Subject: Re: [linux-audio-dev] Re: [announce] [patch] Voluntary Kernel Preemption Patch
From: Scott Wood (scott_AT_timesys.com)
Date: Wed Jul 21 2004 - 21:34:15 EEST
On Wed, Jul 21, 2004 at 09:32:46PM +1000, Nick Piggin wrote:
> What do you think about deferring softirqs just while in critical
> sections?
>
> I'm not sure how well this works, and it is CONFIG_PREEMPT only
> but in theory it should prevent unbounded softirqs while under
> locks without taking the performance hit of doing the context
> switch.
You're still running do_softirq() with preemption disabled, which is
almost as bad as doing it under a lock.
-Scott
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