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SubjectRe: [NFS] What's slated for inclusion in 2.6.24-rc1 from the NFS client git tree...
On Thu, 04 Oct 2007 10:00:50 -0400
Trond Myklebust <trond.myklebust@fys.uio.no> wrote:

> On Thu, 2007-10-04 at 08:52 +0200, Pierre Ossman wrote:
> > On Wed, 03 Oct 2007 19:41:16 -0400
> > Trond Myklebust <trond.myklebust@fys.uio.no> wrote:
> >
> > >
> > > We also have the 64-bit inode support from RedHat/Peter Staubach.
> > >
> >
> > As has been pointed[1] out[2], this will cause regressions for
> > non-LFS applications (of which there are still lots and lots). This
> > change should be in feature-removal (the "feature" being removed is
> > legacy support for non-LFS applications using NFS servers that make
> > full use of the protocol) and preferably accompanied with
> > appropriate user space changes (e.g. compatibility option in glibc).
> >
> > [1] https://bugzilla.redhat.com/show_bug.cgi?id=241348
> > [2] http://marc.info/?l=linux-nfs&m=118701088726477&w=2
> >
> > Rgds
>
> How about a boot/module parameter to turn it on or off?
>

That would be perfect. It can even be in non-legacy mode by default,
just as long as you can go back to the old behaviour when/if you run
into a non-LFS application.

> I don't see any point in having a sysctl for something like this:
> either you have legacy applications or you don't. It is not something
> that you switch off as you go off to lunch.
> A compile parameter, OTOH, would be too restrictive since it would
> force distros to choose just one behaviour (which would mean they
> would have to choose the most conservative).
>

Agreed.

Rgds
--
-- Pierre Ossman

Linux kernel, MMC maintainer http://www.kernel.org
PulseAudio, core developer http://pulseaudio.org
rdesktop, core developer http://www.rdesktop.org
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