Symbol: sys_fstatvfs
sys/kern/init_sysent.c
518
{ AS(fstatvfs_args), 4, (sy_call_t *)sys_fstatvfs }, /* 501 = fstatvfs */
sys/sys/sysproto.h
1735
int sys_fstatvfs (struct sysmsg *sysmsg, const struct fstatvfs_args *);