Assemble: allow to assemble container with uuid=0:0:0:0

When there are any arrays in config file the spares with
domain not matching any array are not assembled because
auto assembly is not attempted.
Addition of ARRAY line with uuid=0:0:0:0 in config will work
with modified condition for gathering spares.

Signed-off-by: Anna Czarnowska <anna.czarnowska@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>

Assemble.c

@@ -564,7 +564,10 @@ int Assemble(struct supertype *st, char *mddev,
 	}
 
 	/* Check if we found some imsm spares but no members */
-	if (auto_assem && (!st || !st->sb))
+	if ((auto_assem ||
+	     (ident->uuid_set &&
+	      memcmp(uuid_zero, ident->uuid,sizeof(uuid_zero)) == 0)) &&
+	    (!st || !st->sb))
 		for (tmpdev = devlist; tmpdev; tmpdev = tmpdev->next) {
 			if (tmpdev->used != 3)
 				continue;