linux-kernel - Re: [PATCH 1/2] fs: add SEEK_HOLE and SEEK

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Message-ID: <4DB17D5B.2090303@redhat.com>
Date:	Fri, 22 Apr 2011 07:06:35 -0600
From:	Eric Blake <eblake@...hat.com>
To:	Markus Trippelsdorf <markus@...ppelsdorf.de>
CC:	Christoph Hellwig <hch@...radead.org>,
	Josef Bacik <josef@...icpanda.com>,
	linux-kernel@...r.kernel.org, linux-btrfs@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, Coreutils <coreutils@....org>
Subject: Re: [PATCH 1/2] fs: add SEEK_HOLE and SEEK_DATA flags

On 04/22/2011 05:28 AM, Markus Trippelsdorf wrote:
>> I would be surprised if the bug is around for such a long time, but
>> otherwise I concur.
> 
> It's a bug. Let me quote what Jeff Bonwick wrote on his blog:
> 
> »I'm not sure where you got the impression that either SEEK_HOLE or
> SEEK_DATA doesn't set the file pointer. They do. (If they didn't, that
> would be weird, and we'd call it out explicitly.)«
> 
> http://blogs.sun.com/bonwick/entry/seek_hole_and_seek_data

I've created a request to standardize SEEK_HOLE and SEEK_DATA in the
next revision of POSIX; comments are welcome to make sure that everyone
is happy with wording:
http://austingroupbugs.net/view.php?id=415

-- 
Eric Blake   eblake@...hat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org


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