459 	afd_t *afd = &curthread->t_activefd;  in clear_stale_fd()  local
463 	for (i = 0; i < afd->a_nfd; i++) {  in clear_stale_fd()
465 		ASSERT(afd->a_fd[i] == -1);  in clear_stale_fd()
466 		afd->a_fd[i] = -1;  in clear_stale_fd()
468 	afd->a_stale = 0;  in clear_stale_fd()
472 free_afd(afd_t *afd)		/* called below and from thread_free() */  in free_afd()  argument
477 	if (afd->a_nfd > sizeof (afd->a_buf) / sizeof (afd->a_buf[0])) {  in free_afd()
479 		kmem_free(afd->a_fd, afd->a_nfd * sizeof (afd->a_fd[0]));  in free_afd()
483 	afd->a_fd = &afd->a_buf[0];  in free_afd()
484 	afd->a_nfd = sizeof (afd->a_buf) / sizeof (afd->a_buf[0]);  in free_afd()
485 	afd->a_stale = 0;  in free_afd()
486 	for (i = 0; i < afd->a_nfd; i++)  in free_afd()
487 		afd->a_fd[i] = -1;  in free_afd()
493 	afd_t *afd = &curthread->t_activefd;  in set_active_fd()  local
500 	if (afd->a_nfd == 0) {	/* first time initialization */  in set_active_fd()
502 		mutex_enter(&afd->a_fdlock);  in set_active_fd()
503 		free_afd(afd);  in set_active_fd()
504 		mutex_exit(&afd->a_fdlock);  in set_active_fd()
508 	for (i = 0; i < afd->a_nfd; i++) {  in set_active_fd()
509 		if (afd->a_fd[i] == -1) {  in set_active_fd()
510 			afd->a_fd[i] = fd;  in set_active_fd()
519 	old_nfd = afd->a_nfd;  in set_active_fd()
520 	old_fd = afd->a_fd;  in set_active_fd()
522 	new_fd = kmem_alloc(new_nfd * sizeof (afd->a_fd[0]), KM_SLEEP);  in set_active_fd()
526 	mutex_enter(&afd->a_fdlock);  in set_active_fd()
527 	afd->a_fd = new_fd;  in set_active_fd()
528 	afd->a_nfd = new_nfd;  in set_active_fd()
530 		afd->a_fd[i] = old_fd[i];  in set_active_fd()
531 	afd->a_fd[i] = fd;  in set_active_fd()
532 	mutex_exit(&afd->a_fdlock);  in set_active_fd()
534 	if (old_nfd > sizeof (afd->a_buf) / sizeof (afd->a_buf[0])) {  in set_active_fd()
536 		kmem_free(old_fd, old_nfd * sizeof (afd->a_fd[0]));  in set_active_fd()
543 	afd_t *afd = &curthread->t_activefd;  in clear_active_fd()  local
546 	for (i = 0; i < afd->a_nfd; i++) {  in clear_active_fd()
547 		if (afd->a_fd[i] == fd) {  in clear_active_fd()
548 			afd->a_fd[i] = -1;  in clear_active_fd()
552 	ASSERT(i < afd->a_nfd);		/* not found is not ok */  in clear_active_fd()
561 	afd_t *afd = &t->t_activefd;  in is_active_fd()  local
565 	mutex_enter(&afd->a_fdlock);  in is_active_fd()
567 	for (i = 0; i < afd->a_nfd; i++) {  in is_active_fd()
568 		if (afd->a_fd[i] == fd) {  in is_active_fd()
569 			mutex_exit(&afd->a_fdlock);  in is_active_fd()
573 	mutex_exit(&afd->a_fdlock);  in is_active_fd()