237 	mutex_enter(&fn_lock->flk_lock);  in fifo_open()
272 	ASSERT(MUTEX_HELD(&VTOF(*vpp)->fn_lock->flk_lock));  in fifo_open()
283 		mutex_exit(&VTOF(*vpp)->fn_lock->flk_lock);  in fifo_open()
333 		mutex_exit(&fnp->fn_lock->flk_lock);  in fifo_open()
351 				mutex_exit(&fnp->fn_lock->flk_lock);  in fifo_open()
357 			    &fnp->fn_lock->flk_lock)) {  in fifo_open()
367 				mutex_exit(&fnp->fn_lock->flk_lock);  in fifo_open()
387 				mutex_exit(&fnp->fn_lock->flk_lock);  in fifo_open()
395 			    &fnp->fn_lock->flk_lock)) {  in fifo_open()
405 				mutex_exit(&fnp->fn_lock->flk_lock);  in fifo_open()
422 	mutex_exit(&fn_lock->flk_lock);  in fifo_open()
466 	mutex_enter(&fn_lock->flk_lock);  in fifo_close()
473 		cv_wait(&fn_lock->flk_wait_cv, &fn_lock->flk_lock);  in fifo_close()
543 		mutex_exit(&fn_lock->flk_lock);  in fifo_close()
586 			mutex_exit(&fn_lock->flk_lock);  in fifo_close()
588 			mutex_enter(&fn_lock->flk_lock);  in fifo_close()
612 			mutex_exit(&fn_lock->flk_lock);  in fifo_close()
618 			mutex_exit(&fn_lock->flk_lock);  in fifo_close()
629 			mutex_exit(&fn_lock->flk_lock);  in fifo_close()
631 			mutex_enter(&fn_lock->flk_lock);  in fifo_close()
636 		mutex_exit(&fn_lock->flk_lock);  in fifo_close()
673 	mutex_enter(&fn_lock->flk_lock);  in fifo_read()
690 			mutex_exit(&fn_lock->flk_lock);  in fifo_read()
698 			mutex_exit(&fn_lock->flk_lock);  in fifo_read()
719 		    &fn_lock->flk_lock)) {  in fifo_read()
773 				    &fn_lock->flk_lock))  in fifo_read()
805 	mutex_exit(&fn_lock->flk_lock);  in fifo_read()
811 	mutex_enter(&fn_lock->flk_lock);  in fifo_read()
825 	mutex_exit(&fn_lock->flk_lock);  in fifo_read()
880 	mutex_enter(&fn_lock->flk_lock);  in fifo_write()
919 					mutex_exit(&fn_lock->flk_lock);  in fifo_write()
936 			    &fn_lock->flk_lock)) {  in fifo_write()
985 			mutex_exit(&fn_lock->flk_lock);  in fifo_write()
996 				mutex_exit(&fn_lock->flk_lock);  in fifo_write()
1000 			mutex_enter(&fn_lock->flk_lock);  in fifo_write()
1035 			mutex_enter(&fn_lock->flk_lock);  in fifo_write()
1076 	ASSERT(MUTEX_HELD(&fn_lock->flk_lock));  in fifo_write()
1078 	mutex_exit(&fn_lock->flk_lock);  in fifo_write()
1084 	mutex_enter(&fn_lock->flk_lock);  in fifo_write()
1104 	mutex_exit(&fn_lock->flk_lock);  in fifo_write()
1110 	mutex_exit(&fn_lock->flk_lock);  in fifo_write()
1165 	mutex_enter(&fn_lock->flk_lock);  in fifo_fastioctl()
1205 		mutex_exit(&fn_lock->flk_lock);  in fifo_fastioctl()
1218 		mutex_exit(&fn_lock->flk_lock);  in fifo_fastioctl()
1390 	mutex_exit(&fn_lock->flk_lock);  in fifo_fastioctl()
1400 	mutex_exit(&fn_lock->flk_lock);  in fifo_fastioctl()
1434 			mutex_enter(&fn_lock->flk_lock);  in fifo_strioctl()
1439 			mutex_exit(&fn_lock->flk_lock);  in fifo_strioctl()
1470 		mutex_enter(&fn_lock->flk_lock);  in fifo_getattr()
1480 		mutex_enter(&fn_lock->flk_lock);  in fifo_getattr()
1516 	mutex_exit(&fn_lock->flk_lock);  in fifo_getattr()
1537 		mutex_enter(&fn_lock->flk_lock);  in fifo_setattr()
1543 		mutex_exit(&fn_lock->flk_lock);  in fifo_setattr()
1670 	mutex_enter(&fn_lock->flk_lock);  in fifo_inactive()
1678 		mutex_exit(&fn_lock->flk_lock);  in fifo_inactive()
1707 		mutex_exit(&fn_lock->flk_lock);  in fifo_inactive()
1792 	if (polllock(&stp->sd_pollist, &fn_lock->flk_lock) != 0) {  in fifo_poll()
1805 			mutex_exit(&fnp->fn_lock->flk_lock);  in fifo_poll()
1815 		mutex_exit(&fnp->fn_lock->flk_lock);  in fifo_poll()
1857 		mutex_exit(&fnp->fn_lock->flk_lock);  in fifo_poll()
1878 	mutex_exit(&fnp->fn_lock->flk_lock);  in fifo_poll()
2008 	ASSERT(MUTEX_HELD(&fnp->fn_lock->flk_lock));  in fifo_stayfast_enter()
2011 		cv_wait(&fnp->fn_wait_cv, &fnp->fn_lock->flk_lock);  in fifo_stayfast_enter()
2032 	ASSERT(MUTEX_HELD(&fnp->fn_lock->flk_lock));  in fifo_stayfast_exit()