linux-kernel - Re: [patch] measurements, numbers about CONFIG_OPTIMIZE

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Date:	Sun, 11 Jan 2009 17:45:34 -0500
From:	Valdis.Kletnieks@...edu
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Ingo Molnar <mingo@...e.hu>, jim owens <jowens@...com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Chris Mason <chris.mason@...cle.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	paulmck@...ux.vnet.ibm.com, Gregory Haskins <ghaskins@...ell.com>,
	Matthew Wilcox <matthew@....cx>,
	Andi Kleen <andi@...stfloor.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	linux-btrfs <linux-btrfs@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Nick Piggin <npiggin@...e.de>,
	Peter Morreale <pmorreale@...ell.com>,
	Sven Dietrich <SDietrich@...ell.com>
Subject: Re: [patch] measurements, numbers about CONFIG_OPTIMIZE_INLINING=y impact

On Fri, 09 Jan 2009 08:34:57 PST, "H. Peter Anvin" said:

> A lot of noise is being made about the naming of the levels (and I
> personally believe we should have a different annotation for "inline
> unconditionally for correctness" and "inline unconditionally for
> performance", as a documentation issue), but those are the four we get.

I know we use __builtin_return_address() in several places, and several
other places we introspect the stack and need to find the right frame entry.
Are there any other places that need to be inlined for correctness?

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