Function vdev_get_stats_ex

freebsd/contrib/openzfs/module/zfs/vdev.c:4194–4266

}

void
vdev_get_stats_ex(vdev_t *vd, vdev_stat_t *vs, vdev_stat_ex_t *vsx)
{
	vdev_t *tvd = vd->vdev_top;
	mutex_enter(&vd->vdev_stat_lock);
	if (vs) {
		bcopy(&vd->vdev_stat, vs, sizeof (*vs));
		vs->vs_timestamp = gethrtime() - vs->vs_timestamp;
		vs->vs_state = vd->vdev_state;
		vs->vs_rsize = vdev_get_min_asize(vd);

		if (vd->vdev_ops->vdev_op_leaf) {
			vs->vs_rsize += VDEV_LABEL_START_SIZE +
			    VDEV_LABEL_END_SIZE;
			/*
			 * Report initializing progress. Since we don't
			 * have the initializing locks held, this is only
			 * an estimate (although a fairly accurate one).
			 */
			vs->vs_initialize_bytes_done =
			    vd->vdev_initialize_bytes_done;
			vs->vs_initialize_bytes_est =
			    vd->vdev_initialize_bytes_est;
			vs->vs_initialize_state = vd->vdev_initialize_state;
			vs->vs_initialize_action_time =
			    vd->vdev_initialize_action_time;

			/*
			 * Report manual TRIM progress. Since we don't have
			 * the manual TRIM locks held, this is only an
			 * estimate (although fairly accurate one).
			 */
			vs->vs_trim_notsup = !vd->vdev_has_trim;
			vs->vs_trim_bytes_done = vd->vdev_trim_bytes_done;
			vs->vs_trim_bytes_est = vd->vdev_trim_bytes_est;
			vs->vs_trim_state = vd->vdev_trim_state;
			vs->vs_trim_action_time = vd->vdev_trim_action_time;

			/* Set when there is a deferred resilver. */
			vs->vs_resilver_deferred = vd->vdev_resilver_deferred;
		}

		/*
		 * Report expandable space on top-level, non-auxiliary devices
		 * only. The expandable space is reported in terms of metaslab
		 * sized units since that determines how much space the pool
		 * can expand.
		 */
		if (vd->vdev_aux == NULL && tvd != NULL) {
			vs->vs_esize = P2ALIGN(
			    vd->vdev_max_asize - vd->vdev_asize,
			    1ULL << tvd->vdev_ms_shift);
		}

		vs->vs_configured_ashift = vd->vdev_top != NULL
		    ? vd->vdev_top->vdev_ashift : vd->vdev_ashift;
		vs->vs_logical_ashift = vd->vdev_logical_ashift;
		vs->vs_physical_ashift = vd->vdev_physical_ashift;