linux-kernel - Re: [RFC][PATCH 6/8] mm: handle_speculative

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Message-ID: <alpine.LFD.2.00.1001071639560.7821@localhost.localdomain>
Date:	Thu, 7 Jan 2010 16:41:43 -0800 (PST)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
cc:	Peter Zijlstra <peterz@...radead.org>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Arjan van de Ven <arjan@...radead.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"minchan.kim@...il.com" <minchan.kim@...il.com>,
	"hugh.dickins" <hugh.dickins@...cali.co.uk>,
	Nick Piggin <nickpiggin@...oo.com.au>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [RFC][PATCH 6/8] mm: handle_speculative_fault()



On Thu, 7 Jan 2010, Linus Torvalds wrote:
> 
>  - the patch I sent out just falls back to the old code if it finds 
>    something fishy, so it will do whatever do_brk() does regardless.

Btw, I'd like to state it again - the patch I sent out was not ready to be 
applied. I'm pretty sure it should check things like certain vm_flags 
too(VM_LOCKED etc), and fall back for those cases as well.

So the patch was more meant to illustrate the _concept_ than meant to 
necessarily be taken seriously as-is.

			Linus
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