linux-kernel - Re: [PATCH v7 3/5] locking/qspinlock: Introduce CNA into the slow path of qspinlock

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Message-ID: <20200122095127.GC14946@hirez.programming.kicks-ass.net>
Date:   Wed, 22 Jan 2020 10:51:27 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Alex Kogan <alex.kogan@...cle.com>
Cc:     linux@...linux.org.uk, mingo@...hat.com, will.deacon@....com,
        arnd@...db.de, longman@...hat.com, linux-arch@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        tglx@...utronix.de, bp@...en8.de, hpa@...or.com, x86@...nel.org,
        guohanjun@...wei.com, jglauber@...vell.com,
        steven.sistare@...cle.com, daniel.m.jordan@...cle.com,
        dave.dice@...cle.com, rahul.x.yadav@...cle.com
Subject: Re: [PATCH v7 3/5] locking/qspinlock: Introduce CNA into the slow
 path of qspinlock

On Tue, Jan 21, 2020 at 09:29:19PM +0100, Peter Zijlstra wrote:
> 
> various notes and changes in the below.

Also, sorry for replying to v7 and v8, I forgot to refresh email on the
laptop and had spotty cell service last night and only found v7 in that
mailbox.

Afaict none of the things I commented on were fundamentally changed
though.