linux-kernel - Re: [PATCH] [11/19] HWPOISON: Refactor truncate to allow direct truncating of page v2

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Message-ID: <20090805144402.GD23992@wotan.suse.de>
Date:	Wed, 5 Aug 2009 16:44:02 +0200
From:	Nick Piggin <npiggin@...e.de>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, fengguang.wu@...el.com,
	hidehiro.kawai.ez@...achi.com, linux-arch@...r.kernel.org
Subject: Re: [PATCH] [11/19] HWPOISON: Refactor truncate to allow direct truncating of page v2

On Wed, Aug 05, 2009 at 04:41:12PM +0200, Andi Kleen wrote:
> > One question I had for the others (Andrew? other mm guys?) what is the
> > feelings of merging this feature? Leaving aside exact implementation
> > and just considering the high level design and cost/benefit. Last time
> > there were some people objecting, so I wonder the situation now? So
> > does anybody need more convincing? :)
> 
> The main objection last time was that it was a bit too late in the 
> release schedule.
> 
> I can't remember anyone really questioning the basic feature itself.

I can't exactly remember. Maybe it was in a thread with Alan and/or
Arjan ;) I don't think the feature itself was questioned as much as
cost/benefit. Maybe I was wrong...

I just want to see everyone is happy with the basic idea ;)


> > Also I will just cc linux-arch. It would be interesting to know whether
> > powerpc, ia64, or s390 or others would be interested to use this feature?
> 
> ia64 is interested (but no code so far) I talked to DaveM and he seems to be 
> interested for sparc too.  I would expect other server architectures to 
> eventually use it as they get around to writing the necessary architecture 
> specific glue.
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