From mboxrd@z Thu Jan  1 00:00:00 1970
From: Al Viro <viro@ZenIV.linux.org.uk>
Subject: Re: [PATCHv10 man-pages 5/5] execveat.2: initial man page for
 execveat(2)
Date: Fri, 9 Jan 2015 23:36:44 +0000
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To: Rich Felker <dalias@aerifal.cx>
Cc: David Drysdale <drysdale@google.com>, "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>, "Eric W. Biederman" <ebiederm@xmission.com>, Andy Lutomirski <luto@amacapital.net>, Meredydd Luff <meredydd@senatehouse.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, Andrew Morton <akpm@linux-foundation.org>, David Miller <davem@davemloft.net>, Thomas Gleixner <tglx@linutronix.de>, Stephen Rothwell <sfr@canb.auug.org.au>, Oleg Nesterov <oleg@redhat.com>, Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>, Kees Cook <keescook@chromium.org>, Arnd Bergmann <arnd@arndb.de>, Christoph Hellwig <hch@infradead.org>, X86 ML <x86@kernel.org>, linux-arch <linux-arch@vger.kernel.org>, Linux API <linux-api@vger.kernel.org>, sparclinux@vger.kernel.org
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On Fri, Jan 09, 2015 at 06:12:48PM -0500, Rich Felker wrote:

> I'm not sure where you're disagreeing with me. open of procfs symlinks
> does not resolve the symlink and open the resulting pathname. They are
> "magic symlinks" which are bound to the inode of the open file. I
> don't see why this action, which is already special for magic
> symlinks, can't check a flag on the magic symlink and possibly close
> the corresponding file descriptor as part of its action.

_What_ action?  ->follow_link()?  As in "the same thing that e.g.
stat(2) would trigger"?