linux-kernel - Re: [PATCH] kill empty chardev open/release methods

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Date:	Sun, 18 May 2008 20:58:23 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	corbet@....net (Jonathan Corbet)
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] kill empty chardev open/release methods


> As it turns out, a misc driver will still be OK because the BKL has not
> (yet) been pushed past misc_open().  What this does mean, though, is
> that all of those empty and trivial open functions need to be
> revisited.  I thought this looked too easy the first time through...

I think it would be best to make them lock/unlock kernel in the first
pass and then work through them. The BKL can be subtle and evil, but as I
brought it into the world I guess I must banish it ;)


Alan
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