linux-kernel - Re: [patch] export ufs

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Message-ID: <20070208200216.GA5913@infradead.org>
Date:	Thu, 8 Feb 2007 20:02:16 +0000
From:	Christoph Hellwig <hch@...radead.org>
To:	Mike Frysinger <vapier@...too.org>
Cc:	dushistov@...l.ru, linux-kernel@...r.kernel.org, sparc@...too.org
Subject: Re: [patch] export ufs_fs.h to userspace

On Thu, Feb 08, 2007 at 02:46:16AM -0500, Mike Frysinger wrote:
> was ufs_fs.h purposefully not exported to userspace or did it just slip 
> through the cracks ?  assuming the latter scenario, the attached patch 
> touches up the relationship between ufs_fs.h and its sub headers (like 
> ufs_fs_sb.h) so that we can export it ... the silo bootloader takes advantage 
> of this header for example

We should only export kernel interfaces and ufs_fs.h isn't one.  silo
wants it because it defines the ufs format - but the linux structs for
that can and do change, e.g. adding unions when we add support for the
gazillion+1st ufs format variant.  silo should just grab a copy of it
that it's happy with it and update it when it needs to support another
format variant (which I think is a rather theoretical issue as silo
only supports the solaris/sparc format IIR)

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