Symbol: IO_SPAN
usr/src/uts/common/fs/zfs/vdev_queue.c
538
#define IO_GAP(fio, lio) (-IO_SPAN(lio, fio))
usr/src/uts/common/fs/zfs/vdev_queue.c
587
IO_SPAN(dio, last) <= zfs_vdev_aggregation_limit &&
usr/src/uts/common/fs/zfs/vdev_queue.c
611
(IO_SPAN(first, dio) <= zfs_vdev_aggregation_limit ||
usr/src/uts/common/fs/zfs/vdev_queue.c
664
size = IO_SPAN(first, last);