linux-kernel - Re: [PATCH v2 3/6] arm64/vdso: Add time napespace page

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Date:   Wed, 15 Apr 2020 13:27:31 +0100
From:   Mark Rutland <mark.rutland@....com>
To:     Vincenzo Frascino <vincenzo.frascino@....com>
Cc:     Andrei Vagin <avagin@...il.com>,
        linux-arm-kernel@...ts.infradead.org,
        LKML <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Dmitry Safonov <dima@...sta.com>
Subject: Re: [PATCH v2 3/6] arm64/vdso: Add time napespace page

On Wed, Apr 15, 2020 at 11:16:00AM +0100, Vincenzo Frascino wrote:
> Hi Mark,
> 
> On 4/15/20 11:05 AM, Mark Rutland wrote:
> > It's a shame we're not using OPTIMIZER_HIDE_VAR() for that, as it can
> > generate slightly better code and is easier to read than bare asm.
> 
> We are not because I was not aware when I wrote this code that such a macro
> existed :)
> 
> But you are right it clearly makes the code more readable. To make up for it, I
> am happy to make the effort to introduce it for both the cases and replace the
> assembler once this patch series gets merged.

Sounds good to me!

Mark.