return container_of(slice, struct ccc_page, cpg_cl);
 }
 
-struct cl_page    *ccc_vmpage_page_transient(struct page *vmpage);
-
 struct ccc_device {
        struct cl_device    cdv_cl;
        struct super_block *cdv_sb;
 int ccc_page_is_under_lock(const struct lu_env *env,
                           const struct cl_page_slice *slice, struct cl_io *io);
 int ccc_fail(const struct lu_env *env, const struct cl_page_slice *slice);
-void ccc_transient_page_verify(const struct cl_page *page);
-int  ccc_transient_page_own(const struct lu_env *env,
-                           const struct cl_page_slice *slice,
-                           struct cl_io *io, int nonblock);
-void ccc_transient_page_assume(const struct lu_env *env,
-                              const struct cl_page_slice *slice,
-                              struct cl_io *io);
-void ccc_transient_page_unassume(const struct lu_env *env,
-                                const struct cl_page_slice *slice,
-                                struct cl_io *io);
-void ccc_transient_page_disown(const struct lu_env *env,
-                              const struct cl_page_slice *slice,
-                              struct cl_io *io);
-void ccc_transient_page_discard(const struct lu_env *env,
-                               const struct cl_page_slice *slice,
-                               struct cl_io *io);
 int ccc_transient_page_prep(const struct lu_env *env,
                            const struct cl_page_slice *slice,
                            struct cl_io *io);
 
 int cl_setattr_ost(struct inode *inode, const struct iattr *attr);
 
-struct cl_page *ccc_vmpage_page_transient(struct page *vmpage);
 int ccc_object_invariant(const struct cl_object *obj);
 int cl_file_inode_init(struct inode *inode, struct lustre_md *md);
 void cl_inode_fini(struct inode *inode);
 
        return 0;
 }
 
-void ccc_transient_page_verify(const struct cl_page *page)
-{
-}
-
-int ccc_transient_page_own(const struct lu_env *env,
-                                  const struct cl_page_slice *slice,
-                                  struct cl_io *unused,
-                                  int nonblock)
-{
-       ccc_transient_page_verify(slice->cpl_page);
-       return 0;
-}
-
-void ccc_transient_page_assume(const struct lu_env *env,
-                                     const struct cl_page_slice *slice,
-                                     struct cl_io *unused)
-{
-       ccc_transient_page_verify(slice->cpl_page);
-}
-
-void ccc_transient_page_unassume(const struct lu_env *env,
-                                       const struct cl_page_slice *slice,
-                                       struct cl_io *unused)
-{
-       ccc_transient_page_verify(slice->cpl_page);
-}
-
-void ccc_transient_page_disown(const struct lu_env *env,
-                                     const struct cl_page_slice *slice,
-                                     struct cl_io *unused)
-{
-       ccc_transient_page_verify(slice->cpl_page);
-}
-
-void ccc_transient_page_discard(const struct lu_env *env,
-                                      const struct cl_page_slice *slice,
-                                      struct cl_io *unused)
-{
-       struct cl_page *page = slice->cpl_page;
-
-       ccc_transient_page_verify(slice->cpl_page);
-
-       /*
-        * For transient pages, remove it from the radix tree.
-        */
-       cl_page_delete(env, page);
-}
-
 int ccc_transient_page_prep(const struct lu_env *env,
                                   const struct cl_page_slice *slice,
                                   struct cl_io *unused)