NFSv4: Retry lease recovery if it failed during a synchronous operation.

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

1 files changed, 9 insertions, 2 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 7f60beb40df3..c218cc450b92 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -793,10 +793,17 @@ out:
 int nfs4_recover_expired_lease(struct nfs_server *server)
 {
         struct nfs_client *clp = server->nfs_client;
+        int ret;
 
-        if (test_and_clear_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state))
+        for (;;) {
+                ret = nfs4_wait_clnt_recover(server->client, clp);
+                if (ret != 0)
+                        return ret;
+                if (!test_and_clear_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state))
+                        break;
                 nfs4_schedule_state_recovery(clp);
-        return nfs4_wait_clnt_recover(server->client, clp);
+        }
+        return 0;
 }
 
 /*