linux-kernel - Re: [PATCH RFC] x86: enforce inlining for atomics

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Message-ID: <131222735.1080.1436815216582.JavaMail.open-xchange@ox1app>
Date:	Mon, 13 Jul 2015 21:20:16 +0200 (CEST)
From:	Hagen Paul Pfeifer <hagen@...u.net>
To:	Ingo Molnar <mingo@...nel.org>,
	Denys Vlasenko <vda.linux@...glemail.com>
Cc:	Borislav Petkov <bp@...en8.de>, "H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Markus Trippelsdorf <markus@...ppelsdorf.de>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH RFC] x86: enforce inlining for atomics

> On July 13, 2015 at 8:27 PM Denys Vlasenko <vda.linux@...glemail.com>
> wrote:

> > So I think the original patch makes sense (and I already applied it),
> > we want known-simple and performance critical methods (such as atomic
> > ops) always inlined.
> 
> I will send more such force-inlining patches your way then.

Now? We discuss this a month back or so? :-)

Anyway, if so I prefer to group the patchset in at least two patches to
simplify review:

- performance criticial group
- inline assembler group

The former group contains all inline critical functions and the later to
identify functions where gcc has problems because their inline heuristic
for asm code is a toy.

Hagen
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