NFSv4: When purging the lease, we must clear NFS4CLNT_LEASE_CONFIRM Otherwise we can end up not sending a new exchange-id/setclientid Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 758b9a8..604c600 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c

@@ -1647,6 +1647,7 @@
 {
 	if (test_and_set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) == 0) {
 		set_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state);
+		clear_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state);
 		nfs4_state_start_reclaim_nograce(clp);
 		nfs4_schedule_state_manager(clp);
 	}