nfsd4: use generic callback code in null case

This will eventually allow us, for example, to kick off null callback
from contexts where we can't sleep.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

1 files changed, 1 insertions, 0 deletions

diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index 6e592148ad80..19732d531cda 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -223,6 +223,7 @@ struct nfs4_client {
         struct nfs4_cb_conn     cl_cb_conn;
         struct rpc_clnt         *cl_cb_client;
         atomic_t                cl_cb_set;
+        struct nfsd4_callback   cl_cb_null;
 
         /* for nfs41 */
         struct list_head        cl_sessions;