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@xxxxxxxxxx>
---
fs/nfs/nfs4proc.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 88b549e..3c652bc 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -722,6 +722,13 @@ 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;
--
1.8.3.1
--
To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
