linux-kernel - Re: [RFC] dynticks: dynticks_idle is only modified locally use this

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Message-ID: <20140910221828.GO4704@linux.vnet.ibm.com>
Date:	Wed, 10 Sep 2014 15:18:29 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Christoph Lameter <cl@...ux.com>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC] dynticks: dynticks_idle is only modified locally use
 this_cpu ops

On Mon, Sep 08, 2014 at 01:20:30PM -0500, Christoph Lameter wrote:
> 
> On Thu, 4 Sep 2014, Paul E. McKenney wrote:
> 
> > The lglocks use should be of particular interest to you.  See above to
> > find the others.
> 
> Well the other seem to be in drivers.

OK...

> > Understood, but no hasty changes to that part of RCU.
> 
> At our age I think we have learned to be very deliberate and slow.

And rcutorture needs some upgrades for this case.

> > rcu: Use DEFINE_PER_CPU_SHARED_ALIGNED for rcu_data
> 
> Reviewed-by: Christoph Lameter <cl@...ux.com>

Thank you, recorded.

							Thanx, Paul

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