linux-kernel - Re: [RFC][PATCH 0/5] Introduce checks for preemptable code for this_cpu

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Message-ID: <1316538541.13664.60.camel@twins>
Date:	Tue, 20 Sep 2011 19:09:01 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Christoph Lameter <cl@...two.org>, Valdis.Kletnieks@...edu,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Subject: Re: [RFC][PATCH 0/5] Introduce checks for preemptable code for
 this_cpu_read/write()

On Tue, 2011-09-20 at 12:56 -0400, Steven Rostedt wrote:
> random_cpu_*()    // Thomas's idea

I like this one best..

But you forgot do deal with the irqsafe_cpu() crap, that's the same
brainfart as this_cpu() but more expensive because it frobs IRQ state.
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