nmount_args
{ .sy_narg = AS(nmount_args), .sy_call = (sy_call_t *)sys_nmount, .sy_auevent = AUE_NMOUNT, .sy_flags = 0, .sy_thrcnt = SY_THR_STATIC }, /* 378 = nmount */
struct nmount_args *p = params;
sys_nmount(struct thread *td, struct nmount_args *uap)
int sys_nmount(struct thread *, struct nmount_args *);