104 		read_count += *per_cpu_ptr(lock->readers, cpu);  in pcpu_read_count()
154 	if (type == SIX_LOCK_read && lock->readers) {  in __do_six_trylock()
156 		this_cpu_inc(*lock->readers); /* signal that we own lock */  in __do_six_trylock()
163 		this_cpu_sub(*lock->readers, !ret);  in __do_six_trylock()
171 	} else if (type == SIX_LOCK_write && lock->readers) {  in __do_six_trylock()
576 	    lock->readers) {  in do_six_unlock_type()
578 		this_cpu_dec(*lock->readers);  in do_six_unlock_type()
664 		if (!lock->readers) {  in six_lock_tryupgrade()
672 	if (lock->readers)  in six_lock_tryupgrade()
673 		this_cpu_dec(*lock->readers);  in six_lock_tryupgrade()
729 		if (lock->readers) {  in six_lock_increment()
730 			this_cpu_inc(*lock->readers);  in six_lock_increment()
785 	ret.n[SIX_LOCK_read]	= !lock->readers  in six_lock_counts()
798  * @lock:	lock to add/subtract readers for
818 	if (lock->readers) {  in six_lock_readers_add()
819 		this_cpu_add(*lock->readers, nr);  in six_lock_readers_add()
837 	WARN_ON(lock->readers && pcpu_read_count(lock));  in six_lock_exit()
840 	free_percpu(lock->readers);  in six_lock_exit()
841 	lock->readers = NULL;  in six_lock_exit()
866 		 * failure if they wish by checking lock->readers, but generally  in __six_lock_init()
869 		lock->readers = alloc_percpu(unsigned);  in __six_lock_init()