linux-kernel - Re: [GIT PULL rcu/next] Additional RCU commit for 3.15

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Message-ID: <20140325054845.GA27206@gmail.com>
Date:	Tue, 25 Mar 2014 06:48:45 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	peterz@...radead.org, linux-kernel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [GIT PULL rcu/next] Additional RCU commit for 3.15


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

> Hello, Ingo,
> 
> And, if you are willing to take it, one late-breaking commit.  This one
> was requested for 3.15 by Peter Zijlstra. [...]

No objections at all, looks like a useful facility!

> [...] It is low risk because it adds a new in-kernel API with 
> minimal changes to the existing code.  Those minimal changes are the 
> addition of memory barriers and ACCESS_ONCE() macro calls, neither 
> of which should be able to break things.  This commit has passed 
> significant rcutorture testing, with these additional additions to 
> rcutorture slated for 3.16.  This commit has also been exposed to 
> -next testing.
> 
> This change is available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/next
> 
> for you to fetch changes up to 765a3f4fed708ae429ee095914a7897acb3a65bd:
> 
>   rcu: Provide grace-period piggybacking API (2014-03-20 17:12:25 -0700)
> 
> ----------------------------------------------------------------
> Paul E. McKenney (1):
>       rcu: Provide grace-period piggybacking API
> 
>  include/linux/rcutiny.h | 10 ++++++++
>  include/linux/rcutree.h |  2 ++
>  kernel/rcu/tree.c       | 62 +++++++++++++++++++++++++++++++++++++++++++++----
>  3 files changed, 70 insertions(+), 4 deletions(-)

Pulled, thanks a lot Paul!

	Ingo
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