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Date:   Wed, 20 Mar 2019 11:24:20 +0100 (CET)
From:   Thomas Gleixner <tglx@linutronix.de>
To:     Waiman Long <longman@redhat.com>
cc:     Zhenzhong Duan <zhenzhong.duan@oracle.com>,
        Peter Zijlstra <peterz@infradead.org>,
        linux-kernel@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
        Borislav Petkov <bp@alien8.de>,
        "H. Peter Anvin" <hpa@zytor.com>,
        Srinivas Eeda <srinivas.eeda@oracle.com>, x86@kernel.org
Subject: Re: [PATCH 2/2] Revert "x86/hpet: Reduce HPET counter read
 contention"
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References: <1552552932-21821-1-git-send-email-zhenzhong.duan@oracle.com> <1552552932-21821-2-git-send-email-zhenzhong.duan@oracle.com> <20190315092529.GU5996@hirez.programming.kicks-ass.net> <09d5ca8b-9cee-c013-01b4-bd2e78672b57@redhat.com>
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On Mon, 18 Mar 2019, Waiman Long wrote:
> On 03/18/2019 04:44 AM, Zhenzhong Duan wrote:
> > https://lkml.org/lkml/2019/3/15/101
> >
> I think what Thomas was asking is to provide a REALISTIC use case where
> TSC is wrecked and HPET is somehow not used and we have to fall back to
> use PM timer. If such use case exists, I am sure Thomas will be happy to
> take it.

Exactly.

Thanks,

	tglx