[PATCHv11 0/9] write hints with nvme fdp and scsi streams

[Keith Busch]

From: Keith Busch <kbusch at kernel.org>

Changes from v10:

  Fixed FDP max handle size calculations (wrong type)

  Defined and used FDP constants instead of literal numbers

  Moved io_uring write_hint to the end of the SQE so as not to overlap
  with other defined fields except uring_cmd

  Default partition split so partition one gets all the write hints
  exclusively

  Folded in the fix for stacking block stream feature for nvme-multipath
  (from hch xfs-zoned-streams branch)

Kanchan Joshi (2):
  io_uring: enable per-io hinting capability
  nvme: enable FDP support

Keith Busch (7):
  block: use generic u16 for write hints
  block: introduce max_write_hints queue limit
  statx: add write hint information
  block: allow ability to limit partition write hints
  block, fs: add write hint to kiocb
  block: export placement hint feature
  scsi: set permanent stream count in block limits

 Documentation/ABI/stable/sysfs-block | 14 ++++++
 block/bdev.c                         | 22 +++++++++
 block/blk-settings.c                 |  5 ++
 block/blk-sysfs.c                    |  6 +++
 block/fops.c                         | 31 +++++++++++--
 block/partitions/core.c              | 45 +++++++++++++++++-
 drivers/nvme/host/core.c             | 69 ++++++++++++++++++++++++++++
 drivers/nvme/host/multipath.c        |  3 +-
 drivers/nvme/host/nvme.h             |  5 ++
 drivers/scsi/sd.c                    |  2 +
 fs/stat.c                            |  1 +
 include/linux/blk-mq.h               |  3 +-
 include/linux/blk_types.h            |  4 +-
 include/linux/blkdev.h               | 15 ++++++
 include/linux/fs.h                   |  1 +
 include/linux/nvme.h                 | 37 +++++++++++++++
 include/linux/stat.h                 |  1 +
 include/uapi/linux/io_uring.h        |  4 ++
 include/uapi/linux/stat.h            |  3 +-
 io_uring/io_uring.c                  |  2 +
 io_uring/rw.c                        |  2 +-
 21 files changed, 263 insertions(+), 12 deletions(-)

-- 
2.43.5