Message-ID: <1365094476.2609.123.camel@laptop>
Subject: Re: [PATCH v2 2/3] mutex: add support for reservation style locks,
 v2
From: Peter Zijlstra <peterz@infradead.org>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>,
        linux-arch@vger.kernel.org, daniel.vetter@ffwll.ch, x86@kernel.org,
        linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        linaro-mm-sig@lists.linaro.org, robclark@gmail.com, tglx@linutronix.de,
        mingo@elte.hu, linux-media@vger.kernel.org
Date: Thu, 04 Apr 2013 18:54:36 +0200
In-Reply-To: <20130404133123.GW2228@phenom.ffwll.local>
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On Thu, 2013-04-04 at 15:31 +0200, Daniel Vetter wrote:
> Well, it was a good read and I'm rather happy that we agree on the
> ww_ctx
> thing (whatever it's called in the end), even though we have slightly
> different reasons for it.

Yeah, I tried various weirdness to get out from under it, but the whole
progress/fairness thing made it rather hard. Ideally you'd be able to
use some existing scheduler state since its the same goal, but the
whole wakeup-retry muck makes that hard.

> I don't really have a useful idea to make the retry handling for users
> more rusty-compliant though, and I'm still unhappy with all current
> naming
> proposals ;-)

Ah, naming,.. yeah I'm not too terribly attached to most of them. I
just want to avoid something that's reasonably well known to mean
something different.

Furthermore, since we use the wound/wait symmetry breaking it would
make sense for that to appear somewhere in the name.


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