[PATCH v3 3/3] NFSv4: Observe the NFS_MOUNT_SOFTREVAL flag in _nfs4_proc_lookupp

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From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>

We need to respect the NFS_MOUNT_SOFTREVAL flag in _nfs4_proc_lookupp,
by timing out if the server is unavailable.

Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
---
 fs/nfs/nfs4proc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index bdf33e18fc54..c306c97c1ed0 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4376,6 +4376,10 @@ static int _nfs4_proc_lookupp(struct inode *inode,
 		.rpc_argp = &args,
 		.rpc_resp = &res,
 	};
+	unsigned short task_flags = 0;
+
+	if (NFS_SERVER(inode)->flags & NFS_MOUNT_SOFTREVAL)
+		task_flags |= RPC_TASK_TIMEOUT;
 
 	args.bitmask = nfs4_bitmask(server, label);
 
@@ -4383,7 +4387,7 @@ static int _nfs4_proc_lookupp(struct inode *inode,
 
 	dprintk("NFS call  lookupp ino=0x%lx\n", inode->i_ino);
 	status = nfs4_call_sync(clnt, server, &msg, &args.seq_args,
-				&res.seq_res, 0);
+				&res.seq_res, task_flags);
 	dprintk("NFS reply lookupp: %d\n", status);
 	return status;
 }
-- 
2.26.2




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