Commit a865880e authored Sep 23, 2016 by Olga Kornievskaia Committed by Anna Schumaker Sep 29, 2016

Retry operation on EREMOTEIO on an interrupted slot



If an operation got interrupted, then since we don't know if the
server processed it on not, we keep the seq#. Upon reuse of slot
and seq# if we get reply from the cache (ie EREMOTEIO) then we
need to retry the operation after bumping the seq#

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

parent bfc505de

fs/nfs/nfs4proc.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -755,6 +755,13 @@ static int nfs41_sequence_process(struct rpc_task *task,
		/* Check the SEQUENCE operation status */
		switch (res->sr_status) {
		case 0:
		/* If previous op on slot was interrupted and we reused
		* the seq# and got a reply from the cache, then retry
		*/
		if (task->tk_status == -EREMOTEIO && interrupted) {
		++slot->seq_nr;
		goto retry_nowait;
		}
		/* Update the slot's sequence and clientid lease timer */
		slot->seq_done = 1;
		clp = session->clp;