From mboxrd@z Thu Jan  1 00:00:00 1970
From: Al Viro <viro@ZenIV.linux.org.uk>
Subject: Re: [pnfs] [GIT BISECT] first bad commit: 1f36f774 Switch !O_CREAT
 case to use of do_last()
Date: Thu, 25 Mar 2010 13:37:46 +0000
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Cc: Benny Halevy <bhalevy@panasas.com>,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>,
	"J. Bruce Fields" <bfields@citi.umich.edu>,
	pNFS Mailing List <pnfs@linux-nfs.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Doug Nazar <nazard.lkml@gmail.com>
To: Boaz Harrosh <bharrosh@panasas.com>
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On Thu, Mar 25, 2010 at 03:30:22PM +0200, Boaz Harrosh wrote:
> > Let's try this: before do_lookup() call there add
> > 	if (*want_dir)
> > 		nd->flags |= LOOKUP_DIRECTORY;
> 
> Yes this fixes it!!
> 2.6.34-rc2 plus above, now works, horay. (diff attached)
> 
> > and see how does it behave.
> > 
> > However, even if it does help, it doesn't explain everything.  Normal
> > open() on a directory without O_DIRECTORY if flags shouldn't fail with
> > -EISDIR.  How did that manage to avoid it all along?

Does open() of directory _without_ O_DIRECTORY work in e.g. vanilla 2.6.33?
It certainly does for local filesystems and it does for NFSv3; does it work
for NFSv4?