linux-kernel - Re: [PATCH v2 1/2] nohz: add tick_nohz_full_clear_cpus() and _set

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Message-ID: <20150407093346.GA10436@gmail.com>
Date:	Tue, 7 Apr 2015 11:33:46 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Chris Metcalf <cmetcalf@...hip.com>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	"Peter Zijlstra (Intel)" <peterz@...radead.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] nohz: add tick_nohz_full_clear_cpus() and
 _set_cpus() APIs


* Chris Metcalf <cmetcalf@...hip.com> wrote:

> On 04/06/2015 02:29 PM, Frederic Weisbecker wrote:
> >On Mon, Apr 06, 2015 at 02:16:44PM -0400,cmetcalf@...hip.com  wrote:
> >>>From: Chris Metcalf<cmetcalf@...hip.com>
> >>>
> >>>The "clear" API is useful, for example, to modify a cpumask to avoid
> >>>the nohz cores so that interrupts aren't sent to them.
> >>>
> >>>Likewise the "set" API is useful to modify a cpumask indicating some
> >>>special nohz-type functionality so that the nohz cores are
> >>>automatically added to that set.
> >>>
> >>>Signed-off-by: Chris Metcalf<cmetcalf@...hip.com>
> >>>---
> >>>Frederic, if you could ack this patch (and maybe the next) before
> >>>I ask for it to be pulled into the timer tree that would be great.
> >>>I will wait a few days before asking in case anyone else has any
> >>>other issues or would like to provide an Acked-by.
> >Sure, or better yet I should take them since they are full nohz code.
> >And I have a pending pile to pull-request to timer tree.
> 
> That would be great, thanks.

That's fine with me too!

My main worry was not about the specific patches but about the route 
they take: it gets better review and better response to future bugs if 
it goes through the usual maintainer tree (Frederic's).

Thanks,

	Ingo
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