int Update_subarray(char *dev, char *subarray, char *update, struct mddev_ident *ident, int quiet)
{
struct supertype supertype, *st = &supertype;
int fd, rv = 2;
memset(st, 0, sizeof(*st));
fd = open_subarray(dev, subarray, st, quiet);
if (fd < 0)
return 2;
if (!st->ss->update_subarray) {
if (!quiet)
fprintf(stderr,
Name ": Operation not supported for %s metadata\n",
st->ss->name);
goto free_super;
}
if (mdmon_running(st->devnum))
st->update_tail = &st->updates;
rv = st->ss->update_subarray(st, subarray, update, ident);
if (rv) {
if (!quiet)
fprintf(stderr, Name ": Failed to update %s of subarray-%s in %s\n",
update, subarray, dev);
} else if (st->update_tail)
flush_metadata_updates(st);
else
st->ss->sync_metadata(st);
if (rv == 0 && strcmp(update, "name") == 0 && !quiet)
fprintf(stderr,
Name ": Updated subarray-%s name from %s, UUIDs may have changed\n",
subarray, dev);
free_super:
st->ss->free_super(st);
close(fd);
return rv;
}
int Kill_subarray(char *dev, char *subarray, int verbose)
{
/* Delete a subarray out of a container, the subarry must be
* inactive. The subarray string must be a subarray index
* number.
*
* 0 = successfully deleted subarray from all container members
* 1 = failed to sync metadata to one or more devices
* 2 = failed to find the container, subarray, or other resource
* issue
*/
struct supertype supertype, *st = &supertype;
int fd, rv = 2;
memset(st, 0, sizeof(*st));
fd = open_subarray(dev, subarray, st, verbose < 0);
if (fd < 0)
return 2;
if (!st->ss->kill_subarray) {
if (verbose >= 0)
pr_err("Operation not supported for %s metadata\n",
st->ss->name);
goto free_super;
}
if (is_subarray_active(subarray, st->devname)) {
if (verbose >= 0)
pr_err("Subarray-%s still active, aborting\n",
subarray);
goto free_super;
}
if (mdmon_running(st->devnum))
st->update_tail = &st->updates;
/* ok we've found our victim, drop the axe */
rv = st->ss->kill_subarray(st);
if (rv) {
if (verbose >= 0)
pr_err("Failed to delete subarray-%s from %s\n",
subarray, dev);
goto free_super;
}
/* FIXME these routines do not report success/failure */
if (st->update_tail)
flush_metadata_updates(st);
else
st->ss->sync_metadata(st);
if (verbose >= 0)
pr_err("Deleted subarray-%s from %s, UUIDs may have changed\n",
subarray, dev);
rv = 0;
free_super:
st->ss->free_super(st);
close(fd);
return rv;
}
