Added checks in the nfs4_handle_exception for FHEXPIRED.
If FHEXPIRED is received from the server and the appropriate
attributes are enabled then the client calls
nfs4_fhexpired_recovery() to perform the lookup operation to
try and recovery the expired vfh.
If the mount option is not enabled or the server FH_EXPIRE_TYPE
doesn't have VOLATILE_ANY then client will convert the
FHEXPIRED error into ESTALE since recovery isn't possible.
Signed-off-by: Matthew Treinish <treinish@xxxxxxxxxxxxxxxxxx>
---
fs/nfs/nfs4proc.c | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index ebc5ee9..8ae5c49 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -277,6 +277,16 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc
case -NFS4ERR_STALE_CLIENTID:
nfs4_schedule_lease_recovery(clp);
goto wait_on_recovery;
+ case -NFS4ERR_FHEXPIRED:
+ if (server->flags & NFS_MOUNT_VFHRETRY)
+ if (server->fhexpiretype & NFS4_FH_VOLATILE_ANY) {
+ ret = nfs4_fhexpired_recovery(server, exception);
+ if (!ret)
+ ret = -EAGAIN;
+ break;
+ }
+ ret = -ESTALE;
+ break;
#if defined(CONFIG_NFS_V4_1)
case -NFS4ERR_BADSESSION:
case -NFS4ERR_BADSLOT:
--
1.7.4.4
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