linux-kernel - Re: [PATCH 0/24] make atomic_read() behave consistently across all architectures

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Message-ID: <alpine.LFD.0.999.0708171547050.3666@enigma.security.iitk.ac.in>
Date:	Fri, 17 Aug 2007 15:53:02 +0530 (IST)
From:	Satyam Sharma <satyam@...radead.org>
To:	Paul Mackerras <paulus@...ba.org>
cc:	Nick Piggin <nickpiggin@...oo.com.au>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Segher Boessenkool <segher@...nel.crashing.org>,
	heiko.carstens@...ibm.com, horms@...ge.net.au,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	rpjday@...dspring.com, ak@...e.de, netdev@...r.kernel.org,
	cfriesen@...tel.com, Andrew Morton <akpm@...ux-foundation.org>,
	jesper.juhl@...il.com, linux-arch@...r.kernel.org, zlynx@....org,
	clameter@....com, schwidefsky@...ibm.com,
	Chris Snook <csnook@...hat.com>,
	Herbert Xu <herbert.xu@...hat.com>, davem@...emloft.net,
	wensong@...ux-vs.org, wjiang@...ilience.com
Subject: Re: [PATCH 0/24] make atomic_read() behave consistently across all
 architectures



On Fri, 17 Aug 2007, Paul Mackerras wrote:

> Satyam Sharma writes:
> 
> > I wonder if this'll generate smaller and better code than _both_ the
> > other atomic_read_volatile() variants. Would need to build allyesconfig
> > on lots of diff arch's etc to test the theory though.
> 
> I'm sure it would be a tiny effect.
> 
> This whole thread is arguing about effects that are quite
> insignificant.

Hmm, the fact that this thread became what it did, probably means that
most developers on this list do not mind thinking/arguing about effects
or optimizations that are otherwise "tiny". But yeah, they are tiny
nonetheless.
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