linux-kernel - Re: [-mm patch] i386: enable 4k stacks by default

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Date:	Tue, 1 May 2007 09:24:39 +1000
From:	Neil Brown <neilb@...e.de>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	Christoph Hellwig <hch@...radead.org>, Zan Lynx <zlynx@....org>,
	Adrian Bunk <bunk@...sta.de>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [-mm patch] i386: enable 4k stacks by default

On Monday April 30, jens.axboe@...cle.com wrote:
> On Mon, Apr 30 2007, Christoph Hellwig wrote:
> > On Mon, Apr 30, 2007 at 06:55:52PM +1000, Neil Brown wrote:
> > > On Saturday April 28, zlynx@....org wrote:
> > > > On Sat, 2007-04-28 at 21:19 +0200, Adrian Bunk wrote:
> > > > > 4k stacks have become a well-tested feature used fore a long time in
> > > > > Fedora and even in RHEL 4.
> > > > 
> > > > So has anyone fixed the bugs involving ext3 and LVM snapshots on top of
> > > > DM mirror?
> > > 
> > > Well -mm has a patch which makes stacked block devices much less of an
> > > issue, but this hasn't made it -linus yet - I think the dm developer
> > > isn't happy that dm works properly with it.
> > 
> > I get a little tired about this objection.  If the particular dm code
> > was racy before and this can in theory make it worse it's their problem,
> > and putting in perfectly fine code will give them an incentive to
> > fix their year old race.
> 
> Agree, Neil would you mind if I merged the patch?

I am perfectly happy with this patch being merged - yes.

NeilBrown
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