From: Andrew Morton <akpm@linux-foundation.org>
To: Dave Airlie <airlied@linux.ie>
Cc: linux-kernel@vger.kernel.org
Subject: Re: cmpxchg is not available to generic code
Date: Thu, 19 Jul 2007 01:36:15 -0700 [thread overview]
Message-ID: <20070719013615.948c52d6.akpm@linux-foundation.org> (raw)
In-Reply-To: <Pine.LNX.4.64.0707190917330.21859@skynet.skynet.ie>
On Thu, 19 Jul 2007 09:19:10 +0100 (IST) Dave Airlie <airlied@linux.ie> wrote:
> >
> >> they need to grow a userpsace
> >> cmpxchg as davem mentioned to go along with this, changing the drm now
> >> isn't possible due to backwards compat..
> >
> > For reference purposes, that position is not acceptable. We _never_ accept the
> > "oh I can't change my proposed kernel interface because I already have
> > userspace relying on it" argument.
>
> Yes it is, I thought breaking userspace API was the worst crime in kernel
> history, (unless you are sysfs...) the userspace DRM has been around since
> 2.2 days at least, so there are lots of legacy userspaces to break..
oh, sorry, I thought this cmpxchg stuff was newly-added.
I guess something changed which has now made DRM available under arm
allmodconfig.
prev parent reply other threads:[~2007-07-19 8:37 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-19 7:05 cmpxchg is not available to generic code Andrew Morton
2007-07-19 7:27 ` David Miller
2007-07-19 8:15 ` Dave Airlie
2007-07-19 8:21 ` Andrew Morton
2007-07-19 8:23 ` Dave Airlie
2007-07-23 6:48 ` Nick Piggin
2007-07-19 20:54 ` David Miller
2007-07-19 20:58 ` David Miller
2007-07-19 8:02 ` Dave Airlie
2007-07-19 8:10 ` Andrew Morton
2007-07-19 8:19 ` Dave Airlie
2007-07-19 8:36 ` Andrew Morton [this message]
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