linux-ext4 - [PATCH 00/11] Remove remaining parts of congestion tracking code.

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Message-ID: <164447124918.23354.17858831070003318849.stgit@noble.brown>
Date:   Thu, 10 Feb 2022 16:37:52 +1100
From:   NeilBrown <neilb@...e.de>
To:     Andrew Morton <akpm@...ux-foundation.org>, Jan Kara <jack@...e.cz>,
        Wu Fengguang <fengguang.wu@...el.com>,
        Jaegeuk Kim <jaegeuk@...nel.org>, Chao Yu <chao@...nel.org>,
        Jeff Layton <jlayton@...nel.org>,
        Ilya Dryomov <idryomov@...il.com>,
        Miklos Szeredi <miklos@...redi.hu>,
        Trond Myklebust <trond.myklebust@...merspace.com>,
        Anna Schumaker <anna.schumaker@...app.com>,
        Ryusuke Konishi <konishi.ryusuke@...il.com>,
        "Darrick J. Wong" <djwong@...nel.org>,
        Philipp Reisner <philipp.reisner@...bit.com>,
        Lars Ellenberg <lars.ellenberg@...bit.com>,
        Paolo Valente <paolo.valente@...aro.org>,
        Jens Axboe <axboe@...nel.dk>
Cc:     linux-doc@...r.kernel.org, linux-mm@...ck.org,
        linux-nilfs@...r.kernel.org, linux-nfs@...r.kernel.org,
        linux-fsdevel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net, linux-ext4@...r.kernel.org,
        ceph-devel@...r.kernel.org, drbd-dev@...ts.linbit.com,
        linux-kernel@...r.kernel.org, linux-block@...r.kernel.org
Subject: [PATCH 00/11]  Remove remaining parts of congestion tracking code.

Here is a refresh of my "remove congestion tracking" series.

It makes some small changes to readahead so that the effect of the
inode_read_congested() test in readahead can be duplicated in the
filesystem.  fuse uses this.
It add some documentation for readahead, and for that to work, it
cleans up related doco a bit.

Andrew: please drop the version of this that is currently in your tree
even if you don't take this.  The changes to fuse/nfs/ceph are not
appropriate.

Thanks,
NeilBrown

---

NeilBrown (11):
      DOC: convert 'subsection' to 'section' in gfp.h
      MM: document and polish read-ahead code.
      MM: improve cleanup when ->readpages doesn't process all pages.
      fuse: remove reliance on bdi congestion
      nfs: remove reliance on bdi congestion
      ceph: remove reliance on bdi congestion
      Remove inode_congested()
      Remove bdi_congested() and wb_congested() and related functions
      f2fs: replace congestion_wait() calls with io_schedule_timeout()
      block/bfq-iosched.c: use "false" rather than "BLK_RW_ASYNC"
      Remove congestion tracking framework.


 Documentation/core-api/mm-api.rst |  19 ++++-
 Documentation/filesystems/vfs.rst |  16 ++--
 block/bfq-iosched.c               |   2 +-
 drivers/block/drbd/drbd_int.h     |   3 -
 drivers/block/drbd/drbd_req.c     |   3 +-
 fs/ceph/addr.c                    |  22 +++---
 fs/ceph/super.c                   |   1 +
 fs/ceph/super.h                   |   1 +
 fs/ext2/ialloc.c                  |   5 --
 fs/f2fs/compress.c                |   4 +-
 fs/f2fs/data.c                    |   3 +-
 fs/f2fs/f2fs.h                    |   6 ++
 fs/f2fs/segment.c                 |   8 +-
 fs/f2fs/super.c                   |   6 +-
 fs/fs-writeback.c                 |  37 ---------
 fs/fuse/control.c                 |  17 ----
 fs/fuse/dev.c                     |   8 --
 fs/fuse/file.c                    |  17 ++++
 fs/nfs/write.c                    |  14 +++-
 fs/nilfs2/segbuf.c                |  15 ----
 fs/xfs/xfs_buf.c                  |   3 -
 include/linux/backing-dev-defs.h  |   8 --
 include/linux/backing-dev.h       |  50 ------------
 include/linux/fs.h                |   9 ++-
 include/linux/nfs_fs_sb.h         |   1 +
 include/trace/events/writeback.h  |  28 -------
 mm/backing-dev.c                  |  57 --------------
 mm/fadvise.c                      |   5 +-
 mm/readahead.c                    | 126 +++++++++++++++++++++++++++---
 mm/vmscan.c                       |  21 +----
 30 files changed, 214 insertions(+), 301 deletions(-)

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