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Date: Tue, 10 Oct 2017 07:08:13 -0700
From: Tejun Heo <tj@...nel.org>
To: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc: linux-kernel@...r.kernel.org, mingo@...nel.org,
torvalds@...ux-foundation.org, mark.rutland@....com,
dhowells@...hat.com, linux-arch@...r.kernel.org,
peterz@...radead.org, will.deacon@....com,
Christoph Lameter <cl@...ux.com>
Subject: Re: [PATCH RFC tip/core/rcu 05/15] percpu: READ_ONCE() now implies
smp_read_barrier_depends()
On Mon, Oct 09, 2017 at 05:22:39PM -0700, Paul E. McKenney wrote:
> Because READ_ONCE() now implies smp_read_barrier_depends(), this commit
> removes the now-redundant smp_read_barrier_depends() following the
> READ_ONCE() in __ref_is_percpu().
>
> Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
> Cc: Tejun Heo <tj@...nel.org>
> Cc: Christoph Lameter <cl@...ux.com>
Acked-by: Tejun Heo <tj@...nel.org>
Please feel free to route with other patches. If this should be
routed through the percpu tree, please let me know.
Thanks.
--
tejun
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