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Message-ID: <1464875703.16365.116.camel@redhat.com>
Subject: Re: [PATCH] sched/cputime: Fix steal time accouting during cpu
 hotplug
From: Rik van Riel <riel@redhat.com>
To: Wanpeng Li <kernellwp@gmail.com>, linux-kernel@vger.kernel.org,
        kvm@vger.kernel.org
Cc: Wanpeng Li <wanpeng.li@hotmail.com>, Ingo Molnar <mingo@kernel.org>,
        "Peter Zijlstra (Intel)" <peterz@infradead.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Frederic Weisbecker <fweisbec@gmail.com>,
        Paolo Bonzini <pbonzini@redhat.com>, Radim <rkrcmar@redhat.com>
Date: Thu, 02 Jun 2016 09:55:03 -0400
In-Reply-To: <1464845939-9992-1-git-send-email-wanpeng.li@hotmail.com>
References: <1464845939-9992-1-git-send-email-wanpeng.li@hotmail.com>
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On Thu, 2016-06-02 at 13:38 +0800, Wanpeng Li wrote:
> From: Wanpeng Li <wanpeng.li@hotmail.com>
>=C2=A0
> I believe rq->prev_irq_time has similar issue. So this patch fix it
> by setting=C2=A0
> rq->prev_* to current irq time and steal clock timestamp after a cpu
> hotplug=C2=A0
> comes back.
>=20
> Fixes: 'commit e9532e69b8d1 ("sched/cputime: Fix steal time
> accounting vs. CPU hotplug")'
> Cc: Ingo Molnar <mingo@kernel.org>
> Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
> Cc: Rik van Riel <riel@redhat.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Frederic Weisbecker <fweisbec@gmail.com>
> Cc: Paolo Bonzini <pbonzini@redhat.com>
> Cc: Radim <rkrcmar@redhat.com>
> Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
>=20

Acked-by: Rik van Riel <riel@redhat.com>

--=20
All Rights Reversed.


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