linux-kernel - Re: [PATCH 2/5] x86_64: inline copy

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Message-ID: <20170502115944.GC6485@nazgul.tnic>
Date:   Tue, 2 May 2017 13:59:44 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Alexey Dobriyan <adobriyan@...il.com>
Cc:     the arch/x86 maintainers <x86@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/5] x86_64: inline copy_page() at call site

On Tue, May 02, 2017 at 02:49:04PM +0300, Alexey Dobriyan wrote:
> It says unambiguously which instruction does the actual copying.

And that doesn't tell me that it is an unrolled moving using registers.
And that is much more useful info when I look at stack traces than just
"mov".

-- 
Regards/Gruss,
    Boris.

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