linux-ext4 - Re: [Gluster-devel] regressions due to 64-bit ext4 directory cookies

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Message-ID: <20130328175205.GD16651@lenny.home.zabbo.net>
Date:	Thu, 28 Mar 2013 10:52:05 -0700
From:	Zach Brown <zab@...hat.com>
To:	"Theodore Ts'o" <tytso@....edu>
Cc:	Eric Sandeen <sandeen@...hat.com>,
	Bernd Schubert <bernd.schubert@...m.fraunhofer.de>,
	Anand Avati <anand.avati@...il.com>,
	"J. Bruce Fields" <bfields@...ldses.org>,
	linux-nfs@...r.kernel.org, linux-ext4@...r.kernel.org,
	gluster-devel@...gnu.org
Subject: Re: [Gluster-devel] regressions due to 64-bit ext4 directory cookies

On Thu, Mar 28, 2013 at 10:07:44AM -0400, Theodore Ts'o wrote:
> On Tue, Mar 26, 2013 at 10:48:14AM -0500, Eric Sandeen wrote:
> > > We don't have reached a conclusion so far, do we? What about the
> > > ioctl approach, but a bit differently? Would it work to specify the
> > > allowed upper bits for ext4 (for example 16 additional bit) and the
> > > remaining part for gluster? One of the mails had the calculation
> > > formula:
> > 
> > I did throw together an ioctl patch last week, but I think Anand has a new
> > approach he's trying out which won't require ext4 code changes.  I'll let
> > him reply when he has a moment.  :)
> 
> Any update about whether Gluster can address this without needing the
> ioctl patch?  Or should we push the ioctl patch into ext4 for the next
> merge window?

They're testing a work-around:

  http://review.gluster.org/#change,4711

I'm not sure if they've decided that they're going to go with it, or
not.

- z
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