Date: Fri, 9 Aug 2013 17:37:49 +0200
From: Frederic Weisbecker <fweisbec@gmail.com>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org, mingo@elte.hu, laijs@cn.fujitsu.com,
        dipankar@in.ibm.com, akpm@linux-foundation.org,
        mathieu.desnoyers@polymtl.ca, josh@joshtriplett.org, niv@us.ibm.com,
        tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org,
        dhowells@redhat.com, edumazet@google.com, darren@dvhart.com,
        sbw@mit.edu
Subject: Re: [PATCH RFC nohz_full 3/7] nohz_full: Add per-CPU idle-state
 tracking
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On Fri, Jul 26, 2013 at 04:19:20PM -0700, Paul E. McKenney wrote:
> From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
> 
> This commit adds the code that updates the rcu_dyntick structure's
> new fields to track the per-CPU idle state based on interrupts and
> transitions into and out of the idle loop (NMIs are ignored because NMI
> handlers cannot cleanly read out the time anyway).  This code is similar
> to the code that maintains RCU's idea of per-CPU idleness, but differs
> in that RCU treats CPUs running in user mode as idle, where this new
> code does not.
> 
> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
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