From: Alan Cox <alan@redhat.com>
To: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@redhat.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@osdl.org>
Subject: Re: PATCH: tty locking for 2.6.9rc2
Date: Wed, 15 Sep 2004 12:30:51 -0400 [thread overview]
Message-ID: <20040915163051.GA9096@devserv.devel.redhat.com> (raw)
In-Reply-To: <1095265595.2924.27.camel@deimos.microgate.com>
On Wed, Sep 15, 2004 at 11:26:35AM -0500, Paul Fulghum wrote:
> I tried this patch and can't change line disciplines.
> The user program waits forever on ioctl(TIOCSETD).
> I am going to add printk statements to
Is the tty currently in use - that implies maybe an ldisc leak
> Each line discipline has a refcount.
> This single refcount is modified by all
> entities using that line discipline.
Nope. tty->ldisc is a -copy- of the ldisc structure rather than a
pointer. It has always been that way
struct tty_struct {
int magic;
struct tty_driver *driver;
int index;
struct tty_ldisc ldisc;
...
next prev parent reply other threads:[~2004-09-15 16:33 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-14 16:34 PATCH: tty locking for 2.6.9rc2 Alan Cox
2004-09-15 16:26 ` Paul Fulghum
2004-09-15 16:30 ` Alan Cox [this message]
2004-09-15 18:54 ` Paul Fulghum
2004-09-15 20:08 ` Alan Cox
2004-09-15 20:23 ` Paul Fulghum
2004-09-15 20:40 ` Alan Cox
2004-09-15 20:53 ` Paul Fulghum
-- strict thread matches above, loose matches on Subject: below --
2004-09-24 0:36 Ulisses
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