NFSv4: Don't tell server we rebooted when not necessary

Instead of doing a full setclientid, try doing a RENEW call first.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 11 insertions, 11 deletions

diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 3cc88a5d9881..a780518c5c3f 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1059,19 +1059,19 @@ static int nfs4_check_lease(struct nfs_client *clp)
         struct rpc_cred *cred;
         int status = -NFS4ERR_EXPIRED;
 
-        /* Are there any open files on this volume? */
+        /* Is the client already known to have an expired lease? */
+        if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state))
+                return 0;
         cred = nfs4_get_renew_cred(clp);
-        if (cred != NULL) {
-                /* Yes there are: try to renew the old lease */
-                status = nfs4_proc_renew(clp, cred);
-                put_rpccred(cred);
-                nfs4_recovery_handle_error(clp, status);
-                return status;
+        if (cred == NULL) {
+                cred = nfs4_get_setclientid_cred(clp);
+                if (cred == NULL)
+                        goto out;
         }
-
-        /* "reboot" to ensure we clear all state on the server */
-        clp->cl_boot_time = CURRENT_TIME;
-        set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+        status = nfs4_proc_renew(clp, cred);
+        put_rpccred(cred);
+out:
+        nfs4_recovery_handle_error(clp, status);
         return status;
 }