linux-kernel - Re: [PATCH 6/6] procfs: Kill the bkl in ioctl

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Message-ID: <20100331225500.3ed98c1f@lxorguk.ukuu.org.uk>
Date:	Wed, 31 Mar 2010 22:55:00 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	Alexey Dobriyan <adobriyan@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	John Kacur <jkacur@...hat.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Al Viro <viro@...iv.linux.org.uk>, Ingo Molnar <mingo@...e.hu>
Subject: Re: [PATCH 6/6] procfs: Kill the bkl in ioctl

> The recursive users that I've removed in my series are the block, tty,
> input and sound subsystems, as well as the init code.

There are some very subtle recursive cases in the tty code - hangup
triggered close and consoles being an absolute gem I've just had to debug
in my lock removal bits so far...

Alan
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