linux-kernel - Re: [GIT PULL] RCU changes for v3.4

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Message-ID: <20120320061339.GA27423@gmail.com>
Date:	Tue, 20 Mar 2012 07:13:39 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [GIT PULL] RCU changes for v3.4


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

> On Mon, Mar 19, 2012 at 05:18:21PM -0700, Linus Torvalds wrote:
> > On Mon, Mar 19, 2012 at 8:23 AM, Ingo Molnar <mingo@...nel.org> wrote:
> > >
> > > Please pull the latest core-rcu-for-linus git tree from:
> > >
> > >   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core-rcu-for-linus
> > 
> > So Ingo, Paul - I'd really have liked to have some high-level
> > user-readable explanation of the changes that I could have put in the
> > merge message.

Yeah, good point - I distilled that list in the merge commit 
itself (see commit bdd4431c8d071491a68a65d9457996f222b5ecd3) - 
should have exported that to the pull request itself:

>From bdd4431c8d071491a68a65d9457996f222b5ecd3 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@...e.hu>
Date: Tue, 28 Feb 2012 10:16:01 +0100
Subject: [PATCH] Merge branch 'rcu/next' of
 git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu

The major features of this series are:

 - making RCU more aggressive about entering dyntick-idle mode in order to
   improve energy efficiency

 - converting a few more call_rcu()s to kfree_rcu()s

 - applying a number of rcutree fixes and cleanups to rcutiny

 - removing CONFIG_SMP #ifdefs from treercu

 - allowing RCU CPU stall times to be set via sysfs

 - adding CPU-stall capability to rcutorture

 - adding more RCU-abuse diagnostics

 - updating documentation

 - fixing yet more issues located by the still-ongoing top-to-bottom
   inspection of RCU, this time with a special focus on the
   CPU-hotplug code path.

Thanks,

	Ingo
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