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authorOlga Kornievskaia <kolga@netapp.com>2016-09-23 17:24:03 -0400
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2016-09-29 12:31:48 -0400
commita865880e20ca4d2df362f61c9ef51f0fc0273131 (patch)
tree0dce927342c7f265384d82359c4b3c29004e7813 /fs/nfs
parentbfc505ded01e3c57d12c6f939f352200655d8635 (diff)
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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>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/nfs4proc.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 5b2b07bca490..8b30cdf41848 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -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;