linux-kernel - Re: [PATCH for 4.16 v7 02/11] powerpc: membarrier: Skip memory barrier in switch

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Message-ID: <20180205202242.6ilyjh35byycf3ez@gmail.com>
Date:   Mon, 5 Feb 2018 21:22:42 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Cc:     Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org, linux-api@...r.kernel.org,
        Andy Lutomirski <luto@...nel.org>,
        "Paul E . McKenney" <paulmck@...ux.vnet.ibm.com>,
        Boqun Feng <boqun.feng@...il.com>,
        Andrew Hunter <ahh@...gle.com>,
        Maged Michael <maged.michael@...il.com>,
        Avi Kivity <avi@...lladb.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Dave Watson <davejwatson@...com>,
        "H . Peter Anvin" <hpa@...or.com>,
        Andrea Parri <parri.andrea@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Greg Hackmann <ghackmann@...gle.com>,
        Will Deacon <will.deacon@....com>,
        David Sehr <sehr@...gle.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>, x86@...nel.org,
        Alan Stern <stern@...land.harvard.edu>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Nicholas Piggin <npiggin@...il.com>,
        linuxppc-dev@...ts.ozlabs.org, linux-arch@...r.kernel.org
Subject: Re: [PATCH for 4.16 v7 02/11] powerpc: membarrier: Skip memory
 barrier in switch_mm()


* Mathieu Desnoyers <mathieu.desnoyers@...icios.com> wrote:

>  
> +config ARCH_HAS_MEMBARRIER_HOOKS
> +	bool

Yeah, so I have renamed this to ARCH_HAS_MEMBARRIER_CALLBACKS, and propagated it 
through the rest of the patches. "Callback" is the canonical name, and I also 
cringe every time I see 'hook'.

Please let me know if there are any big objections against this minor cleanup.

Thanks,

	Ingo