51 	lock->rw = 0;  in ttm_lock_init()
71 	if (--lock->rw == 0)  in ttm_read_unlock()
84 	if (lock->rw >= 0 && lock->flags == 0) {  in __ttm_read_lock()
85 		++lock->rw;  in __ttm_read_lock()
126 	if (lock->rw >= 0 && lock->flags == 0) {  in __ttm_read_trylock()
127 		++lock->rw;  in __ttm_read_trylock()
168 	lock->rw = 0;  in ttm_write_unlock()
181 	if (lock->rw == 0 && ((lock->flags & ~TTM_WRITE_LOCK_PENDING) == 0)) {  in __ttm_write_lock()
182 		lock->rw = -1;  in __ttm_write_lock()
225 	lock->rw = 1;  in ttm_write_lock_downgrade()
259 	if (lock->rw == 0) {  in __ttm_vt_lock()
330 	if (lock->rw == 0) {  in __ttm_suspend_lock()