From: Taral <taral@taral.net>
To: "Albert D. Cahalan" <acahalan@cs.uml.edu>
Cc: linux-kernel@vger.kernel.org
Subject: Re: tty->name conversion?
Date: Fri, 13 Jul 2001 14:34:26 -0500 [thread overview]
Message-ID: <20010713143426.B7873@taral.net> (raw)
In-Reply-To: <200107131743.f6DHhGc186373@saturn.cs.uml.edu>
In-Reply-To: <200107131743.f6DHhGc186373@saturn.cs.uml.edu>
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On Fri, Jul 13, 2001 at 01:43:16PM -0400, Albert D. Cahalan wrote:
> Taral writes:
>
> > I noticed that ps still relies on device numbers to determine tty, since
> > /proc/*/stat only exports the device number. Is there any way to get the
> > device name? I noticed that it is not present in tty_struct anywhere
> > (proc_pid_stat() uses task->tty->device, which is a kdev_t).
> >
> > This would be useful to consider if we ever intend to create real
> > unnumbered character/block devices.
>
> This isn't quite true, at least for the version shipped with Debian.
<snip>
Thanks for your reply. It still remains, however, that for processes
that you do not own, it has to guess, viz:
319 taral vc/1 S Jul12 -zsh
320 root tty2 S Jul12 /sbin/getty 38400 vc/2
Notice that the getty is listed as tty2, even though it opened
/dev/vc/2.
--
Taral <taral@taral.net>
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"Any technology, no matter how primitive, is magic to those who don't
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prev parent reply other threads:[~2001-07-13 19:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-05 7:36 tty->name conversion? Taral
2001-07-13 17:43 ` Albert D. Cahalan
2001-07-13 19:34 ` Taral [this message]
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