From: Zhang Xianwei zhang.xianwei8@zte.com.cn
stable inclusion from stable-v5.10.138 commit f2bd1cc1fe7a58af9f701e82a84d035104ceb87f category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I60QFD
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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commit e35a5e782f67ed76a65ad0f23a484444a95f000f upstream.
A client should be able to handle getting an EACCES error while doing a mount operation to reclaim state due to NFS4CLNT_RECLAIM_REBOOT being set. If the server returns RPC_AUTH_BADCRED because authentication failed when we execute "exportfs -au", then RECLAIM_COMPLETE will go a wrong way. After mount succeeds, all OPEN call will fail due to an NFS4ERR_GRACE error being returned. This patch is to fix it by resending a RPC request.
Signed-off-by: Zhang Xianwei zhang.xianwei8@zte.com.cn Signed-off-by: Yi Wang wang.yi59@zte.com.cn Fixes: aa5190d0ed7d ("NFSv4: Kill nfs4_async_handle_error() abuses by NFSv4.1") Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com Reviewed-by: Wei Li liwei391@huawei.com --- fs/nfs/nfs4proc.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 813a1e7873af..e6c68ccf2915 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -9273,6 +9273,9 @@ static int nfs41_reclaim_complete_handle_errors(struct rpc_task *task, struct nf rpc_delay(task, NFS4_POLL_RETRY_MAX); fallthrough; case -NFS4ERR_RETRY_UNCACHED_REP: + case -EACCES: + dprintk("%s: failed to reclaim complete error %d for server %s, retrying\n", + __func__, task->tk_status, clp->cl_hostname); return -EAGAIN; case -NFS4ERR_BADSESSION: case -NFS4ERR_DEADSESSION: