linux-kernel - Re: [PATCH v3 0/4] locking/qspinlock: Handle

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Date:   Wed, 30 Jan 2019 11:25:25 -0500
From:   Waiman Long <longman@...hat.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Ingo Molnar <mingo@...hat.com>, Will Deacon <will.deacon@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
        linux-arch@...r.kernel.org, x86@...nel.org,
        Zhenzhong Duan <zhenzhong.duan@...cle.com>,
        James Morse <james.morse@....com>,
        SRINIVAS <srinivas.eeda@...cle.com>
Subject: Re: [PATCH v3 0/4] locking/qspinlock: Handle > 4 nesting levels

On 01/30/2019 09:07 AM, Peter Zijlstra wrote:
>> Waiman Long (4):
>>   locking/qspinlock: Handle > 4 slowpath nesting levels
>>   locking/qspinlock_stat: Track the no MCS node available case
> I've taken these two,
>
>>   locking/qspinlock_stat: Introduce a generic lockevent counting APIs
>>   locking/lock_events: Make lock_events available for all archs & other
>>     locks
> while no real objection to these; I feel we should wait until there are
> in fact more users of this.

I am actually working on a rwsem patch which I plan to use the event
counting for my testing purpose. I will include this two patches in my
patch series.

Thanks,
Longman