Re: [tip:x86/asm] x86: Pack function addresses tightly as well
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- Subject: Re: [tip:x86/asm] x86: Pack function addresses tightly as well
- From: Denys Vlasenko <vda.linux@xxxxxxxxxxxxxx>
- Date: Mon, 18 May 2015 11:28:25 +0200
- Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxxxxxx>, Davidlohr Bueso <dave@xxxxxxxxxxxx>, Peter Anvin <hpa@xxxxxxxxx>, Denys Vlasenko <dvlasenk@xxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, "Chandramouleeswaran, Aswin" <aswin@xxxxxx>, Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>, Brian Gerst <brgerst@xxxxxxxxx>, Paul McKenney <paulmck@xxxxxxxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Jason Low <jason.low2@xxxxxx>, "linux-tip-commits@xxxxxxxxxxxxxxx" <linux-tip-commits@xxxxxxxxxxxxxxx>
- In-reply-to: <20150517055551.GB17002@gmail.com>
On Sun, May 17, 2015 at 7:58 AM, Ingo Molnar <mingo@xxxxxxxxxx> wrote:
> With function packing, they compress into:
>
> ffffffff817f2458 T _raw_spin_unlock_irqrestore
> ffffffff817f2463 T _raw_read_unlock_irqrestore
So _raw_spin_unlock_irqrestore is only 11 bytes long?
Sounds like it should have been inlined.
Is this with CONFIG_OPTIMIZE_INLINES=y ?
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