
--- a/mdadm.h
+++ b/mdadm.h
@@ -182,6 +182,7 @@ typedef struct mddev_dev_s {
 				 */
 	char writemostly;
 	char re_add;
+	char used;		/* set when used */
 	struct mddev_dev_s *next;
 } *mddev_dev_t;