nfs41: lease renewal

Send a NFSv4.1 SEQUENCE op rather than RENEW that was deprecated in
minorversion 1.
Use the nfs_client minorversion to select reboot_recover/
network_partition_recovery/state_renewal ops.

Note: we use reclaimer to create the nfs41 session before there are any
cl_superblocks for the nfs_client.

Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[nfs41: check for session not minorversion]
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[revamped patch for new nfs4_state_manager design]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[nfs41: obliterate nfs4_state_recovery_ops.renew_lease method]
    moved to nfs4_state_maintenance_ops
[also undid per-minorversion nfs4_state_recovery_ops here]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/fs/nfs/nfs4renewd.c b/fs/nfs/nfs4renewd.c
index f524e932ff7b..92b43e87267c 100644
--- a/fs/nfs/nfs4renewd.c
+++ b/fs/nfs/nfs4renewd.c
@@ -59,12 +59,14 @@
 void
 nfs4_renew_state(struct work_struct *work)
 {
+        struct nfs4_state_maintenance_ops *ops;
         struct nfs_client *clp =
                 container_of(work, struct nfs_client, cl_renewd.work);
         struct rpc_cred *cred;
         long lease, timeout;
         unsigned long last, now;
 
+        ops = nfs4_state_renewal_ops[clp->cl_minorversion];
         dprintk("%s: start\n", __func__);
         /* Are there any active superblocks? */
         if (list_empty(&clp->cl_superblocks))
@@ -86,7 +88,7 @@ nfs4_renew_state(struct work_struct *work)
                         nfs_expire_all_delegations(clp);
                 } else {
                         /* Queue an asynchronous RENEW. */
-                        nfs4_proc_async_renew(clp, cred);
+                        ops->sched_state_renewal(clp, cred);
                         put_rpccred(cred);
                 }
                 timeout = (2 * lease) / 3;