linux-kernel - [GIT PULL] 9p patches for 6.4 merge window

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Message-ID: <ZFL+Pg3IGWeLsQOo@7e9e31583646>
Date:   Thu, 4 May 2023 00:37:18 +0000
From:   Eric Van Hensbergen <ericvh@...nel.org>
To:     torvalds@...ux-foundation.org
Cc:     v9fs@...ts.linux.dev, v9fs-developer@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org
Subject: [GIT PULL] 9p patches for 6.4 merge window

The following changes since commit fe15c26ee26efa11741a7b632e9f23b01aca4cc6:

  Linux 6.3-rc1 (2023-03-05 14:52:03 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs.git tags/9p-6.4-for-linus

for you to fetch changes up to 21e26d5e54ab7cfe6b488fd27d4d70956d07e03b:

  fs/9p: Fix bit operation logic error (2023-04-28 16:59:26 +0000)

----------------------------------------------------------------
9p patches for 6.4 merge window

This pull request includes a number of patches that didn't quite make
the cut last merge window while we addressed some outstanding issues
and review comments.  It includes some new caching modes for those that
only want readahead caches and reworks how we do writeback caching so we
are not keeping extra references around which both causes performance problems
and uses lots of additional resources on the server.

It also includes a new flag to force disabling of xattrs which can also
cause major performance issues, particularly if the underlying filesystem
on the server doesn't support them.

Finally it adds a couple of additional mount options to better support
directio and enabling caches when the server doesn't support qid.version.

There was one late-breaking bug report that has also been included as its
own patch where I forgot to propagate an embarassing bit-logic fix to the
various variations of open.  Since that was only added to for-next a week
ago, if you would like to not include it, I can include it in the first
round of fixes for -rc2.

Signed-off-by: Eric Van Hensbergen <ericvh@...nel.org>

----------------------------------------------------------------
Eric Van Hensbergen (8):
      fs/9p: Consolidate file operations and add readahead and writeback
      fs/9p: Remove unnecessary superblock flags
      fs/9p: allow disable of xattr support on mount
      9p: Add additional debug flags and open modes
      fs/9p: Add new mount modes
      fs/9p: remove writeback fid and fix per-file modes
      fs/9p: Rework cache modes and add new options to Documentation
      fs/9p: Fix bit operation logic error

 Documentation/filesystems/9p.rst |  52 +++++++++++++++++++++++++++++++++++++++-------------
 fs/9p/cache.h                    |   3 +--
 fs/9p/fid.c                      |  48 +++++++++++++++++++-----------------------------
 fs/9p/fid.h                      |  31 ++++++++++++++++++++++++++++++-
 fs/9p/v9fs.c                     |  59 +++++++++++++++++++++++++++++++----------------------------
 fs/9p/v9fs.h                     |  62 +++++++++++++++++++++++++++++++++++++++++++-------------------
 fs/9p/v9fs_vfs.h                 |   4 ----
 fs/9p/vfs_addr.c                 |  50 ++++++++++++++++++++++++++++----------------------
 fs/9p/vfs_dir.c                  |  10 +++++++---
 fs/9p/vfs_file.c                 | 206 ++++++++++++++++++++++++++++++++++++++++++--------------------------------------------------------------------------------------------------------------------------------------------------------------------
 fs/9p/vfs_inode.c                | 111 +++++++++++++++++++++++++++++++++++++++++++++++++++++++--------------------------------------------------------
 fs/9p/vfs_inode_dotl.c           |  90 +++++++++++++++++++++++++++++++++++++++++++++++++++---------------------------------------
 fs/9p/vfs_super.c                |  44 ++++++++++++--------------------------------
 include/net/9p/9p.h              |   6 ++++++
 net/9p/client.c                  |   8 ++++----
 15 files changed, 368 insertions(+), 416 deletions(-)


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