[PATCH 2/3] NFSD: Do not fence the client on NFS4ERR_RETRY_UNCACHED_REP error

[Dai Ngo <dai.ngo@oracle.com>]

NFS4ERR_RETRY_UNCACHED_REP error means client has seen and replied
to the layout recall, no fencing is needed.

Fixes: f99d4fbdae67 ("nfsd: add SCSI layout support")
Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
---
 fs/nfsd/nfs4layouts.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fs/nfsd/nfs4layouts.c b/fs/nfsd/nfs4layouts.c
index 683bd1130afe..cfce8bfd396c 100644
--- a/fs/nfsd/nfs4layouts.c
+++ b/fs/nfsd/nfs4layouts.c
@@ -715,6 +715,12 @@ nfsd4_cb_layout_done(struct nfsd4_callback *cb, struct rpc_task *task)
 			nfsd_file_put(fl);
 		}
 		return 1;
+	case -NFS4ERR_RETRY_UNCACHED_REP:
+		/*
+		 * client has seen and replied to this request,
+		 * no need to fence the client
+		 */
+		return 1;
 	case -NFS4ERR_NOMATCHING_LAYOUT:
 		trace_nfsd_layout_recall_done(&ls->ls_stid.sc_stateid);
 		task->tk_status = 0;
-- 
2.47.3