Re: [PATCH v2] locking/pvqspinlock: restore/set vcpu_hashed state after failing adaptive locking spinning

From: Peter Zijlstra
Date: Thu Jul 14 2016 - 07:27:00 EST


On Thu, Jul 14, 2016 at 04:15:56PM +0800, Wanpeng Li wrote:
> In this case, lock holder inserts the pv_node of queue head into the
> hash table and set _Q_SLOW_VAL unnecessary. This patch avoids it by
> restoring/setting vcpu_halted state after failing adaptive locking
^^^^^^
> spinning.
>

> - WRITE_ONCE(pn->state, vcpu_halted);
> + WRITE_ONCE(pn->state, vcpu_hashed);
^^^^^^

The Changelog meant so say vcpu_hashed, surely?