Function vdev_trim_simple

freebsd/contrib/openzfs/module/zfs/vdev_trim.c:1654–1697

* A wrapper which calls vdev_trim_ranges(). It is intended to be called * on leaf vdevs. */

 * on leaf vdevs.
 */
int
vdev_trim_simple(vdev_t *vd, uint64_t start, uint64_t size)
{
	trim_args_t		ta;
	range_seg64_t 		physical_rs;
	int			error;
	physical_rs.rs_start = start;
	physical_rs.rs_end = start + size;

	ASSERT(vdev_is_concrete(vd));
	ASSERT(vd->vdev_ops->vdev_op_leaf);
	ASSERT(!vd->vdev_detached);
	ASSERT(!vd->vdev_top->vdev_removing);

	bzero(&ta, sizeof (ta));
	ta.trim_vdev = vd;
	ta.trim_tree = range_tree_create(NULL, RANGE_SEG64, NULL, 0, 0);
	ta.trim_type = TRIM_TYPE_SIMPLE;
	ta.trim_extent_bytes_max = zfs_trim_extent_bytes_max;
	ta.trim_extent_bytes_min = SPA_MINBLOCKSIZE;
	ta.trim_flags = 0;

	ASSERT3U(physical_rs.rs_end, >=, physical_rs.rs_start);

	if (physical_rs.rs_end > physical_rs.rs_start) {
		range_tree_add(ta.trim_tree, physical_rs.rs_start,
		    physical_rs.rs_end - physical_rs.rs_start);
	} else {
		ASSERT3U(physical_rs.rs_end, ==, physical_rs.rs_start);
	}

	error = vdev_trim_ranges(&ta);

	mutex_enter(&vd->vdev_trim_io_lock);
	while (vd->vdev_trim_inflight[TRIM_TYPE_SIMPLE] > 0) {
		cv_wait(&vd->vdev_trim_io_cv, &vd->vdev_trim_io_lock);
	}
	mutex_exit(&vd->vdev_trim_io_lock);

	range_tree_vacate(ta.trim_tree, NULL, NULL);
	range_tree_destroy(ta.trim_tree);

	return (error);
}

EXPORT_SYMBOL(vdev_trim);
EXPORT_SYMBOL(vdev_trim_stop);