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-rw-r--r--mapfile.c32
1 files changed, 31 insertions, 1 deletions
diff --git a/mapfile.c b/mapfile.c
index 601c4cc..a3038be 100644
--- a/mapfile.c
+++ b/mapfile.c
@@ -297,6 +297,34 @@ struct map_ent *map_by_name(struct map_ent **map, char *name)
return NULL;
}
+/* sets the proper subarray and container_dev according to the metadata
+ * version super_by_fd does this automatically, this routine is meant as
+ * a supplement for guess_super()
+ */
+static void set_member_info(struct supertype *st, struct mdstat_ent *ent)
+{
+ char version[strlen(ent->metadata_version)+1];
+
+ st->subarray[0] = '\0';
+
+ if (strncmp(ent->metadata_version, "external:", 9) != 0)
+ return;
+
+ strcpy(version, ent->metadata_version);
+
+ if (is_subarray(&version[9])) {
+ char *subarray = strrchr(version, '/');
+ char *name = &version[10];
+
+ if (!subarray)
+ return;
+ *subarray++ = '\0';
+
+ st->container_dev = devname2devnum(name);
+ strncpy(st->subarray, subarray, sizeof(st->subarray));
+ }
+}
+
void RebuildMap(void)
{
struct mdstat_ent *mdstat = mdstat_read(0, 0);
@@ -337,8 +365,10 @@ void RebuildMap(void)
st = guess_super(dfd);
if ( st == NULL)
ok = -1;
- else
+ else {
+ set_member_info(st, md);
ok = st->ss->load_super(st, dfd, NULL);
+ }
close(dfd);
if (ok != 0)
continue;