linux-kernel - Re: [PATCH -tip] Convert CONFIG_SMP=y powerpc defconfigs to TREE

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Date:	Sun, 5 Apr 2009 12:17:56 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	Josh Boyer <jwboyer@...il.com>, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org, dipankar@...ibm.com, niv@...ibm.com,
	manfred@...orfullife.com, peterz@...radead.org,
	lethal@...ux-sh.org, kernel@...tstofly.org, andi@...stfloor.org,
	kyle@...artin.ca, deller@....de, davem@...emloft.net,
	ralf@...ux-mips.org, jes@....com, benh@...nel.crashing.org,
	paulus@...ba.org, anton@...ba.org
Subject: Re: [PATCH -tip] Convert CONFIG_SMP=y powerpc defconfigs to
	TREE_RCU.


* Paul E. McKenney <paulmck@...ux.vnet.ibm.com> wrote:

> On Sat, Apr 04, 2009 at 09:21:58AM -0400, Josh Boyer wrote:
> > On Fri, Apr 3, 2009 at 8:27 PM, Paul E. McKenney
> > <paulmck@...ux.vnet.ibm.com> wrote:
> > > From: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
> > 
> > Why would one want to do this?  The commit log doesn't explain the
> > switch and why it's great.  Mostly because the commit log doesn't
> > exist.  (I'll stop channeling Andrew now)
> 
> Indeed, I am sure that I will get the hang the relevant git 
> commands at some point, but clearly am not yet there.
> 
> The thing that is great about this patch is that it is a step on 
> the way to retiring Classic RCU entirely.

I'd suggest you dont do these dozens of defconfig updates at all - 
arch maintainers can do this themselves, once the core kernel 
default has been flipped.

	Ingo
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