Help working with a pseudo-progress-based scheduler

[Lucas Prado Melo]

Hello, I would like to create a pseudo-progress-based scheduler based
on the priority-based scheduler of the kernel.
I created some fields on task_struct and I've adapted the function
effective_prio() to change the priority based on a modifier.

I need to update the priority modifier every 'n' ticks, how do I do
some action every 'n' ticks?

Also, I need to create a syscall that would take an user-space address
and a pid of the task to change the priority of the task with the
given pid based on the progress data available on the user-space
address.
How do I get the task_struct through the task's pid?

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