linux-kernel - Re: [RESEND PATCH 1/2] IRQ: use cpu_possible_mask rather than online_mask in setup

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Message-ID: <1286017262.2144.90.camel@laptop>
Date:	Sat, 02 Oct 2010 13:01:02 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Nishanth Aravamudan <nacc@...ibm.com>
Cc:	miltonm@....com, Thomas Gleixner <tglx@...utronix.de>,
	Ian Campbell <ian.campbell@...rix.com>,
	Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@...el.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [RESEND PATCH 1/2] IRQ: use cpu_possible_mask rather than
 online_mask in setup_affinity

On Fri, 2010-10-01 at 14:26 -0700, Nishanth Aravamudan wrote:
> The use of online_mask requires architecture code to be hotplug-aware to
> account for IRQ round-robin'ing. 

Architectures that support hotplug should be hotplug aware, that's not
too much to ask imho.

> With user-driven dynamic SMT,

What's that?

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