linux-kernel - Re: [PATCH 1/1] Userspace I/O (UIO): Add support for userspace DMA

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Date:	Fri, 12 Dec 2008 18:25:12 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Edward Estabrook <edward.estabrook.lkml@...il.com>
Cc:	"Hans J. Koch" <hjk@...utronix.de>, edward_estabrook@...lent.com,
	linux-kernel@...r.kernel.org, gregkh@...e.de,
	edward.estabrook@...il.com, hugh <hugh@...itas.com>,
	linux-mm <linux-mm@...ck.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 1/1] Userspace I/O (UIO): Add support for userspace DMA

On Fri, 2008-12-05 at 16:32 -0800, Edward Estabrook wrote:
> > Well, UIO already rapes the mmap interface by using the "offset" parameter to
> > pass in the number of the mapping.
> 
> Exactly.

Had I known about it then, I'd NAK'd it, but I guess now that its
already merged changing it will be hard :/

Also, having done something bad in the past doesn't mean you can
continue doing the wrong thing.

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