kernel/sched.c questions

From: Sardaņons, Eliel (Eliel.Sardanons@philips.edu.ar)
Date: Wed Apr 04 2001 - 14:52:32 EST


Hello, I would like to know why you put this two functions:
void scheduling_functions_start_here(void) { }
...
void scheduling_functions_end_here(void) { }

why you put 'case TASK_RUNNING'

switch (prev->state) {
                case TASK_INTERRUPTIBLE:
                        if (signal_pending(prev)) {
                                prev->state = TASK_RUNNING;
                                break;
                        }
                default:
                        del_from_runqueue(prev);
                case TASK_RUNNING:
}

and the last one:

in the function schedule() you always use this syntax:

-----
if (a_condition)
    goto bebe;
bebe_back

bebe:
    do_bebe();
    goto bebe_back;
------
why not just doing:
   
   if (a_condition)
         do_bebe();

I know that goto's are better but finaly you are jumping to a function and
then calling the function. I think you can improve performance doing this.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Sat Apr 07 2001 - 21:00:15 EST