linux-kernel - [RFC][PATCH 0/8] fscache, cachefiles: Fixes

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Message-ID: <164945915630.773423.14655306154231712324.stgit@warthog.procyon.org.uk>
Date:   Sat, 09 Apr 2022 00:05:56 +0100
From:   David Howells <dhowells@...hat.com>
To:     linux-cachefs@...hat.com
Cc:     Dave Wysochanski <dwysocha@...hat.com>,
        Jeffle Xu <jefflexu@...ux.alibaba.com>,
        Gao Xiang <hsiangkao@...ux.alibaba.com>,
        Yue Hu <huyue2@...lpad.com>, dhowells@...hat.com,
        Jeff Layton <jlayton@...nel.org>,
        Jeffle Xu <jefflexu@...ux.alibaba.com>,
        Yue Hu <huyue2@...lpad.com>, linux-fsdevel@...r.kernel.org,
        linux-erofs@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [RFC][PATCH 0/8] fscache, cachefiles: Fixes


Here's a collection of fscache and cachefiles fixes and misc small
cleanups.  The two main fixes are:

 (1) Add a missing unmark of the inode in-use mark in an error path.

 (2) Fix a KASAN slab-out-of-bounds error when setting the xattr on a
     cachefiles volume due to the wrong length being given to memcpy().

In addition, there's the removal of an unused parameter, removal of an
unused Kconfig option, conditionalising a bit of procfs-related stuff and
some doc fixes.

The patches are on a branch here:

	https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/log/?h=fscache-fixes

David

---
Dave Wysochanski (1):
      cachefiles: Fix KASAN slab-out-of-bounds in cachefiles_set_volume_xattr

Jeffle Xu (1):
      cachefiles: unmark inode in use in error path

Yue Hu (6):
      docs: filesystems: caching/backend-api.rst: correct two relinquish APIs use
      docs: filesystems: caching/backend-api.rst: fix an object withdrawn API
      fscache: Remove the cookie parameter from fscache_clear_page_bits()
      fscache: Move fscache_cookies_seq_ops specific code under CONFIG_PROC_FS
      fscache: Use wrapper fscache_set_cache_state() directly when relinquishing
      fscache: remove FSCACHE_OLD_API Kconfig option


 .../filesystems/caching/backend-api.rst       |  8 ++---
 .../filesystems/caching/netfs-api.rst         | 25 +++++++-------
 fs/afs/write.c                                |  3 +-
 fs/cachefiles/namei.c                         | 33 ++++++++++++++-----
 fs/cachefiles/xattr.c                         |  2 +-
 fs/fscache/Kconfig                            |  3 --
 fs/fscache/cache.c                            |  2 +-
 fs/fscache/cookie.c                           |  4 ++-
 fs/fscache/internal.h                         |  4 +++
 fs/fscache/io.c                               |  5 ++-
 include/linux/fscache.h                       |  4 +--
 11 files changed, 53 insertions(+), 40 deletions(-)