linux-kernel - Re: [PATCH 0/2] jump label: 2.6.38 updates

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Message-ID: <AANLkTinbKhZXYHjFD5fDXzCt8myiQ_GrVNgKGaMqO9Ot@mail.gmail.com>
Date:	Mon, 14 Feb 2011 12:23:44 -0500
From:	Mike Frysinger <vapier.adi@...il.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Jason Baron <jbaron@...hat.com>,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	hpa@...or.com, mingo@...e.hu, tglx@...utronix.de,
	andi@...stfloor.org, roland@...hat.com, rth@...hat.com,
	masami.hiramatsu.pt@...achi.com, fweisbec@...il.com,
	avi@...hat.com, davem@...emloft.net, sam@...nborg.org,
	ddaney@...iumnetworks.com, michael@...erman.id.au,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] jump label: 2.6.38 updates

On Mon, Feb 14, 2011 at 12:18, Steven Rostedt wrote:
> blackfin:
> #define atomic_read(v)  __raw_uncached_fetch_asm(&(v)->counter)
>
> blackfin, seems to be doing quite a lot. Not sure if it is required, but
> that may need a bit of investigating to understand why it does the
> raw_uncached thing.

this is only for SMP ports, and it's due to our lack of
cache-coherency.  for non-SMP, we use asm-generic.
-mike
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