Function fdused_init

freebsd/kern/kern_descrip.c:255–262

* Mark a file descriptor as used. */

 * Mark a file descriptor as used.
 */
static void
fdused_init(struct filedesc *fdp, int fd)
{

	KASSERT(!fdisused(fdp, fd), ("fd=%d is already used", fd));

	fdp->fd_map[NDSLOT(fd)] |= NDBIT(fd);
}

static void
fdused(struct filedesc *fdp, int fd)