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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Arnd Bergmann <arnd@arndb.de>
Cc: LKML <linux-kernel@vger.kernel.org>, Greg KH <gregkh@suse.de>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	John Kacur <jkacur@redhat.com>, Al Viro <viro@zeniv.linux.org.uk>,
	Ingo Molnar <mingo@elte.hu>
Subject: Re: [RFC 0/9] BKL conversion in TTY drivers
Date: Tue, 30 Mar 2010 23:37:59 +0100	[thread overview]
Message-ID: <20100330233759.00877e80@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <1269982580-9361-1-git-send-email-arnd@arndb.de>

> This means we are still safe, because there is no code
> left that the new BTM fails to serialize with.

We hope. I'm currently poking at sorting out the locking properly and
quite frankly the locking rules for the current tty reference have me
baffled. It clearly works as we've not got a pile of dumps in the
bugzilla tree but its also quite a mystery *how*.


  parent reply	other threads:[~2010-03-30 22:34 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-30 20:56 Arnd Bergmann
2010-03-30 20:56 ` [RFC 1/9] tty: replace BKL with a new tty_lock Arnd Bergmann
2010-03-30 22:23   ` Frederic Weisbecker
2010-03-30 20:56 ` [RFC 2/9] tty: make atomic_write_lock release tty_lock Arnd Bergmann
2010-03-30 20:56 ` [RFC 3/9] tty: make tty_port->mutex nest under tty_lock Arnd Bergmann
2010-03-30 20:56 ` [RFC 4/9] tty: make termios mutex " Arnd Bergmann
2010-03-30 20:56 ` [RFC 5/9] tty: make ldisc_mutex " Arnd Bergmann
2010-03-30 20:56 ` [RFC 6/9] tty: never hold tty_lock() while getting tty_mutex Arnd Bergmann
2010-03-30 20:56 ` [RFC 7/9] ppp: use big tty mutex Arnd Bergmann
2010-03-31  4:37   ` Américo Wang
2010-03-31  7:39     ` Arnd Bergmann
2010-03-30 20:56 ` [RFC 8/9] tty: release tty lock when blocking Arnd Bergmann
2010-03-30 20:56 ` [RFC 9/9] tty: implement BTM as mutex instead of BKL Arnd Bergmann
2010-03-30 22:50   ` Frederic Weisbecker
2010-03-30 22:37 ` Alan Cox [this message]
2010-03-31  7:57   ` [RFC 0/9] BKL conversion in TTY drivers Arnd Bergmann
2010-03-31 10:02     ` Alan Cox
2010-04-01 12:51       ` Arnd Bergmann
2010-04-01 14:17         ` Alan Cox
2010-04-01 15:24           ` Greg KH
2010-04-01 19:10           ` Arnd Bergmann

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