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Message-ID: <1471400125.32433.61.camel@redhat.com>
Subject: Re: [PATCH v3] sched/cputime: Resync steal time when guest & host
 lose sync
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 <peterz@infradead.org>,
        Paolo Bonzini <pbonzini@redhat.com>, Radim Krcmar <rkrcmar@redhat.com>,
        Mike Galbraith <efault@gmx.de>,
        Frederic Weisbecker <fweisbec@gmail.com>,
        Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 16 Aug 2016 22:15:25 -0400
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On Wed, 2016-08-17 at 10:05 +0800, Wanpeng Li wrote:

> This patch fix the regression by limiting the account_other_time()
> from=C2=A0
> get_vtime_delta() to avoid underflow, and let other three call sites
> (account_other_time() and steal_account_process_time()) account
> however=C2=A0
> much steal time the host told us elapsed.=C2=A0
>=20
> Suggested-by: Rik van Riel <riel@redhat.com>=C2=A0
> Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
> Cc: Ingo Molnar <mingo@kernel.org>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Rik van Riel <riel@redhat.com>
> Cc: Paolo Bonzini <pbonzini@redhat.com>
> Cc: Radim Krcmar <rkrcmar@redhat.com>
> Cc: Mike Galbraith <efault@gmx.de>
> Cc: Frederic Weisbecker <fweisbec@gmail.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
>=20

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

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All Rights Reversed.
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