linux-kernel - Re: Improve preempt-scheduling and x86 user access v3

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Message-ID: <20130828092943.GA14094@gmail.com>
Date:	Wed, 28 Aug 2013 11:29:43 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	linux-kernel@...r.kernel.org, x86@...nel.org, peterz@...radead.org,
	akpm@...ux-foundation.org
Subject: Re: Improve preempt-scheduling and x86 user access v3


* Andi Kleen <andi@...stfloor.org> wrote:

> Various optimizations related to CONFIG_PREEMPT_VOLUNTARY and x86 
> uaccess

Looks mostly good.

Does this patchset change the number of cond_resched() preemption points 
on CONFIG_PREEMPT_VOLUNTARY=y, or is it a scheduling invariant?

Thanks,

	Ingo
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