[PATCH 00/13] Pass data temperature information to zoned UFS devices

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Hi Jens,

Zoned UFS vendors need the data temperature information. Hence this patch
series that restores write hint information in F2FS and in the block layer.
The SCSI disk (sd) driver is modified such that it passes write hint
information to SCSI devices via the GROUP NUMBER field.

Please consider this patch series for the next merge window.

Thanks,

Bart.

Bart Van Assche (13):
  fs/f2fs: Restore the whint_mode mount option
  fs: Restore support for F_GET_FILE_RW_HINT and F_SET_FILE_RW_HINT
  fs: Restore kiocb.ki_hint
  block: Restore write hint support
  scsi: core: Query the Block Limits Extension VPD page
  scsi_proto: Add struct io_group_descriptor
  sd: Translate data lifetime information
  scsi_debug: Reduce code duplication
  scsi_debug: Support the block limits extension VPD page
  scsi_debug: Rework page code error handling
  scsi_debug: Rework subpage code error handling
  scsi_debug: Implement the IO Advice Hints Grouping mode page
  scsi_debug: Maintain write statistics per group number

 Documentation/filesystems/f2fs.rst |  70 ++++++++++
 block/bio.c                        |   2 +
 block/blk-crypto-fallback.c        |   1 +
 block/blk-merge.c                  |  14 ++
 block/blk-mq.c                     |   2 +
 block/bounce.c                     |   1 +
 block/fops.c                       |   3 +
 drivers/scsi/scsi.c                |   2 +
 drivers/scsi/scsi_debug.c          | 202 +++++++++++++++++++----------
 drivers/scsi/scsi_sysfs.c          |  10 ++
 drivers/scsi/sd.c                  |  78 ++++++++++-
 drivers/scsi/sd.h                  |   2 +
 fs/aio.c                           |   1 +
 fs/buffer.c                        |  13 +-
 fs/cachefiles/io.c                 |   2 +
 fs/direct-io.c                     |   1 +
 fs/f2fs/data.c                     |   2 +
 fs/f2fs/f2fs.h                     |   9 ++
 fs/f2fs/file.c                     |   6 +
 fs/f2fs/segment.c                  |  95 ++++++++++++++
 fs/f2fs/super.c                    |  32 ++++-
 fs/fcntl.c                         |  18 +++
 fs/iomap/buffered-io.c             |   2 +
 fs/iomap/direct-io.c               |   1 +
 fs/mpage.c                         |   1 +
 fs/open.c                          |   1 +
 include/linux/blk-mq.h             |   1 +
 include/linux/blk_types.h          |   1 +
 include/linux/fs.h                 |  21 +++
 include/scsi/scsi_device.h         |   1 +
 include/scsi/scsi_proto.h          |  40 ++++++
 include/trace/events/f2fs.h        |   5 +-
 io_uring/rw.c                      |   1 +
 33 files changed, 566 insertions(+), 75 deletions(-)




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