[GIT PULL] Remove write streams support

[Jens Axboe <axboe@kernel.dk>]

Hi Linus,

This removes the write streams support in NVMe. No vendor ever really
shipped working support for this, and they are not interested in
supporting it.

With the NVMe support gone, we have nothing in the tree that supports
this. Remove passing around of the hints.

The only discussion point in this patchset imho is the fact that the
file specific write hint setting/getting fcntl helpers will now return
-1/EINVAL like they did before we supported write hints. No known
applications use these functions, I only know of one prototype that I
help do for RocksDB, and that's not used. That said, with a change like
this, it's always a bit controversial. Alternatively, we could just make
them return 0 and pretend it worked. It's placement based hints after
all.

Diffstat manually generated, as git pull-request doesn't like that it's
based on merges. It will merge cleanly with your current tree.

Please pull!


The following changes since commit 97939610b893de068c82c347d06319cd231a4602:

  block: remove bio_devname (2022-03-07 06:42:33 -0700)

are available in the Git repository at:

  git://git.kernel.dk/linux-block.git tags/for-5.18/write-streams-2022-03-18

for you to fetch changes up to 7b12e49669c99f63bc12351c57e581f1f14d4adf:

  fs: remove fs.f_write_hint (2022-03-08 17:55:03 -0700)

----------------------------------------------------------------
for-5.18/write-streams-2022-03-18

----------------------------------------------------------------
Christoph Hellwig (4):
      nvme: remove support or stream based temperature hint
      block: remove the per-bio/request write hint
      fs: remove kiocb.ki_hint
      fs: remove fs.f_write_hint

Jens Axboe (3):
      Merge branch 'for-5.18/block' into for-5.18/write-streams
      Merge branch 'for-5.18/drivers' into for-5.18/write-streams
      Merge branch 'for-5.18/alloc-cleanups' into for-5.18/write-streams

 block/bio.c                 |   2 -
 block/blk-crypto-fallback.c |   1 -
 block/blk-merge.c           |  14 -----
 block/blk-mq-debugfs.c      |  24 --------
 block/blk-mq.c              |   1 -
 block/bounce.c              |   1 -
 block/fops.c                |   3 -
 drivers/md/raid1.c          |   2 -
 drivers/md/raid5-ppl.c      |  28 +---------
 drivers/md/raid5.c          |   6 --
 drivers/nvme/host/core.c    | 143 -----------------------------------------------
 drivers/nvme/host/nvme.h    |   1 -
 fs/aio.c                    |   1 -
 fs/btrfs/extent_io.c        |   1 -
 fs/buffer.c                 |  13 ++---
 fs/cachefiles/io.c          |   2 -
 fs/direct-io.c              |   3 -
 fs/ext4/page-io.c           |   5 +-
 fs/f2fs/data.c              |   2 -
 fs/f2fs/file.c              |   6 --
 fs/fcntl.c                  |  18 ------
 fs/gfs2/lops.c              |   1 -
 fs/io_uring.c               |   1 -
 fs/iomap/buffered-io.c      |   2 -
 fs/iomap/direct-io.c        |   1 -
 fs/mpage.c                  |   1 -
 fs/open.c                   |   1 -
 fs/zonefs/super.c           |   1 -
 include/linux/blk_types.h   |   1 -
 include/linux/blkdev.h      |   3 -
 include/linux/fs.h          |  21 -------
 include/trace/events/f2fs.h |   3 +-
 32 files changed, 10 insertions(+), 303 deletions(-)

-- 
Jens Axboe