NFSv4: Send RENEW requests to the server only when we're holding state
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs4renewd.c b/fs/nfs/nfs4renewd.c
index a300162..f62c2f7 100644
--- a/fs/nfs/nfs4renewd.c
+++ b/fs/nfs/nfs4renewd.c
@@ -54,6 +54,7 @@
#include <linux/nfs4.h>
#include <linux/nfs_fs.h>
#include "nfs4_fs.h"
+#include "delegation.h"
#define NFSDBG_FACILITY NFSDBG_PROC
@@ -68,7 +69,7 @@
dprintk("%s: start\n", __FUNCTION__);
/* Are there any active superblocks? */
if (list_empty(&clp->cl_superblocks))
- goto out;
+ goto out;
spin_lock(&clp->cl_lock);
lease = clp->cl_lease_time;
last = clp->cl_last_renewal;
@@ -76,6 +77,12 @@
timeout = (2 * lease) / 3 + (long)last - (long)now;
/* Are we close to a lease timeout? */
if (time_after(now, last + lease/3)) {
+ if (list_empty(&clp->cl_state_owners)) {
+ set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+ spin_unlock(&clp->cl_lock);
+ nfs_expire_all_delegations(clp);
+ goto out;
+ }
spin_unlock(&clp->cl_lock);
/* Queue an asynchronous RENEW. */
nfs4_proc_async_renew(clp);