On Thu, Apr 05, 2018 at 05:59:07PM +0100, Will Deacon wrote: > @@ -340,12 +341,17 @@ void queued_spin_lock_slowpath(struct qspinlock *lock, > u32 val) > goto release; > > /* > + * Ensure that the initialisation of @node is complete before we > + * publish the updated tail and potentially link @node into the > + * waitqueue. > + */ > + smp_wmb();
Maybe an explicit note to where the matching barrier lives..
