Re: [PATCHv3 1/1] locking/qspinlock/x86: Avoid test-and-set when PV_DEDICATED is set

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Subject: Re: [PATCHv3 1/1] locking/qspinlock/x86: Avoid test-and-set when PV_DEDICATED is set
From: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Date: Tue, 7 Nov 2017 13:43:15 +0100
Cc: rkrcmar@xxxxxxxxxx, Matt Wilson <msw@xxxxxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, x86@xxxxxxxxxx, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Waiman Long <longman@xxxxxxxxxx>, kvm@xxxxxxxxxxxxxxx, linux-doc@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, "Jan H . Schoenherr" <jschoenh@xxxxxxxxx>, Anthony Liguori <aliguori@xxxxxxxxxx>
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On 07/11/2017 13:39, Eduardo Valentin wrote:
>> is this still needed after Waiman's patch to adaptively switch between
>> tas and pvqspinlock?
> Can you please point me to it ? Is it already in tip/master?
> 

No, he just posted it:

https://marc.info/?l=linux-kernel&m=150972337909996&w=2

Paolo

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