From mboxrd@z Thu Jan 1 00:00:00 1970 From: Johannes Weiner Subject: [PATCH 1/2] mm: migrate: consolidate mem_cgroup_migrate() calls Date: Thu, 4 Feb 2016 15:07:46 -0500 Message-ID: <1454616467-8994-1-git-send-email-hannes@cmpxchg.org> Return-path: Sender: cgroups-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Andrew Morton Cc: Hugh Dickins , Vladimir Davydov , Michal Hocko , Mateusz Guzik , Sergey Senozhatsky , linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kernel-team-b10kYP2dOMg@public.gmane.org Rather than scattering mem_cgroup_migrate() calls all over the place, have a single call from a safe place where every migration operation eventually ends up in - migrate_page_copy(). Signed-off-by: Johannes Weiner Suggested-by: Hugh Dickins --- mm/migrate.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index 17db63b2dd36..90cbf7c65cac 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -331,8 +331,6 @@ int migrate_page_move_mapping(struct address_space *mapping, if (PageSwapBacked(page)) SetPageSwapBacked(newpage); - mem_cgroup_migrate(page, newpage); - return MIGRATEPAGE_SUCCESS; } @@ -428,8 +426,6 @@ int migrate_page_move_mapping(struct address_space *mapping, } local_irq_enable(); - mem_cgroup_migrate(page, newpage); - return MIGRATEPAGE_SUCCESS; } @@ -471,8 +467,6 @@ int migrate_huge_page_move_mapping(struct address_space *mapping, spin_unlock_irq(&mapping->tree_lock); - mem_cgroup_migrate(page, newpage); - return MIGRATEPAGE_SUCCESS; } @@ -586,6 +580,8 @@ void migrate_page_copy(struct page *newpage, struct page *page) end_page_writeback(newpage); copy_page_owner(page, newpage); + + mem_cgroup_migrate(page, newpage); } /************************************************************ @@ -1846,7 +1842,6 @@ fail_putback: } mlock_migrate_page(new_page, page); - mem_cgroup_migrate(page, new_page); page_remove_rmap(page, true); set_page_owner_migrate_reason(new_page, MR_NUMA_MISPLACED); -- 2.7.0