From: George Anzinger <george@mvista.com>
To: Yifan Zhu <yzhu2@unity.ncsu.edu>
Cc: linux-kernel@vger.kernel.org
Subject: Re: TIMER_BH in 2.4 kernel
Date: Wed, 01 Oct 2003 17:14:04 -0700 [thread overview]
Message-ID: <3F7B6DCC.9090604@mvista.com> (raw)
In-Reply-To: <3F788DE4.8030505@unity.ncsu.edu>
Yifan Zhu wrote:
> Hi,
> I'm looking at the 2.4 kernel. My understanding of the code is that the
> TIMER_BH handler is executed when the hardware timer interrupt returns (
> after do_IRQ(), but before returning to the interrupted task ). Is that
> right?
>
> Thanks for clarification!
Unless there is a bh_lock in effect at the time, in which case it is
executed when the lock is released.
-
--
George Anzinger george@mvista.com
High-res-timers: http://sourceforge.net/projects/high-res-timers/
Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml
prev parent reply other threads:[~2003-10-02 0:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-29 19:54 TIMER_BH in 2.4 kernel Yifan Zhu
2003-10-02 0:14 ` George Anzinger [this message]
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