linux-kernel - Re: [PATCH] mISDN cleanup user interface

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Message-Id: <1217444892.3454.28.camel@pmac.infradead.org>
Date:	Wed, 30 Jul 2008 20:08:12 +0100
From:	David Woodhouse <dwmw2@...radead.org>
To:	Karsten Keil <kkeil@...e.de>
Cc:	isdn4linux@...tserv.isdn4linux.de,
	Marcel Holtmann <marcel@...tmann.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mISDN cleanup user interface

On Wed, 2008-07-30 at 19:51 +0200, Karsten Keil wrote:
> > Are you later intending to use the bitmap to mark them as busy/free?
> 
> Yes exactely, and this was the reason why the original code (which used one u_long
> only as channelmap) already used the bit operators, since for a channel allocator
> you should be atomic, but since we are now allow 127 channels we need proper
> locking for the busy/free map anyways and so we do not need atomic operation
> here.

OK, that makes sense then. Your latest patch looks good in that case.

-- 
dwmw2

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