linux_dirent
struct linux_dirent __user * current_dir;
struct linux_dirent __user *dirent, *prev;
int reclen = ALIGN(offsetof(struct linux_dirent, d_name) + namlen + 2,
struct linux_dirent __user *, dirent, unsigned int, count)
struct linux_dirent __user * lastdirent;
struct linux_dirent __user *dirent,
struct linux_dirent;