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Message-ID: <alpine.DEB.2.10.1405300851490.8240@gentwo.org>
Date: Fri, 30 May 2014 08:52:42 -0500 (CDT)
From: Christoph Lameter <cl@...two.org>
To: Frederic Weisbecker <fweisbec@...il.com>
cc: Andrew Morton <akpm@...ux-foundation.org>,
Gilad Ben-Yossef <gilad@...yossef.com>,
Thomas Gleixner <tglx@...utronix.de>,
Tejun Heo <tj@...nel.org>, John Stultz <johnstul@...ibm.com>,
Hakan Akkan <hakanakkan@...il.com>,
Max Krasnyansky <maxk@...lcomm.com>,
"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
linux-kernel@...r.kernel.org, linux-mm@...ck.org, hughd@...gle.com,
viresh.kumar@...aro.org, hpa@...or.com, mingo@...nel.org,
peterz@...radead.org, Mike Frysinger <vapier@...too.org>,
Minchan Kim <minchan.kim@...il.com>
Subject: Re: [PATCH] vmstat: on demand updates from differentials V7
On Fri, 30 May 2014, Frederic Weisbecker wrote:
> > + cpu_stat_off = kmalloc(cpumask_size(), GFP_KERNEL);
> > + cpumask_copy(cpu_stat_off, cpu_online_mask);
>
> Actually looks like you can as well remove that cpumask and use
> cpu_online_mask directly.
That would mean I would offline cpus that do not need the
vmstat worker?
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