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Message-ID: <20180614141118.GG12032@localhost.localdomain>
Date: Thu, 14 Jun 2018 16:11:18 +0200
From: Juri Lelli <juri.lelli@...hat.com>
To: Quentin Perret <quentin.perret@....com>
Cc: Steven Rostedt <rostedt@...dmis.org>, peterz@...radead.org,
mingo@...hat.com, linux-kernel@...r.kernel.org,
luca.abeni@...tannapisa.it, claudio@...dence.eu.com,
tommaso.cucinotta@...tannapisa.it, bristot@...hat.com,
mathieu.poirier@...aro.org, lizefan@...wei.com,
cgroups@...r.kernel.org
Subject: Re: [PATCH v4 1/5] sched/topology: Add check to backup comment about
hotplug lock
On 14/06/18 14:58, Quentin Perret wrote:
[...]
> Hmm not sure if this can help but I think that rebuild_sched_domains()
> does _not_ take the hotplug lock before calling partition_sched_domains()
> when CONFIG_CPUSETS=n. But it does take it for CONFIG_CPUSETS=y.
Did you mean cpuset_mutex?
cpu_hotplug_lock seems to be the problem here..
Can't seem to follow otherwise. :-(
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