linux-kernel - [PATCH 0/2] afs: Fix ref-put functions

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Message-ID: <165911277121.3745403.18238096564862303683.stgit@warthog.procyon.org.uk>
Date:   Fri, 29 Jul 2022 17:39:31 +0100
From:   David Howells <dhowells@...hat.com>
To:     linux-afs@...ts.infradead.org
Cc:     Marc Dionne <marc.dionne@...istor.com>, dhowells@...hat.com,
        Marc Dionne <marc.dionne@...istor.com>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] afs: Fix ref-put functions


Here's a pair of patches: the first converts afs to use refcount_t instead
of atomic_t for its refcounts; the second fixes a number of afs ref-putting
functions to make sure they don't access the target object after the
decrement unless the refcount was reduced to 0.

The patches can be found here:

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

David

---
David Howells (2):
      afs: Use refcount_t rather than atomic_t
      afs: Fix access after dec in put functions


 fs/afs/cell.c              | 61 ++++++++++++++++++--------------------
 fs/afs/cmservice.c         |  4 +--
 fs/afs/internal.h          | 16 +++++-----
 fs/afs/proc.c              |  6 ++--
 fs/afs/rxrpc.c             | 31 ++++++++++---------
 fs/afs/server.c            | 46 +++++++++++++++++-----------
 fs/afs/vl_list.c           | 19 ++++--------
 fs/afs/volume.c            | 21 ++++++++-----
 include/trace/events/afs.h | 36 +++++++++++-----------
 9 files changed, 124 insertions(+), 116 deletions(-)