void lru_cache_add_file(struct page *page)
{
if (PageActive(page))
ClearPageActive(page);
__lru_cache_add(page);
}
/**
* lru_cache_add - add a page to a page list
* @page: the page to be added to the LRU.
*
* Queue the page for addition to the LRU via pagevec. The decision on whether
* to add the page to the [in]active [file|anon] list is deferred until the
* pagevec is drained. This gives a chance for the caller of lru_cache_add()
* have the page added to the active list using mark_page_accessed().
*/
void lru_cache_add(struct page *page)
{
VM_BUG_ON_PAGE(PageActive(page) && PageUnevictable(page), page);
VM_BUG_ON_PAGE(PageLRU(page), page);
__lru_cache_add(page);
}