+static int is_member_busy(char *metadata_version)
+{
+ /* check if the given member array is active */
+ struct mdstat_ent *mdstat = mdstat_read(1, 0);
+ struct mdstat_ent *ent;
+ int busy = 0;
+
+ for (ent = mdstat; ent; ent = ent->next) {
+ if (ent->metadata_version == NULL)
+ continue;
+ if (strncmp(ent->metadata_version, "external:", 9) != 0)
+ continue;
+ if (!is_subarray(&ent->metadata_version[9]))
+ continue;
+ /* Skip first char - it can be '/' or '-' */
+ if (strcmp(&ent->metadata_version[10], metadata_version+1) == 0) {
+ busy = 1;
+ break;
+ }
+ }
+ free_mdstat(mdstat);
+
+ return busy;
+}
+
+static int ident_matches(struct mddev_ident *ident,
+ struct mdinfo *content,
+ struct supertype *tst,
+ char *homehost,
+ char *update, char *devname)
+{
+
+ if (ident->uuid_set && (!update || strcmp(update, "uuid")!= 0) &&
+ same_uuid(content->uuid, ident->uuid, tst->ss->swapuuid)==0) {
+ if (devname)
+ fprintf(stderr, Name ": %s has wrong uuid.\n",
+ devname);
+ return 0;
+ }
+ if (ident->name[0] && (!update || strcmp(update, "name")!= 0) &&
+ name_matches(content->name, ident->name, homehost)==0) {
+ if (devname)
+ fprintf(stderr, Name ": %s has wrong name.\n",
+ devname);
+ return 0;
+ }
+ if (ident->super_minor != UnSet &&
+ ident->super_minor != content->array.md_minor) {
+ if (devname)
+ fprintf(stderr, Name ": %s has wrong super-minor.\n",
+ devname);
+ return 0;
+ }
+ if (ident->level != UnSet &&
+ ident->level != content->array.level) {
+ if (devname)
+ fprintf(stderr, Name ": %s has wrong raid level.\n",
+ devname);
+ return 0;
+ }
+ if (ident->raid_disks != UnSet &&
+ ident->raid_disks!= content->array.raid_disks) {
+ if (devname)
+ fprintf(stderr, Name ": %s requires wrong number of drives.\n",
+ devname);
+ return 0;
+ }
+ if (ident->member && ident->member[0]) {
+ /* content->text_version must match */
+ char *s = strchr(content->text_version+1, '/');
+ if (s == NULL) {
+ if (devname)
+ fprintf(stderr, Name ": %s is not a container and one is required.\n",
+ devname);
+ return 0;
+ } else if (strcmp(ident->member, s+1) != 0) {
+ if (devname)
+ fprintf(stderr, Name ": skipping wrong member %s is %s\n",
+ content->text_version, devname);
+ return 0;
+ }
+ }
+ return 1;
+}
+
+
+int Assemble(struct supertype *st, char *mddev,
+ struct mddev_ident *ident,
+ struct mddev_dev *devlist,
+ char *backup_file, int invalid_backup,