netdev - RE: [PATCH v6 13/20] x86/split_lock: Enable split lock detection by default

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Message-ID: <58bb4085161a4112995e23b46353b777@AcuMS.aculab.com>
Date:   Wed, 10 Apr 2019 08:50:57 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'Fenghua Yu' <fenghua.yu@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>
CC:     Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H Peter Anvin" <hpa@...or.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Ashok Raj <ashok.raj@...el.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Kalle Valo <kvalo@...eaurora.org>,
        Xiaoyao Li <xiaoyao.li@...el.com>,
        Michael Chan <michael.chan@...adcom.com>,
        "Ravi V Shankar" <ravi.v.shankar@...el.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        x86 <x86@...nel.org>,
        "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>
Subject: RE: [PATCH v6 13/20] x86/split_lock: Enable split lock detection by
 default

FWIW it took me a while to work out what a 'split lock' was.

I suspect because I was thinking of kernel locks, not the
instruction lock prefix.
It also isn't really obvious that 'split' refers to crossing
cache lines.

Referring to it as a 'misaligned lock' might be more
easily understood.

	David

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