linux-kernel - Re: [PATCH 0/5] make *_gate_vma accept mm_struct instead of task

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Message-ID: <20110309141441.GA8861@fibrous.localdomain>
Date:	Wed, 9 Mar 2011 09:14:41 -0500
From:	Stephen Wilson <wilsons@...rt.ca>
To:	Michel Lespinasse <walken@...gle.com>
Cc:	x86@...nel.org, Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	linux390@...ibm.com, Paul Mundt <lethal@...ux-sh.org>,
	Andi Kleen <ak@...ux.intel.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org,
	linux-sh@...r.kernel.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/5] make *_gate_vma accept mm_struct instead of
	task_struct

On Wed, Mar 09, 2011 at 05:09:09AM -0800, Michel Lespinasse wrote:
> On Tue, Mar 8, 2011 at 4:31 PM, Stephen Wilson <wilsons@...rt.ca> wrote:
> > Morally, the question of whether an address lies in a gate vma should be asked
> > with respect to an mm, not a particular task.
> >
> > Practically, dropping the dependency on task_struct will help make current and
> > future operations on mm's more flexible and convenient.  In particular, it
> > allows some code paths to avoid the need to hold task_lock.
> 
> Reviewed-by: Michel Lespinasse <walken@...gle.com>
> 
> May I suggest ia32_compat instead of just compat for the flag name ?

Yes, sounds good to me.  Will change in the next iteration.

Thanks for the review!


> -- 
> Michel "Walken" Lespinasse
> A program is never fully debugged until the last user dies.


-- 
steve

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