[PATCHv10 0/9] write hints with nvme fdp, scsi streams

[Keith Busch]

From: Keith Busch <kbusch at kernel.org>

Changes from v9:

  Document the partition hint mask

  Use bitmap_alloc API

  Fixup bitmap memory leak

  Return invalid value if user requests an invalid write hint

  Added and exported a block device feature flag for indicating generic
  placement hint support

  Added statx write hint max field

  Added BUILD_BUG_ON check for new io_uring SQE fields.

  Added reviews

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 | 13 +++++
 block/bdev.c                         | 18 ++++++
 block/blk-settings.c                 |  5 ++
 block/blk-sysfs.c                    |  6 ++
 block/fops.c                         | 31 +++++++++-
 block/partitions/core.c              | 44 ++++++++++++++-
 drivers/nvme/host/core.c             | 84 ++++++++++++++++++++++++++++
 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                 | 19 +++++++
 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                        |  3 +-
 20 files changed, 253 insertions(+), 11 deletions(-)

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2.43.5