Allow metadata handler to report that it doesn't record homehost.

For now, this means that the lack of a homehost doesn't always prevent
assembly.
Soon we will allow assembly anyway, but have different messages if
homehost isn't supported.

1 files changed, 1 insertions, 2 deletions

diff --git a/mdadm.h b/mdadm.h
index 5bc41e8..7c73b6a 100644
--- a/mdadm.h
+++ b/mdadm.h
@@ -446,8 +446,7 @@ extern struct superswitch {
 	void (*getinfo_super)(struct supertype *st, struct mdinfo *info);
 
 	/* Check if the given metadata is flagged as belonging to "this"
-	 * host.  For arrays that don't determine a minor-number, this
-	 * can always be true (??)
+	 * host.  0 for 'no', 1 for 'yes', -1 for "Don't record homehost"
 	 */
 	int (*match_home)(struct supertype *st, char *homehost);