According to Documentation/cachetlb.txt, the cache of the page at vmaddr shall be flushed in flush_anon_page instead of the cache of the page at page_address(page). Signed-off-by: Vincent Chen <vincentc@andestech.com> Reviewed-by: Greentime Hu <greentime@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com>