linux-kernel - Re: [PATCH 1/2] vfs: Add fchmodat4 syscall: fchmodat with flag argument

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Message-Id: <20140121105735.56cc4ec41a6f20719a70d19e@andrewayer.name>
Date:	Tue, 21 Jan 2014 10:57:35 -0800
From:	Andrew Ayer <agwa@...rewayer.name>
To:	Florian Weimer <fweimer@...hat.com>,
	Alexander Viro <viro@...iv.linux.org.uk>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] vfs: Add fchmodat4 syscall: fchmodat with flag
 argument

On Tue, 21 Jan 2014 08:30:16 +0100
Florian Weimer <fweimer@...hat.com> wrote:

> On 01/13/2012 02:53 AM, Andrew Ayer wrote:
> > This adds a 4 argument version of fchmodat (fchmodat4) that
> > supports a flag argument, as specified by POSIX.  It supports
> > the same two flags as fchownat: AT_SYMLINK_NOFOLLOW and AT_EMPTY_PATH.
> 
> I don't think it's possible to emulate AT_EMPTY_PATH in user space, so I 
> wonder if this could be applied, and if not, why.  Thanks.

The original patch no longer applies because there were some
minor changes to fs/open.c.  I'll fix up the patch and send it in.

I too would very much like to see this applied, or to know why it can't
be.

Thanks,
Andrew
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