From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Shi Subject: [PATCH 1/3] mm/memcg: revise the using condition of lock_page_lruvec function series Date: Thu, 17 Dec 2020 14:28:50 +0800 Message-ID: <1608186532-81218-1-git-send-email-alex.shi@linux.alibaba.com> Return-path: List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org Cc: Hugh Dickins , Johannes Weiner , Michal Hocko , Vladimir Davydov , cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org The series function could be used under lock_page_memcg(), add this and a bit style changes following commit_charge(). Signed-off-by: Alex Shi Cc: Hugh Dickins Cc: Johannes Weiner Cc: Michal Hocko Cc: Vladimir Davydov Cc: Andrew Morton Cc: cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org --- mm/memcontrol.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index b80328f52fb4..e6b50d068b2f 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1345,10 +1345,11 @@ void lruvec_memcg_debug(struct lruvec *lruvec, struct page *page) * lock_page_lruvec - lock and return lruvec for a given page. * @page: the page * - * This series functions should be used in either conditions: - * PageLRU is cleared or unset - * or page->_refcount is zero - * or page is locked. + * This series functions should be used in any one of following conditions: + * - PageLRU is cleared or unset + * - page->_refcount is zero + * - page is locked. + * - lock_page_memcg() */ struct lruvec *lock_page_lruvec(struct page *page) { -- 2.29.GIT