From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Mike Frysinger" <vapier.adi@gmail.com>
Subject: Re: local_save_flags(flags)
Date: Thu, 18 Sep 2008 18:07:37 -0400
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To: fundu_1999@yahoo.com
Cc: linux embedded <linux-embedded@vger.kernel.org>

On Thu, Sep 18, 2008 at 18:05, Fundu wrote:
>> you really should just read a book on the topic.  LDD3
>> covers these
>> intricacies (and a lot more), as does Essential Linux
>> Device Drivers.
>
> i'm actually reading essential linux device drivers. And to get some clarification i made the post.

that book explicitly covers your question.  read chapter 2 where it
covers these irq functions.
-mike