NFSv4.1: Don't update sequence number if rpc_task is not sent

If we fail to contact the gss upcall program, then no message will
be sent to the server.  The client still updated the sequence number,
however, and this lead to NFS4ERR_SEQ_MISMATCH for the next several
RPC calls.

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index d81db8012c63..3b94f804b852 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -127,6 +127,7 @@ struct rpc_task_setup {
 #define RPC_TASK_KILLED         0x0100          /* task was killed */
 #define RPC_TASK_SOFT           0x0200          /* Use soft timeouts */
 #define RPC_TASK_SOFTCONN       0x0400          /* Fail if can't connect */
+#define RPC_TASK_SENT           0x0800          /* message was sent */
 
 #define RPC_IS_ASYNC(t)         ((t)->tk_flags & RPC_TASK_ASYNC)
 #define RPC_IS_SWAPPER(t)       ((t)->tk_flags & RPC_TASK_SWAPPER)
@@ -134,6 +135,7 @@ struct rpc_task_setup {
 #define RPC_ASSASSINATED(t)     ((t)->tk_flags & RPC_TASK_KILLED)
 #define RPC_IS_SOFT(t)          ((t)->tk_flags & RPC_TASK_SOFT)
 #define RPC_IS_SOFTCONN(t)      ((t)->tk_flags & RPC_TASK_SOFTCONN)
+#define RPC_WAS_SENT(t)         ((t)->tk_flags & RPC_TASK_SENT)
 
 #define RPC_TASK_RUNNING        0
 #define RPC_TASK_QUEUED         1