From: David Newall <david@davidnewall.com>
To: Al Viro <viro@ftp.linux.org.uk>
Cc: jaroslav.sykora@gmail.com,
Jan Engelhardt <jengelh@computergmbh.de>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [RFC PATCH 0/5] Shadow directories
Date: Fri, 19 Oct 2007 12:27:16 +0930 [thread overview]
Message-ID: <47181D0C.3040504@davidnewall.com> (raw)
In-Reply-To: <20071018204703.GQ8181@ftp.linux.org.uk>
Al Viro wrote:
> On Fri, Oct 19, 2007 at 06:07:45AM +0930, David Newall wrote:
>
>>> considerations of this whole scheme. Linux, like most Unix systems,
>>> has never allowed hard links to directories for a number of reasons;
>>>
>> The claim is wrong. UNIX systems have traditionally allowed the
>> superuser to create hard links to directories. See link(2) for 2.10BSD
>> <http://www.freebsd.org/cgi/man.cgi?query=link&sektion=2&manpath=2.10+BSD>.
>> Having got that wrong throws doubt on the argument; perhaps a path can
>> simultaneously be a file and a directory.
>>
>
> Learn to read. Linux has never allowed that. Most of the Unix systems
> do not allow that.
I did read the claim and it is ambiguous, in that it can reasonably be
read to mean that most UNIX systems never allowed such links, which is
wrong. All UNIX systems allowed it until relatively recently.
next prev parent reply other threads:[~2007-10-19 2:57 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-18 15:21 [RFC PATCH 0/5] Shadow directories Jaroslav Sykora
2007-10-18 15:22 ` [RFC PATCH 1/5] Shadow directories: headers Jaroslav Sykora
2007-10-18 15:23 ` [RFC PATCH 2/5] Shadow directories: core Jaroslav Sykora
2007-10-18 15:25 ` [RFC PATCH 3/5] Shadow directories: chdir, fchdir Jaroslav Sykora
2007-10-18 15:26 ` [RFC PATCH 4/5] Shadow directories: procfs Jaroslav Sykora
2007-10-18 15:28 ` [RFC PATCH 5/5] Shadow directories: documentation Jaroslav Sykora
2007-10-18 16:05 ` [RFC PATCH 0/5] Shadow directories Jan Engelhardt
2007-10-18 17:07 ` Jaroslav Sykora
2007-10-18 17:10 ` Jan Engelhardt
2007-10-18 20:10 ` Jaroslav Sykora
2007-10-18 20:12 ` Jan Engelhardt
[not found] ` <4717BBBB.6040205@davidnewall.com>
2007-10-18 20:09 ` Jan Engelhardt
2007-10-18 20:37 ` David Newall
2007-10-18 20:47 ` Al Viro
2007-10-19 2:57 ` David Newall [this message]
2007-10-19 5:37 ` Al Viro
2007-10-18 16:30 ` David Newall
2007-10-18 16:33 ` David Newall
2007-10-18 16:53 ` David Newall
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