[PATCH v2 0/5] Add support for I/O priority hints

[Damien Le Moal <dlemoal@kernel.org>]

Linux kernel 6.5 will add support for I/O priority hints, which can be
used (for now) to specify a command duration limit for block devices
supporting this feature.

This patch series extends fio I/O priority options and adds new options
to allow users to specify I/O priority hints.

Changes from v1:
 - Added patch 1
 - Addressed Niklas comments

Damien Le Moal (5):
  os-linux: Cleanup IO priority class and value macros
  os-linux: add initial support for IO priority hints
  options: add priohint option
  cmdprio: Add support for per I/O priority hint
  stats: Add hint information to per priority level stats

 HOWTO.rst          | 32 ++++++++++++++++++++++++++++----
 backend.c          |  9 ++++++---
 cconv.c            |  2 ++
 engines/cmdprio.c  |  9 ++++++---
 engines/cmdprio.h  |  1 +
 engines/io_uring.c | 25 +++++++++++++++++++++++--
 engines/libaio.c   | 21 +++++++++++++++++++++
 fio.1              | 30 +++++++++++++++++++++++++++---
 options.c          | 31 ++++++++++++++++++++++++++++---
 os/os-dragonfly.h  |  4 ++--
 os/os-linux.h      | 27 +++++++++++++++++++--------
 os/os.h            |  7 +++++--
 server.h           |  2 +-
 stat.c             | 10 +++++++---
 thread_options.h   |  3 ++-
 15 files changed, 178 insertions(+), 35 deletions(-)

-- 
2.41.0