nfsd: split transport vs operation errors for callbacks

We must only increment the sequence id if the client has seen and responded
to a request.  If we failed to deliver it to the client we must resend with
the same sequence id.  So just like the client track errors at the transport
level differently from those returned in the XDR.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index bde45d9..e791985 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -68,6 +68,7 @@ struct nfsd4_callback {
 	struct rpc_message cb_msg;
 	struct nfsd4_callback_ops *cb_ops;
 	struct work_struct cb_work;
+	int cb_status;
 	bool cb_done;
 };