linux-kernel - Re: [PATCH 1/3, RFC] misc char dev BKL pushdown

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Date:	Tue, 20 May 2008 09:46:04 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Jonathan Corbet <corbet@....net>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Thomas Gleixner <tglx@...utronix.de>,
	Alexander Viro <viro@....linux.org.uk>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3, RFC] misc char dev BKL pushdown

On Tue, 20 May 2008 01:26:28 +0200
Arnd Bergmann <arnd@...db.de> wrote:

> The Big Kernel Lock has been pushed down from chardev_open
> to misc_open, this change moves it to the individual misc
> driver open functions.
> 
> As before, the change was purely mechanical, most drivers
> should actually not need the BKL. In particular, we still
> hold the misc_mtx() while calling the open() function
> The patch should probably be split into one changeset
> per driver.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Acked-by: Alan Cox <alan@...hat.com>
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