linux-kernel - Help working with a pseudo-progress-based scheduler

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Message-ID: <6217e0a0910300658w1e3b8b1aja988410924b7a20c@mail.gmail.com>
Date:	Fri, 30 Oct 2009 10:58:10 -0300
From:	Lucas Prado Melo <lucaspradomelo@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Help working with a pseudo-progress-based scheduler

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.
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