Function vdev_label_read

freebsd/contrib/openzfs/module/zfs/vdev_label.c:186–199

}

static void
vdev_label_read(zio_t *zio, vdev_t *vd, int l, abd_t *buf, uint64_t offset,
    uint64_t size, zio_done_func_t *done, void *private, int flags)
{
	ASSERT(
	    spa_config_held(zio->io_spa, SCL_STATE, RW_READER) == SCL_STATE ||
	    spa_config_held(zio->io_spa, SCL_STATE, RW_WRITER) == SCL_STATE);
	ASSERT(flags & ZIO_FLAG_CONFIG_WRITER);

	zio_nowait(zio_read_phys(zio, vd,
	    vdev_label_offset(vd->vdev_psize, l, offset),
	    size, buf, ZIO_CHECKSUM_LABEL, done, private,
	    ZIO_PRIORITY_SYNC_READ, flags, B_TRUE));
}

void
vdev_label_write(zio_t *zio, vdev_t *vd, int l, abd_t *buf, uint64_t offset,