linux-kernel - Re: [RFC PATCH] introduce sys_membarrier(): process-wide memory barrier (v3a)

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Message-ID: <1263244791.4244.76.camel@laptop>
Date:	Mon, 11 Jan 2010 22:19:51 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
Cc:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Oleg Nesterov <oleg@...hat.com>, linux-kernel@...r.kernel.org,
	Ingo Molnar <mingo@...e.hu>, akpm@...ux-foundation.org,
	josh@...htriplett.org, tglx@...utronix.de, Valdis.Kletnieks@...edu,
	dhowells@...hat.com, laijs@...fujitsu.com, dipankar@...ibm.com,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [RFC PATCH] introduce sys_membarrier(): process-wide memory
 barrier (v3a)

On Mon, 2010-01-11 at 15:52 -0500, Mathieu Desnoyers wrote:
> >  1) don't like that memory barrier in the generic code, 
> 
> Would that help if we proceed to arch-per-arch modification of
> switch_mm() instead ? 

Much preferred indeed.

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