fd_range
static unsigned int sane_fdtable_size(struct fdtable *fdt, struct fd_range *punch_hole)
struct files_struct *dup_fd(struct files_struct *oldf, struct fd_range *punch_hole)
struct fd_range range = {fd, max_fd}, *punch_hole = ⦥
struct files_struct *dup_fd(struct files_struct *, struct fd_range *) __latent_entropy;