static int
vdev_disk_off_notify(ldi_handle_t lh, ldi_ev_cookie_t ecookie, void *arg,
void *ev_data)
{
vdev_t *vd = (vdev_t *)arg;
vdev_disk_t *dvd = vd->vdev_tsd;
/*
* Ignore events other than offline.
*/
if (strcmp(ldi_ev_get_type(ecookie), LDI_EV_OFFLINE) != 0)
return (LDI_EV_SUCCESS);
/*
* All LDI handles must be closed for the state change to succeed, so
* call on vdev_disk_close() to do this.
*
* We inform vdev_disk_close that it is being called from offline
* notify context so it will defer cleanup of LDI event callbacks and
* freeing of vd->vdev_tsd to the offline finalize or a reopen.
*/
dvd->vd_ldi_offline = B_TRUE;
vdev_disk_close(vd);
/*
* Now that the device is closed, request that the spa_async_thread
* mark the device as REMOVED and notify FMA of the removal.
*/
zfs_post_remove(vd->vdev_spa, vd);
vd->vdev_remove_wanted = B_TRUE;
spa_async_request(vd->vdev_spa, SPA_ASYNC_REMOVE);
return (LDI_EV_SUCCESS);
}
/* ARGSUSED */
static void
vdev_disk_off_finalize(ldi_handle_t lh, ldi_ev_cookie_t ecookie,
int ldi_result, void *arg, void *ev_data)
{
vdev_t *vd = (vdev_t *)arg;
/*
* Ignore events other than offline.
*/
if (strcmp(ldi_ev_get_type(ecookie), LDI_EV_OFFLINE) != 0)
return;
/*
* We have already closed the LDI handle in notify.
* Clean up the LDI event callbacks and free vd->vdev_tsd.
*/
vdev_disk_free(vd);
/*
* Request that the vdev be reopened if the offline state change was
* unsuccessful.
*/
if (ldi_result != LDI_EV_SUCCESS) {
vd->vdev_probe_wanted = B_TRUE;
spa_async_request(vd->vdev_spa, SPA_ASYNC_PROBE);
}
}
/* ARGSUSED */
static void
vdev_disk_dgrd_finalize(ldi_handle_t lh, ldi_ev_cookie_t ecookie,
int ldi_result, void *arg, void *ev_data)
{
vdev_t *vd = (vdev_t *)arg;
/*
* Ignore events other than degrade.
*/
if (strcmp(ldi_ev_get_type(ecookie), LDI_EV_DEGRADE) != 0)
return;
/*
* Degrade events always succeed. Mark the vdev as degraded.
* This status is purely informative for the user.
*/
(void) vdev_degrade(vd->vdev_spa, vd->vdev_guid, 0);
}
