linux-kernel - Re: [PATCH v2] core, x86: Add user return notifiers

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Message-ID: <4AB900B1.9070901@redhat.com>
Date:	Tue, 22 Sep 2009 19:52:01 +0300
From:	Avi Kivity <avi@...hat.com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
CC:	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
	Marcelo Tosatti <mtosatti@...hat.com>
Subject: Re: [PATCH v2] core, x86: Add user return notifiers

On 09/22/2009 07:50 PM, Peter Zijlstra wrote:
>> Would be nice to convert some existing open-coded return-to-user-space
>> logic to this facility. One such candidate would be lockdep_sys_exit?
>>      
> And here I was thinking this was one of the hottest code paths in the
> whole kernel...
>    

If you're using lockdep, surely that's not your biggest worry?

-- 
error compiling committee.c: too many arguments to function

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