linux-kernel - Re: [PATCH -v2] x86: MCE: Re-implement MCE log ring buffer as per-CPU ring buffer

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Message-Id: <1240987849.6842.1209.camel@yhuang-dev.sh.intel.com>
Date:	Wed, 29 Apr 2009 14:50:48 +0800
From:	Huang Ying <ying.huang@...el.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andi Kleen <ak@...ux.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -v2] x86: MCE: Re-implement MCE log ring buffer as
 per-CPU ring buffer

On Wed, 2009-04-29 at 14:11 +0800, Andi Kleen wrote:
> > Maybe the comment is a little confusing. What we do is limit the size of
> > user buffer size to prevent system from not response. If the user buffer
> 
> Ah. The standard way to handle this is to add cond_resched()s where
> appropiate. Maybe that would be an alternative or is that not
> possible? You have to drop locks of course.

Yes, I will use cond_resched() instead.

Best Regards,
Huang Ying

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