set_ti_thread_flag
set_ti_thread_flag(ti, TIF_SINGLESTEP);
set_ti_thread_flag(ti, TIF_LOAD_WATCH);
set_ti_thread_flag(&task->thread_info, TIF_SPEC_L1D_FLUSH);
set_ti_thread_flag(task_thread_info(tsk), flag);
set_ti_thread_flag(ti, flag);
set_ti_thread_flag(current_thread_info(), flag)
set_ti_thread_flag(current_thread_info(), TIF_##fl)
set_ti_thread_flag(task_thread_info(t), TIF_##fl)
set_ti_thread_flag(ti, tif);
set_ti_thread_flag(cti, tif);