linux-kernel - Re: [PATCH, RFC] char dev BKL pushdown

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Date:	Tue, 20 May 2008 01:07:49 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Jonathan Corbet <corbet@....net>
Cc:	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>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Alexander Viro <viro@....linux.org.uk>,
	linux-kernel@...r.kernel.org, Wim Van Sebroeck <wim@...ana.be>
Subject: Re: [PATCH, RFC] char dev BKL pushdown

On Sunday 18 May 2008, Jonathan Corbet wrote:
> There's a few intermediate dispatcher levels like this, actually.
> Lots of video drivers get called behind video_open(), usb drivers from
> usb_open(), etc.  Not much to be done but to push things down one level
> at a time.

I've given it a try for all the misc drivers that have an open() function.
The vast majority of them are actually watchdog drivers, all of which
register as a misc device by themselves. You seem to already have a script
to turn per-file changes into a patch each, so I'm sending you two patches:
one for all the watchdog drivers (maybe Wim can take care of that as well)
and one for all the other misc drivers (this one needs to be split).

	Arnd <><

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