From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Alessio Igor Bogani <abogani@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Avi Kivity <avi@redhat.com>, Chris Metcalf <cmetcalf@tilera.com>,
Christoph Lameter <cl@linux.com>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Geoff Levand <geoff@infradead.org>,
Gilad Ben Yossef <gilad@benyossef.com>,
Hakan Akkan <hakanakkan@gmail.com>, Kevin Hilman <khilman@ti.com>,
Max Krasnyansky <maxk@qualcomm.com>,
Peter Zijlstra <peterz@infradead.org>,
Stephen Hemminger <shemminger@vyatta.com>,
Steven Rostedt <rostedt@goodmis.org>,
Sven-Thorsten Dietrich <thebigcorporation@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH 0/2] rcu: Extended quiescent state for adaptive nohz
Date: Mon, 4 Jun 2012 14:07:09 -0700 [thread overview]
Message-ID: <20120604210709.GO2490@linux.vnet.ibm.com> (raw)
In-Reply-To: <CAFTL4hzqa1z4icSBwEqZXLjCrVsG+axm2TaGSaaMXkjazT0Qfw@mail.gmail.com>
On Mon, Jun 04, 2012 at 09:06:22PM +0200, Frederic Weisbecker wrote:
> 2012/6/4 Paul E. McKenney <paulmck@linux.vnet.ibm.com>:
> > On Mon, Jun 04, 2012 at 02:08:26PM +0200, fweisbec@gmail.com wrote:
> >> From: Frederic Weisbecker <fweisbec@gmail.com>
> >>
> >> Paul, Ingo,
> >>
> >> This is a rebase of the nohz cpusets RCU APIs on top of Paul's latest
> >> -rcu (rcu/core) branch.
> >>
> >> I have only built tested it yet, I need to do a full rebase of my
> >> tree to test it in practice. But I wanted to show you how it looks
> >> like first.
> >>
> >> I also wonder if we can set that to a tree somewhere. Ingo suggested
> >> to set up a tree on -tip to apply the uncontroversial part of nohz
> >> cpusets patches and iterate from there. I think it would accelerate
> >> everything if we start doing that.
> >
> > It would probably be best to put these two in the -rcu set in order to
> > avoid conflicts with possible further RCU_FAST_NO_HZ work. I could
> > push this to -tip early, if that would help.
>
> But then these APIs are going to be upstream on 3.6
> Is that ok for you even if they don't have any upstream user?
> We can ifdef it.
I figured on maintaining a separate rcu/idle topic branch that I would
merge locally for building and testing, but which I would not push
to rcu/next. If Ingo agrees, I can push separately to -tip so that it
does not go upstream until you are ready, at which point I would merge
it into rcu/next.
Seem reasonable, or would something else work better?
Thanx, Paul
next prev parent reply other threads:[~2012-06-04 21:08 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-04 12:08 [PATCH 0/2] rcu: Extended quiescent state for adaptive nohz fweisbec
2012-06-04 12:08 ` [PATCH 1/2] rcu: New rcu_user_enter() and rcu_user_exit() APIs fweisbec
2012-06-04 12:08 ` [PATCH 2/2] rcu: New rcu_user_enter_irq() and rcu_user_exit_irq() APIs fweisbec
2012-06-04 18:13 ` [PATCH 0/2] rcu: Extended quiescent state for adaptive nohz Paul E. McKenney
2012-06-04 19:06 ` Frederic Weisbecker
2012-06-04 21:07 ` Paul E. McKenney [this message]
2012-06-05 10:31 ` Frederic Weisbecker
2012-06-05 23:46 ` Paul E. McKenney
2012-06-07 14:21 ` Frederic Weisbecker
2012-06-07 22:45 ` Paul E. McKenney
2012-06-09 22:58 ` Frederic Weisbecker
2012-06-10 17:54 ` Paul E. McKenney
2012-06-09 22:55 ` [PATCH] rcu: Allow calls to rcu_exit_user_irq from nesting irqs Frederic Weisbecker
2012-06-10 18:06 ` Paul E. McKenney
2012-06-10 20:29 ` Frederic Weisbecker
2012-06-10 21:47 ` [PATCH v2] " Frederic Weisbecker
2012-06-11 21:55 ` Paul E. McKenney
2012-06-11 22:06 ` Frederic Weisbecker
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