static int __f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
			  struct file *file, umode_t mode, bool is_whiteout,
			  struct inode **new_inode)
static int __f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
			  struct file *file, umode_t mode, bool is_whiteout,
			  struct inode **new_inode, struct f2fs_filename *fname)