NFSv4.1: Ensure that we free the lock stateid on the server

This ensures that the server doesn't need to keep huge numbers of
lock stateids waiting around for the final CLOSE.
See section 8.2.4 in RFC5661.

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

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 553a83cc4106..a1dd768d0a35 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -47,6 +47,8 @@ struct nfs4_minor_version_ops {
                         const nfs4_stateid *);
         int     (*find_root_sec)(struct nfs_server *, struct nfs_fh *,
                         struct nfs_fsinfo *);
+        int     (*free_lock_state)(struct nfs_server *,
+                        struct nfs4_lock_state *);
         const struct nfs4_state_recovery_ops *reboot_recovery_ops;
         const struct nfs4_state_recovery_ops *nograce_recovery_ops;
         const struct nfs4_state_maintenance_ops *state_renewal_ops;
@@ -234,7 +236,6 @@ extern int nfs4_proc_fs_locations(struct rpc_clnt *, struct inode *, const struc
 extern struct rpc_clnt *nfs4_proc_lookup_mountpoint(struct inode *, struct qstr *,
                             struct nfs_fh *, struct nfs_fattr *);
 extern int nfs4_proc_secinfo(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
-extern int nfs4_release_lockowner(struct nfs4_lock_state *);
 extern const struct xattr_handler *nfs4_xattr_handlers[];
 extern int nfs4_set_rw_stateid(nfs4_stateid *stateid,
                 const struct nfs_open_context *ctx,