3.5.7.12 -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]>
[ luis: adjust context ]
Signed-off-by: Luis Henriques <[email protected]>
---
 fs/nfs/nfs4proc.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index b96aa12..480918e 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1381,6 +1381,12 @@ int nfs4_open_delegation_recall(struct nfs_open_context 
*ctx, struct nfs4_state
                        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);
-- 
1.8.1.2

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