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

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Message-ID: <20190130140707.GC2296@hirez.programming.kicks-ass.net>
Date:   Wed, 30 Jan 2019 15:07:07 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Waiman Long <longman@...hat.com>
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

> 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.