linux-kernel - [PATCH -next 0/2] fix nfsv4 bugs of opening with O

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Message-ID: <20220329113208.2466000-1-chenxiaosong2@huawei.com>
Date:   Tue, 29 Mar 2022 19:32:06 +0800
From:   ChenXiaoSong <chenxiaosong2@...wei.com>
To:     <trond.myklebust@...merspace.com>, <anna@...nel.org>,
        <bjschuma@...app.com>
CC:     <linux-nfs@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <chenxiaosong2@...wei.com>, <liuyongqiang13@...wei.com>,
        <yi.zhang@...wei.com>, <zhangxiaoxu5@...wei.com>, <tao.lyu@...l.ch>
Subject: [PATCH -next 0/2] fix nfsv4 bugs of opening with O_ACCMODE flag

This series fixes following bugs:

When lseek() a file secondly opened with O_ACCMODE|O_DIRECT flags,
nfs4_valid_open_stateid() will dereference NULL nfs4_state.

open() with O_ACCMODE|O_DIRECT flags secondly will fail.

ChenXiaoSong (2):
  Revert "NFSv4: Handle the special Linux file open access mode"
  NFSv4: fix open failure with O_ACCMODE flag

 fs/nfs/dir.c      | 10 ----------
 fs/nfs/inode.c    |  1 -
 fs/nfs/internal.h | 10 ++++++++++
 fs/nfs/nfs4file.c |  6 ++++--
 4 files changed, 14 insertions(+), 13 deletions(-)

-- 
2.31.1