From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hui Zhu Subject: [RFC] memcg: Add swappiness to cgroup2 Date: Wed, 25 Dec 2019 13:36:48 +0800 Message-ID: <1577252208-32419-1-git-send-email-teawater@gmail.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: hannes@cmpxchg.org, mhocko@kernel.org, vdavydov.dev@gmail.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, linux-mm@kvack.org Cc: Hui Zhu , Hui Zhu Even if cgroup2 has swap.max, swappiness is still a very useful config. This commit add swappiness to cgroup2. Signed-off-by: Hui Zhu --- mm/memcontrol.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index c5b5f74..e966396 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -7143,6 +7143,11 @@ static struct cftype swap_files[] = { .file_offset = offsetof(struct mem_cgroup, swap_events_file), .seq_show = swap_events_show, }, + { + .name = "swappiness", + .read_u64 = mem_cgroup_swappiness_read, + .write_u64 = mem_cgroup_swappiness_write, + }, { } /* terminate */ }; -- 2.7.4