linux-kernel - [PATCH 0/5] smb3: Fix missing locks and invalidation in fallocate

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Message-ID: <166126004083.548536.11195647088995116235.stgit@warthog.procyon.org.uk>
Date:   Tue, 23 Aug 2022 14:07:20 +0100
From:   David Howells <dhowells@...hat.com>
To:     sfrench@...ba.org, linux-cifs@...r.kernel.org
Cc:     lsahlber@...hat.com, jlayton@...nel.org, dchinner@...hat.com,
        willy@...radead.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, samba-technical@...ts.samba.org
Subject: [PATCH 0/5] smb3: Fix missing locks and invalidation in fallocate


Here are some patches to fix locking and invalidation in the smb3/cifs
fallocate, in particular in zero_range, punch_hole, collapse_range and
insert_range.

Those four operations were, for the most part, missing calls to inode_lock(),
filemap_invalidate_lock() and truncate_pagecache_range(), the last of which
was causing generic/031 to show data corruption.

David
---
David Howells (4):
      smb3: Move the flush out of smb2_copychunk_range() into its callers
      smb3: missing inode locks in zero range
      smb3: missing inode locks in punch hole
      smb3: fix temporary data corruption in insert range

Steve French (1):
      smb3: fix temporary data corruption in collapse range


 fs/cifs/cifsfs.c  |   2 +
 fs/cifs/smb2ops.c | 131 ++++++++++++++++++++++++++--------------------
 2 files changed, 75 insertions(+), 58 deletions(-)