int f2fs_release_page(struct page *page, gfp_t wait)
{
	/* If this is dirty page, keep PagePrivate */
	if (PageDirty(page))
		return 0;

	/* This is atomic written page, keep Private */
	if (IS_ATOMIC_WRITTEN_PAGE(page))
		return 0;

	clear_cold_data(page);
	f2fs_clear_page_private(page);
	return 1;
}
int f2fs_release_page(struct page *page, gfp_t wait)
{
	 
	if (PageDirty(page))
		return 0;

	 
	if (IS_ATOMIC_WRITTEN_PAGE(page))
		return 0;

	clear_cold_data(page);
	f2fs_clear_page_private(page);
	return 1;
}