From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chris Mason <chris.mason@oracle.com>
Subject: Re: Mass-Hardlinking Oops
Date: Mon, 12 Oct 2009 08:47:26 -0400
Message-ID: <20091012124726.GL2632@think>
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Cc: "Yan, Zheng " <yanzheng@21cn.com>,
	=?iso-8859-1?B?UORy?= Andersson <paran@lysator.liu.se>,
	linux-btrfs@vger.kernel.org
To: Tomasz Chmielewski <mangoo@wpkg.org>
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On Mon, Oct 12, 2009 at 10:07:43AM +0200, Tomasz Chmielewski wrote:
> Yan, Zheng wrote:
> 
> >>What is the reason for the limit, and is there any chance of increasing
> >>it to something more reasonable as Mikhail suggested?
> >
> >The limit is imposed by the format of inode back references. We can
> >get rid of the limit, but it requires a disk format change.
> 
> Please do get rid of this limit, it's ridiculously small.
> 
> Of course, not necessarily right now, but when you introduce some
> other changes needing disk format change, please think of removing
> the hard link limit as well.

Please keep in mind this is only a limit on the number of links to a
single file where the links and the file are all in the same directory.

-chris