Re: [PATCH -v3 8/8] locking, tile: Provide TILE specific smp_acquire__after_ctrl_dep

From: Chris Metcalf
Date: Tue May 31 2016 - 11:32:35 EST


On 5/31/2016 5:41 AM, Peter Zijlstra wrote:
Since TILE doesn't do read speculation, its control dependencies also
guarantee LOAD->LOAD order and we don't need the additional RMB
otherwise required to provide ACQUIRE semantics.

Cc: Chris Metcalf<cmetcalf@xxxxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel)<peterz@xxxxxxxxxxxxx>
---
arch/tile/include/asm/barrier.h | 7 +++++++
1 file changed, 7 insertions(+)

Looks good.

Acked-by: Chris Metcalf <cmetcalf@xxxxxxxxxxxx>

--
Chris Metcalf, Mellanox Technologies
http://www.mellanox.com