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Subject: Re: [2.4] VFS locking problem during concurrent link/unlink
From: Chris Mason <mason@suse.com>
To: Oleg Drokin <green@namesys.com>
Cc: linux-kernel@vger.kernel.org, eazgwmir@umail.furryterror.org,
       viro@math.psu.edu, nikita@namesys.com
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Date: 16 Jan 2003 10:39:41 -0500
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On Thu, 2003-01-16 at 06:00, Oleg Drokin wrote:
> Hello!
> 
>    Debugging reiserfs problem that can be demonstrated with script created by
>    Zygo Blaxell, I started to wonder if the problem presented is indeed reiserfs
>    fault and not VFS.
>    Though the Zygo claims script only produces problems on reiserfs, I am trying
>    it now myself on ext2 (which will take some time).
> 
>    Debugging shows that reiserfs_link is sometimes called for inodes whose
>    i_nlink is zero (and all corresponding data is deleted already).
>    So my current guess of what's going on is this:
> 

No, this is a reiserfs bug, since we schedule after doing link checks in
reiserfs_link and reiserfs_unlink.  I sent a patch to reiserfs dev a
while ago, I'll pull it out of the suse kernel and rediff against
2.4.20.

-chris


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