From: Anand Avati Subject: Re: regressions due to 64-bit ext4 directory cookies Date: Thu, 28 Mar 2013 11:05:41 -0700 Message-ID: References: <20130213222052.GD5938@thunk.org> <20130213224141.GU14195@fieldses.org> <20130213224720.GE5938@thunk.org> <20130213230511.GW14195@fieldses.org> <20130213234430.GF5938@thunk.org> <5151BD5F.30607@itwm.fraunhofer.de> <5151C33E.2070008@redhat.com> <20130328140744.GA4989@thunk.org> <20130328175205.GD16651@lenny.home.zabbo.net> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1553705280663364187==" Cc: Eric Sandeen , linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Theodore Ts'o , Bernd Schubert , linux-ext4-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, gluster-devel-qX2TKyscuCcdnm+yROfE0A@public.gmane.org To: Zach Brown Return-path: In-Reply-To: <20130328175205.GD16651-fypN+1c5dIyjpB87vu3CluTW4wlIGRCZ@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gluster-devel-bounces+gcfgd-gluster-devel=m.gmane.org-qX2TKyscuCcdnm+yROfE0A@public.gmane.org Sender: gluster-devel-bounces+gcfgd-gluster-devel=m.gmane.org-qX2TKyscuCcdnm+yROfE0A@public.gmane.org List-Id: linux-ext4.vger.kernel.org --===============1553705280663364187== Content-Type: multipart/alternative; boundary=e89a8f839d51a9093b04d9000075 --e89a8f839d51a9093b04d9000075 Content-Type: text/plain; charset=ISO-8859-1 On Thu, Mar 28, 2013 at 10:52 AM, Zach Brown wrote: > 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. > Jeff reported that the approach did not work in his testing. I haven't had a chance to look into the failure yet. Independent of the fix, it would certainly be good have the ioctl() support - Samba could use it too, if it wanted. Avati --e89a8f839d51a9093b04d9000075 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable

On Thu, Mar 28, 2013 at 10:52 AM, Zach B= rown <zab-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
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 a= bout the
> > > ioctl approach, but a bit differently? Would it work to spec= ify the
> > > allowed upper bits for ext4 (for example 16 additional bit) = and the
> > > remaining part for gluster? One of the mails had the calcula= tion
> > > 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 ch= anges. =A0I'll let
> > him reply when he has a moment. =A0:)
>
> Any update about whether Gluster can address this without needing the<= br> > ioctl patch? =A0Or should we push the ioctl patch into ext4 for the ne= xt
> merge window?

They're testing a work-around:

=A0 ht= tp://review.gluster.org/#change,4711

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

Jef= f reported that the approach did not work in his testing. I haven't had= a chance to look into the failure yet. Independent of the fix, it would ce= rtainly be good have the ioctl() support - Samba could use it too, if it wa= nted.

Avati

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