Re: [patch 3/7] softirq: avoid softirq_work_list for SCHED_SOFTIRQwhen sent remotely

From: Peter Zijlstra
Date: Thu May 20 2010 - 04:13:29 EST


On Mon, 2010-05-17 at 11:27 -0700, Suresh Siddha wrote:
> plain text document attachment
> (fix_local_trigger_remote_softirq_for_sched.patch)
> There is no need to add the SCHED_SOFTIRQ work to the softirq_work_list
> when sent remotely. This is because any pending work associated with
> SCHED_SOFTIRQ need not be migrated to a new cpu when the current cpu is
> going down etc.
>
> Also I am not sure how this softirq_work_list works for other softirqs.
> I don't see anyone removing the list entries from the softirq_work_list
> after it is handled on a remote cpu.

Most odd all that, Dave, Jens, what happened to all that remote_softirq
stuff?
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