From: Pavel Machek <pavel@ucw.cz>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: jlayton@redhat.com, ebiederm@xmission.com,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH] procfs: make /proc style symlinks behave like "normal" symlinks
Date: Fri, 20 Nov 2009 10:51:29 +0100 [thread overview]
Message-ID: <20091120095129.GD11212@elf.ucw.cz> (raw)
In-Reply-To: <E1NBPq8-0001D7-F9@pomaz-ex.szeredi.hu>
On Fri 2009-11-20 10:31:40, Miklos Szeredi wrote:
> On Thu, 19 Nov 2009, Pavel Machek wrote:
> > > Adding the missing revalidations is fine, but I don't believe that
> > > helps to fix Pavel's issue. I'll go back and take a more careful look
> > > at the suggestion that Miklos made and see whether it makes sense to
> > > implement a new FS_* flag for this, and see what it'll take to fix
> > > Pavel's issue.
>
> What is this "Pavel's issue"?
The one we were talking about, see bugtraq.
> > One posibility would be to make open(/proc/XX/fd/XX) behave like
> > dup(). That should solve the NFS problems, too, no?
>
> You mean, reuse the old "struct file" for the new open? Or what?
Aha, dup() results in file position being shared. You are right,
that's not going to fly :-(.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
prev parent reply other threads:[~2009-11-20 9:51 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-19 13:44 [PATCH] procfs: make /proc style symlinks behave like "normal" symlinks Jeff Layton
2009-11-19 17:07 ` Eric W. Biederman
2009-11-19 18:28 ` Jeff Layton
2009-11-19 18:57 ` Eric W. Biederman
2009-11-19 19:35 ` Jeff Layton
2009-11-19 21:31 ` Eric W. Biederman
2009-11-19 21:39 ` Pavel Machek
2009-11-19 21:56 ` Eric W. Biederman
2009-11-19 22:30 ` Pavel Machek
2009-11-20 9:31 ` Miklos Szeredi
2009-11-20 9:51 ` Pavel Machek [this message]
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