Allow default metadata to be specified in mdadm.conf

CREATE metadata=1
in mdadm.conf will cause version-1 superblocks to be the default.

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

1 files changed, 10 insertions, 0 deletions

diff --git a/config.c b/config.c
index 5accf15..20dc725 100644
--- a/config.c
+++ b/config.c
@@ -354,6 +354,16 @@ static void createline(char *line)
 				fprintf(stderr, Name ": unrecognised CREATE mode %s\n",
 					w+5);
 			}
+		} else if (strncasecmp(w, "metadata=", 9) == 0) {
+			/* style of metadata to use by default */
+			int i;
+			for (i=0; superlist[i] && !createinfo.supertype; i++)
+				createinfo.supertype =
+					superlist[i]->match_metadata_desc(w+9);
+			if (!createinfo.supertype)
+				fprintf(stderr, Name ": metadata format %s unknown, ignoring\n",
+					w+9);
+
 		} else {
 			fprintf(stderr, Name ": unrecognised word on CREATE line: %s\n",
 				w);