From: Cyrill Gorcunov <gorcunov@openvz.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
LKML <linux-kernel@vger.kernel.org>,
"H. Peter Anvin" <hpa@zytor.com>,
Pavel Emelyanov <xemul@parallels.com>,
Jiri Slaby <jslaby@suse.cz>
Subject: Re: [RFC] tty: Add get- ioctls to fetch tty status
Date: Sun, 23 Sep 2012 00:11:44 +0400 [thread overview]
Message-ID: <20120922201144.GD11610@moon> (raw)
In-Reply-To: <20120922200731.GD14004@kroah.com>
On Sat, Sep 22, 2012 at 01:07:31PM -0700, Greg Kroah-Hartman wrote:
> > drivers/tty/pty.c | 45 ++++++++++++++++++++++++++++++++++++++++++++-
> > 1 file changed, 44 insertions(+), 1 deletion(-)
> >
> > Index: tty.git/drivers/tty/pty.c
> > ===================================================================
> > --- tty.git.orig/drivers/tty/pty.c
> > +++ tty.git/drivers/tty/pty.c
> > @@ -283,6 +283,46 @@ done:
> > return 0;
> > }
> >
> > +static ssize_t pty_show_state(struct device *dev,
> > + struct device_attribute *attr,
> > + char *buf)
> > +{
> > + struct tty_struct *tty = dev_get_drvdata(dev);
> > + int locked, exclusive, packet;
> > +
> > + tty_lock(tty);
> > + locked = test_bit(TTY_PTY_LOCK, &tty->flags);
> > + exclusive = test_bit(TTY_EXCLUSIVE, &tty->flags);
> > + packet = tty->packet;
> > + tty_unlock(tty);
> > +
> > + return snprintf(buf, PAGE_SIZE, "locked: %d exclusive: %d packet: %d\n",
> > + locked, exclusive, packet);
> > +}
>
> Sysfs is one value per file, you have three values here, please make 3
> files.
>
> And document them in Documentation/ABI/.
Hmm, sure Greg, I'll update. Thanks!
next prev parent reply other threads:[~2012-09-22 20:11 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-13 9:56 [RFC] tty: Add get- ioctls to fetch tty status Cyrill Gorcunov
2012-09-13 11:46 ` Jiri Slaby
2012-09-13 11:51 ` Cyrill Gorcunov
2012-09-13 12:51 ` Alan Cox
2012-09-13 12:54 ` Cyrill Gorcunov
2012-09-13 16:25 ` Alan Cox
2012-09-13 16:41 ` Cyrill Gorcunov
2012-09-22 18:06 ` Cyrill Gorcunov
2012-09-22 20:07 ` Greg Kroah-Hartman
2012-09-22 20:11 ` Cyrill Gorcunov [this message]
2012-09-22 21:52 ` Cyrill Gorcunov
2012-09-23 1:09 ` Greg Kroah-Hartman
2012-09-23 6:40 ` Cyrill Gorcunov
2012-09-23 14:46 ` H. Peter Anvin
2012-09-23 15:21 ` Cyrill Gorcunov
2012-09-24 14:14 ` Cyrill Gorcunov
2012-09-27 14:05 ` Cyrill Gorcunov
2012-09-27 14:14 ` Alan Cox
2012-09-27 14:14 ` Cyrill Gorcunov
2012-09-27 14:17 ` H. Peter Anvin
2012-09-27 14:21 ` Cyrill Gorcunov
2012-09-27 14:43 ` H. Peter Anvin
2012-09-27 14:48 ` Cyrill Gorcunov
2012-09-27 15:05 ` H. Peter Anvin
2012-09-27 15:13 ` Alan Cox
2012-09-27 15:23 ` Cyrill Gorcunov
2012-09-27 16:00 ` Alan Cox
2012-09-27 16:06 ` Cyrill Gorcunov
2012-09-27 15:47 ` Cyrill Gorcunov
2012-09-22 23:15 ` Alan Cox
2012-09-23 1:43 ` Eric W. Biederman
2012-09-23 6:40 ` Cyrill Gorcunov
2012-09-23 14:44 ` H. Peter Anvin
2012-09-23 15:22 ` Cyrill Gorcunov
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