458 	afd_t *afd = &curthread->t_activefd;  in clear_stale_fd()  local
462 	for (i = 0; i < afd->a_nfd; i++) {  in clear_stale_fd()
464 		ASSERT(afd->a_fd[i] == -1);  in clear_stale_fd()
465 		afd->a_fd[i] = -1;  in clear_stale_fd()
467 	afd->a_stale = 0;  in clear_stale_fd()
471 free_afd(afd_t *afd)		/* called below and from thread_free() */  in free_afd()  argument
476 	if (afd->a_nfd > sizeof (afd->a_buf) / sizeof (afd->a_buf[0])) {  in free_afd()
478 		kmem_free(afd->a_fd, afd->a_nfd * sizeof (afd->a_fd[0]));  in free_afd()
482 	afd->a_fd = &afd->a_buf[0];  in free_afd()
483 	afd->a_nfd = sizeof (afd->a_buf) / sizeof (afd->a_buf[0]);  in free_afd()
484 	afd->a_stale = 0;  in free_afd()
485 	for (i = 0; i < afd->a_nfd; i++)  in free_afd()
486 		afd->a_fd[i] = -1;  in free_afd()
492 	afd_t *afd = &curthread->t_activefd;  in set_active_fd()  local
499 	if (afd->a_nfd == 0) {	/* first time initialization */  in set_active_fd()
501 		mutex_enter(&afd->a_fdlock);  in set_active_fd()
502 		free_afd(afd);  in set_active_fd()
503 		mutex_exit(&afd->a_fdlock);  in set_active_fd()
507 	for (i = 0; i < afd->a_nfd; i++) {  in set_active_fd()
508 		if (afd->a_fd[i] == -1) {  in set_active_fd()
509 			afd->a_fd[i] = fd;  in set_active_fd()
518 	old_nfd = afd->a_nfd;  in set_active_fd()
519 	old_fd = afd->a_fd;  in set_active_fd()
521 	new_fd = kmem_alloc(new_nfd * sizeof (afd->a_fd[0]), KM_SLEEP);  in set_active_fd()
525 	mutex_enter(&afd->a_fdlock);  in set_active_fd()
526 	afd->a_fd = new_fd;  in set_active_fd()
527 	afd->a_nfd = new_nfd;  in set_active_fd()
529 		afd->a_fd[i] = old_fd[i];  in set_active_fd()
530 	afd->a_fd[i] = fd;  in set_active_fd()
531 	mutex_exit(&afd->a_fdlock);  in set_active_fd()
533 	if (old_nfd > sizeof (afd->a_buf) / sizeof (afd->a_buf[0])) {  in set_active_fd()
535 		kmem_free(old_fd, old_nfd * sizeof (afd->a_fd[0]));  in set_active_fd()
542 	afd_t *afd = &curthread->t_activefd;  in clear_active_fd()  local
545 	for (i = 0; i < afd->a_nfd; i++) {  in clear_active_fd()
546 		if (afd->a_fd[i] == fd) {  in clear_active_fd()
547 			afd->a_fd[i] = -1;  in clear_active_fd()
551 	ASSERT(i < afd->a_nfd);		/* not found is not ok */  in clear_active_fd()
560 	afd_t *afd = &t->t_activefd;  in is_active_fd()  local
564 	mutex_enter(&afd->a_fdlock);  in is_active_fd()
566 	for (i = 0; i < afd->a_nfd; i++) {  in is_active_fd()
567 		if (afd->a_fd[i] == fd) {  in is_active_fd()
568 			mutex_exit(&afd->a_fdlock);  in is_active_fd()
572 	mutex_exit(&afd->a_fdlock);  in is_active_fd()