> static inline int __ticket_spin_is_locked(arch_spinlock_t *lock)
> {
> - int tmp = ACCESS_ONCE(lock->slock);
> + struct __raw_tickets tmp = ACCESS_ONCE(lock->tickets);
>
> - return !!(((tmp >> TICKET_SHIFT) ^ tmp) & ((1 << TICKET_SHIFT) - 1));
> + return !!(tmp.tail ^ tmp.head);
Does it make sense to mask it here it here with TICKET_MASK as it was done
before?
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