linux-kernel - Re: [PATCH] uio: make phys maps optionally cacheable

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Message-ID: <20111130145742.GC15616@local>
Date:	Wed, 30 Nov 2011 15:57:42 +0100
From:	"Hans J. Koch" <hjk@...sjkoch.de>
To:	Jean-Francois Dagenais <jeff.dagenais@...il.com>
Cc:	"Hans J. Koch" <hjk@...sjkoch.de>, Greg KH <gregkh@...e.de>,
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] uio: make phys maps optionally cacheable

On Wed, Nov 30, 2011 at 09:11:31AM -0500, Jean-Francois Dagenais wrote:

[...]
> > 
> > OK, but I won't accept a change to the UIO core without an in-kernel user.
> > Please post a driver that actually needs this. This was already discussed
> > four weeks ago, see here: https://lkml.org/lkml/2011/10/28/247
> Well, my employer is paying for my time to get our product working, not to maintain
> the kernel. I have succeeded in arguing that the the changes I make to the kernel in
> order to make our branch of the kernel work could benefit everyone, and when the
> kernel get better, it's more adopted, then more support comes, bla bla... right.

The embedded Linux nightmare... More arguments here:

http://lwn.net/Articles/232379/

[...]
>  Everyone wins if you apply Kumar's patch.

It won't be applied without an in-kernel user. Same story.

Thanks,
Hans
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