/** mdd_iocontrol
* May be called remotely from mdt_iocontrol_handle or locally from
* mdt_iocontrol. Data may be freeform - remote handling doesn't enforce
* an obd_ioctl_data format (but local ioctl handler does).
* \param cmd - ioc
* \param len - data len
* \param karg - ioctl data, in kernel space
*/
static int mdd_iocontrol(const struct lu_env *env, struct md_device *m,
unsigned int cmd, int len, void *karg)
{
struct mdd_device *mdd;
struct obd_ioctl_data *data = karg;
int rc;
ENTRY;
mdd = lu2mdd_dev(&m->md_lu_dev);
/* Doesn't use obd_ioctl_data */
switch (cmd) {
case OBD_IOC_CHANGELOG_CLEAR: {
struct changelog_setinfo *cs = karg;
rc = mdd_changelog_user_purge(env, mdd, cs->cs_id,
cs->cs_recno);
RETURN(rc);
}
case OBD_IOC_GET_MNTOPT: {
mntopt_t *mntopts = (mntopt_t *)karg;
*mntopts = mdd->mdd_dt_conf.ddp_mntopts;
RETURN(0);
}
case OBD_IOC_START_LFSCK: {
rc = lfsck_start(env, mdd->mdd_bottom,
(struct lfsck_start_param *)karg);
RETURN(rc);
}
case OBD_IOC_STOP_LFSCK: {
rc = lfsck_stop(env, mdd->mdd_bottom,
(struct lfsck_stop *)karg);
RETURN(rc);
}
}
/* Below ioctls use obd_ioctl_data */
if (len != sizeof(*data)) {
CERROR("Bad ioctl size %d\n", len);
RETURN(-EINVAL);
}
if (data->ioc_version != OBD_IOCTL_VERSION) {
CERROR("Bad magic %x != %x\n", data->ioc_version,
OBD_IOCTL_VERSION);
RETURN(-EINVAL);
}
switch (cmd) {
case OBD_IOC_CHANGELOG_REG:
rc = mdd_changelog_user_register(env, mdd, &data->ioc_u32_1);
break;
case OBD_IOC_CHANGELOG_DEREG:
rc = mdd_changelog_user_purge(env, mdd, data->ioc_u32_1,
MCUD_UNREGISTER);
break;
default:
rc = -ENOTTY;
}
RETURN (rc);
}
/**
* Notify all devices in server stack about recovery completion.
*
* This function calls ldo_recovery_complete() for all lower devices in the
* server stack so they will be prepared for normal operations.
*
* \param[in] env execution environment
* \param[in] ofd OFD device
*
* \retval 0 if successful
* \retval negative value on error
*/
int ofd_postrecov(const struct lu_env *env, struct ofd_device *ofd)
{
struct lu_device *ldev = &ofd->ofd_dt_dev.dd_lu_dev;
struct lfsck_start_param lsp;
int rc;
CDEBUG(D_HA, "%s: recovery is over\n", ofd_name(ofd));
lsp.lsp_start = NULL;
lsp.lsp_index_valid = 0;
rc = lfsck_start(env, ofd->ofd_osd, &lsp);
if (rc != 0 && rc != -EALREADY)
CWARN("%s: auto trigger paused LFSCK failed: rc = %d\n",
ofd_name(ofd), rc);
return ldev->ld_ops->ldo_recovery_complete(env, ldev);
}
