On 13.03.2020 09:05, Juergen Gross wrote:
> @@ -199,10 +199,10 @@ unsigned long _spin_lock_irqsave(spinlock_t *lock)
> void _spin_unlock(spinlock_t *lock)
> {
> arch_lock_release_barrier();
> - preempt_enable();
> LOCK_PROFILE_REL;
> rel_lock(&lock->debug);
> add_sized(&lock->tickets.head, 1);
> + preempt_enable();
> arch_lock_signal();
> }
arch_lock_signal() is a barrier on Arm, hence just like for patch 1
I wonder whether the insertion wouldn't better come after it.
Jan
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