Changed the remark from 'See common_paged_ram_crw_crw for details' to 'See...

Changed the remark from 'See common_paged_ram_crw_crw for details' to 'See common_paged_ram_rw_rw for details', because it uses common_paged_ram_rw_rw and that one is changed. And changed next_page_* to *_next_page.