[PATCH v2 0/9] Support zoned devices with gap zones

[Bart Van Assche <bvanassche@acm.org>]

Hi Martin,

In ZBC-2 support has been improved for zones with a size that is not a power
of two by allowing host-managed devices to report gap zones. This patch adds
support for zoned devices for which data zones and gap zones alternate if the
distance between zone start LBAs is a power of two.

Please consider this patch series for kernel v5.19.

Thanks,

Bart.

Changes compared to v1:
- Made this patch series compatible with the zone querying code in BTRFS.
- Addressed Damien's off-list review comments.
- Added patch "Return early in sd_zbc_check_zoned_characteristics()" to this
  series.

Bart Van Assche (9):
  scsi: sd_zbc: Improve source code documentation
  scsi: sd_zbc: Verify that the zone size is a power of two
  scsi: sd_zbc: Use logical blocks as unit when querying zones
  scsi: sd_zbc: Introduce struct zoned_disk_info
  scsi: sd_zbc: Return early in sd_zbc_check_zoned_characteristics()
  scsi: sd_zbc: Hide gap zones
  scsi_debug: Fix a typo
  scsi_debug: Rename zone type constants
  scsi_debug: Add gap zone support

 drivers/scsi/scsi_debug.c | 149 ++++++++++++++++++------
 drivers/scsi/sd.h         |  32 ++++--
 drivers/scsi/sd_zbc.c     | 236 +++++++++++++++++++++++++++++---------
 include/scsi/scsi_proto.h |   9 +-
 4 files changed, 331 insertions(+), 95 deletions(-)