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From: Oleg Nesterov <oleg@redhat.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: heiko.carstens@de.ibm.com, linux-kernel@vger.kernel.org,
	Tejun Heo <tj@kernel.org>, Ingo Molnar <mingo@kernel.org>,
	Rik van Riel <riel@redhat.com>
Subject: Re: [RFC][PATCH] sched: Start stopper early
Date: Wed, 7 Oct 2015 15:24:03 +0200	[thread overview]
Message-ID: <20151007132403.GA24924@redhat.com> (raw)
In-Reply-To: <20151007132007.GA24540@redhat.com>

Damn sorry for noise ;)

On 10/07, Oleg Nesterov wrote:
>
> +void stop_machine_park(int cpu)
> +{
> +	struct cpu_stopper *stopper = &per_cpu(cpu_stopper, cpu);
> +
> +	spin_lock(&stopper->lock);
> +	stopper->enabled = false;
> +	spin_unlock(&stopper->lock);

Of course, it should also do kthread_park(current).

Oleg.


  reply	other threads:[~2015-10-07 13:27 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-07  8:41 [RFC][PATCH] sched: Start stopper early Peter Zijlstra
2015-10-07 12:30 ` Oleg Nesterov
2015-10-07 12:38   ` Peter Zijlstra
2015-10-07 13:20     ` Oleg Nesterov
2015-10-07 13:24       ` Oleg Nesterov [this message]
2015-10-07 13:36       ` kbuild test robot
2015-10-08 14:50 ` [PATCH 0/3] (Was: [RFC][PATCH] sched: Start stopper early) Oleg Nesterov
2015-10-08 14:51   ` [PATCH 1/3] stop_machine: ensure that a queued callback will be called before cpu_stop_park() Oleg Nesterov
2015-10-14 15:34     ` Peter Zijlstra
2015-10-14 19:03       ` Oleg Nesterov
2015-10-14 20:32         ` Peter Zijlstra
2015-10-15 17:02           ` Oleg Nesterov
2015-10-16 10:49             ` Peter Zijlstra
2015-10-20  9:32     ` [tip:sched/core] stop_machine: Ensure " tip-bot for Oleg Nesterov
2015-10-08 14:51   ` [PATCH 2/3] stop_machine: introduce __cpu_stop_queue_work() and cpu_stop_queue_two_works() Oleg Nesterov
2015-10-20  9:33     ` [tip:sched/core] stop_machine: Introduce " tip-bot for Oleg Nesterov
2015-10-08 14:51   ` [PATCH 3/3] stop_machine: change cpu_stop_queue_two_works() to rely on stopper->enabled Oleg Nesterov
2015-10-08 15:04     ` Peter Zijlstra
2015-10-08 15:59       ` Oleg Nesterov
2015-10-08 16:08         ` Oleg Nesterov
2015-10-08 17:01     ` [PATCH v2 " Oleg Nesterov
2015-10-09 16:37       ` Peter Zijlstra
2015-10-09 16:40         ` Oleg Nesterov
2015-10-20  9:33       ` [tip:sched/core] stop_machine: Change " tip-bot for Oleg Nesterov
2015-10-08 18:05 ` [RFC][PATCH] sched: Start stopper early Oleg Nesterov
2015-10-08 18:47   ` Oleg Nesterov
2015-10-09 16:00 ` [PATCH 0/3] make stopper threads more "selfparking" Oleg Nesterov
2015-10-09 16:00   ` [PATCH 1/3] stop_machine: kill smp_hotplug_thread->pre_unpark, introduce stop_machine_unpark() Oleg Nesterov
2015-10-20  9:33     ` [tip:sched/core] stop_machine: Kill smp_hotplug_thread-> pre_unpark, " tip-bot for Oleg Nesterov
2015-10-09 16:00   ` [PATCH 2/3] stop_machine: kill cpu_stop_threads->setup() and cpu_stop_unpark() Oleg Nesterov
2015-10-20  9:34     ` [tip:sched/core] stop_machine: Kill " tip-bot for Oleg Nesterov
2015-10-09 16:00   ` [PATCH 3/3] sched: start stopper early Oleg Nesterov
2015-10-09 16:49     ` Oleg Nesterov
2015-10-20  9:34     ` [tip:sched/core] sched: Start " tip-bot for Peter Zijlstra
2015-10-16  8:22 ` [RFC][PATCH] " Heiko Carstens
2015-10-16  9:57   ` Peter Zijlstra
2015-10-16 12:01     ` Heiko Carstens
2015-10-26 14:24       ` Michael Holzheu
2015-10-26 20:20         ` Peter Zijlstra

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