linux-kernel - [PATCH v7 0/9] fs: clean up handling of i

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Date:   Mon, 17 Oct 2022 06:57:00 -0400
From:   Jeff Layton <jlayton@...nel.org>
To:     tytso@....edu, adilger.kernel@...ger.ca, djwong@...nel.org,
        david@...morbit.com, trondmy@...merspace.com, neilb@...e.de,
        viro@...iv.linux.org.uk, zohar@...ux.ibm.com, xiubli@...hat.com,
        chuck.lever@...cle.com, lczerner@...hat.com, jack@...e.cz,
        bfields@...ldses.org, brauner@...nel.org, fweimer@...hat.com
Cc:     linux-btrfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, ceph-devel@...r.kernel.org,
        linux-ext4@...r.kernel.org, linux-nfs@...r.kernel.org,
        linux-xfs@...r.kernel.org
Subject: [PATCH v7 0/9] fs: clean up handling of i_version counter

This patchset is intended to clean up the handling of the i_version
counter by nfsd. Most of the changes are to internal interfaces.

This set is not intended to address crash resilience, or the fact that
the counter is bumped before a change and not after. I intend to tackle
those in follow-on patchsets.

My intention is to get this series included into linux-next soon, with
an eye toward merging most of it during the v6.2 merge window. The last
patch in the series is probably not suitable for merge as-is, at least
until we sort out the semantics we want to present to userland for it.

Jeff Layton (9):
  fs: uninline inode_query_iversion
  fs: clarify when the i_version counter must be updated
  vfs: plumb i_version handling into struct kstat
  nfs: report the inode version in getattr if requested
  ceph: report the inode version in getattr if requested
  nfsd: move nfsd4_change_attribute to nfsfh.c
  nfsd: use the getattr operation to fetch i_version
  nfsd: remove fetch_iversion export operation
  vfs: expose STATX_VERSION to userland

 fs/ceph/inode.c           | 16 +++++++----
 fs/libfs.c                | 36 ++++++++++++++++++++++++
 fs/nfs/export.c           |  7 -----
 fs/nfs/inode.c            | 15 +++++++---
 fs/nfsd/nfs4xdr.c         |  4 ++-
 fs/nfsd/nfsfh.c           | 42 ++++++++++++++++++++++++++++
 fs/nfsd/nfsfh.h           | 29 +-------------------
 fs/nfsd/vfs.h             |  7 ++++-
 fs/stat.c                 |  7 +++++
 include/linux/exportfs.h  |  1 -
 include/linux/iversion.h  | 58 ++++++++++++++-------------------------
 include/linux/stat.h      |  2 +-
 include/uapi/linux/stat.h |  6 ++--
 samples/vfs/test-statx.c  |  8 ++++--
 14 files changed, 148 insertions(+), 90 deletions(-)

-- 
2.37.3