Date: Thu, 26 Jun 2008 14:24:54 +0100
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: =?UTF-8?B?5aSP5Lqu?= <xiaiaxaxi@sjtu.edu.cn>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Can I use yield in this way
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>        Can yield() be used as above. After I compile the kernel and  
> run again. Kernel is not working just as it meets deadlock. And if I  
> comment yield(), it runs ok. Could anyone help me?Thanks!

You cannot schedule within an interrupt (the interrupt handler cannot
yield) - you can force a reschedule however, and in theory you could
change the processor masks and trigger a reschedule to do what you want

Alan
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