Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
         */
        if (task == current) return 0;
 
-       if ((task->state != TASK_STOPPED) && (task->state != TASK_TRACED)) {
+       if (!task_is_stopped_or_traced(task)) {
                DPRINT(("cannot attach to non-stopped task [%d] state=%ld\n", task_pid_nr(task), task->state));
                return -EBUSY;
        }
         * the task must be stopped.
         */
        if (PFM_CMD_STOPPED(cmd)) {
-               if ((task->state != TASK_STOPPED) && (task->state != TASK_TRACED)) {
+               if (!task_is_stopped_or_traced(task)) {
                        DPRINT(("[%d] task not in stopped state\n", task_pid_nr(task)));
                        return -EBUSY;
                }