3.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Trond Myklebust <[email protected]>

commit 8b6cc4d6f841d31f72fe7478453759166d366274 upstream.

A server shouldn't normally return NFS4ERR_GRACE if the client holds a
delegation, since no conflicting lock reclaims can be granted, however
the spec does not require the server to grant the open in this
instance

Signed-off-by: Trond Myklebust <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 fs/nfs/nfs4proc.c |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1362,6 +1362,12 @@ int nfs4_open_delegation_recall(struct n
                        case -ENOMEM:
                                err = 0;
                                goto out;
+                       case -NFS4ERR_DELAY:
+                       case -NFS4ERR_GRACE:
+                               set_bit(NFS_DELEGATED_STATE, &state->flags);
+                               ssleep(1);
+                               err = -EAGAIN;
+                               goto out;
                }
                err = nfs4_handle_exception(server, err, &exception);
        } while (exception.retry);


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