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

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Message-ID: <4AB8F256.2080205@redhat.com>
Date:	Tue, 22 Sep 2009 18:50:46 +0300
From:	Avi Kivity <avi@...hat.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"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 05:45 PM, Avi Kivity 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?
>
> I only implemented this for x86, while lockdep is arch independent.  
> If arch support is added, it should be trivial.
>

The lockdep_sys_exit bit is actually x86/s390 only, and can easily be 
adapted to use the new functionality on x86 only.  I'll try it out.

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

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