Re: [NFS] What's slated for inclusion in 2.6.24-rc1 from the NFSclient git tree...

From: Trond Myklebust
Date: Thu Oct 04 2007 - 10:01:36 EST


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@xxxxxxxxxx> 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?

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).

Trond

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