On Tue, Feb 14, 2017 at 08:48:29PM +0800, Yisheng Xie wrote: > We had used page->lru to link the component pages (except the first > page) of a zspage, and used INIT_LIST_HEAD(&page->lru) to init it. > Therefore, to get the last page's next page, which is NULL, we had to > use page flag PG_Private_2 to identify it. > > But now, we use page->freelist to link all of the pages in zspage and > init the page->freelist as NULL for last page, so no need to use > PG_Private_2 anymore. > > This patch is to remove redundant SetPagePrivate2 in create_page_chain > and ClearPagePrivate2 in reset_page(). Maybe can save few cycles for > migration of zsmalloc page :) > > Signed-off-by: Yisheng Xie <xieyishe...@huawei.com> Acked-by: Minchan Kim <minc...@kernel.org>
Thanks, Yisheng!
