linux-kernel - Re: [PATCH 2/2] x86: vdso: use __pvclock_read

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Message-ID: <CALCETrVu-P_H7vAuzvtATPymnOyrWPy+T4FCwdvLP022qpEHag@mail.gmail.com>
Date:	Wed, 6 Jul 2016 06:36:52 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	Paolo Bonzini <pbonzini@...hat.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	kvm list <kvm@...r.kernel.org>, Ingo Molnar <mingo@...hat.com>,
	X86 ML <x86@...nel.org>, Minfei Huang <mnghuan@...il.com>
Subject: Re: [PATCH 2/2] x86: vdso: use __pvclock_read_cycles

On Mon, Jun 27, 2016 at 7:19 AM, Paolo Bonzini <pbonzini@...hat.com> wrote:
> The new simplified __pvclock_read_cycles does the same computation
> as vread_pvclock, except that (because it takes the pvclock_vcpu_time_info
> pointer) it has to be moved inside the loop.  Since the loop is expected to
> never roll, this makes no difference.

Acked-by: Andy Lutomirski <luto@...nel.org>