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Re: Help with xfs and Fedora 8

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: Help with xfs and Fedora 8
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Thu, 13 Oct 2011 06:35:04 -0400
Cc: Ram Natarajan <ram@xxxxxxxxxxxxxxxx>, xfs@xxxxxxxxxxx
In-reply-to: <20111012231424.GK3159@dastard>
References: <CADDFK--585nmGJMuVhbhyO5S7tvCxR0Ur_1qxX73AvpAgau8Ew@xxxxxxxxxxxxxx> <20111012231424.GK3159@dastard>
User-agent: Mutt/1.5.21 (2010-09-15)
On Thu, Oct 13, 2011 at 10:14:24AM +1100, Dave Chinner wrote:
> > For various technical reasons, I cannot move to a
> > later kernel, but it would be great if I can build the latest xfs modules
> > and xfs support code for 2.6.23. Does anybody know if this is possible, and
> > if it is possible, will it work reliably?
> 
> The kernel code is not so simple. Indeed, if you're not a kernel
> programmer and familiar with the XFS code, then I'd put it in the
> impossible basket. It'll take at least 3 months to do the backport
> and adequately test it for production use, and that's if you pay an
> expert to do it.
> 
> It's far, far simpler to just upgrade your machines to a more recent
> distribution that it is to backport code to kernels that old....

Indeed.  If you insist on an old kernel version with a semi recent XFS
please get a RHEL/Centos 5 kernel.  That one is actually labelled 2.6.18
but contains many fixes and updated components, including a relatively
new XFS codebase.

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