fd_statfs
int error = fd_statfs(fd, &linux_stat);
int error = fd_statfs(fd, &linux_stat);
int error = fd_statfs(fd, &st);
error = fd_statfs(fd, &st);
int error = fd_statfs(fd, &tmp);
error = fd_statfs(fd, &tmp);
extern int fd_statfs(int, struct kstatfs *);