Allow resize to backup to a file.

To support resizing an array without a spare, mdadm now understands
  --backup-file=
which should point to a file for storing a backup of critical data.
This can be given to --grow which will create the file, or
--assemble which will restore from the file if needed.

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

1 files changed, 2 insertions, 2 deletions

diff --git a/Assemble.c b/Assemble.c
index a8a331e..f38b1a1 100644
--- a/Assemble.c
+++ b/Assemble.c
@@ -31,7 +31,7 @@
 
 int Assemble(struct supertype *st, char *mddev, int mdfd,
 	     mddev_ident_t ident, char *conffile,
-	     mddev_dev_t devlist,
+	     mddev_dev_t devlist, char *backup_file,
 	     int readonly, int runstop,
 	     char *update,
 	     int verbose, int force)
@@ -585,7 +585,7 @@ int Assemble(struct supertype *st, char *mddev, int mdfd,
 				fdlist[i] = -1;
 		}
 		if (!err)
-			err = Grow_restart(st, &info, fdlist, bestcnt);
+			err = Grow_restart(st, &info, fdlist, bestcnt, backup_file);
 		while (i>0) {
 			i--;
 			if (fdlist[i]>=0) close(fdlist[i]);