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Date: Wed, 31 Mar 2010 22:55:00 +0100
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
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       Al Viro <viro@zeniv.linux.org.uk>, Ingo Molnar <mingo@elte.hu>
Subject: Re: [PATCH 6/6] procfs: Kill the bkl in ioctl
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> 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