struct cl_thread_info *cl_env_info(const struct lu_env *env);
void cl_page_disown0(const struct lu_env *env,
struct cl_io *io, struct cl_page *pg);
struct cl_thread_info *cl_env_info(const struct lu_env *env);
void cl_page_disown0(const struct lu_env *env,
struct cl_io *io, struct cl_page *pg);