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Message-ID: <3D9026B6.3080509@fugmann.dhs.org>
Date: Tue, 24 Sep 2002 10:47:50 +0200
From: Anders Fugmann <afu@fugmann.dhs.org>
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To: Linux-kernel <linux-kernel@vger.kernel.org>
Subject: Q: Scheduler and need_resched
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Hi.

I got a small question of what happens codevice when the quantum of a 
task is expired (counter == 0 -> need_resched == 1). Of cource schedule 
is invoked somehow, but from where? How is the "flow". I see from where 
do_timer is called, and that it schedules a BH, but then I'm stuck.

I have a feeling that some function is called (at least) each timer 
tick, which tests if schedules sould be called (a test on need_resched 
amongst others). I just cannot seem to find this function.

Any pointer appriciated.
Anders Fugmann





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