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* [PATCH] mm: memcontrol: Set the correct memcg swappiness restriction
@ 2021-07-30  6:26 Baolin Wang
  2021-07-30  6:39 ` Michal Hocko
  0 siblings, 1 reply; 5+ messages in thread
From: Baolin Wang @ 2021-07-30  6:26 UTC (permalink / raw)
  To: akpm, hannes, mhocko, vdavydov.dev
  Cc: baolin.wang, cgroups, linux-mm, linux-kernel

Since commit c843966c556d ("mm: allow swappiness that prefers reclaiming
anon over the file workingset") has expended the swappiness value to
make swap to be preferred in some systems. We should also change the
memcg swappiness restriction to allow memcg swap-preferred.

Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
---
 mm/memcontrol.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 6580c23..988fc94 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4046,7 +4046,7 @@ static int mem_cgroup_swappiness_write(struct cgroup_subsys_state *css,
 {
 	struct mem_cgroup *memcg = mem_cgroup_from_css(css);
 
-	if (val > 100)
+	if (val > 200)
 		return -EINVAL;
 
 	if (!mem_cgroup_is_root(memcg))
-- 
1.8.3.1


^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2021-08-03 20:25 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-30  6:26 [PATCH] mm: memcontrol: Set the correct memcg swappiness restriction Baolin Wang
2021-07-30  6:39 ` Michal Hocko
2021-08-03 15:20   ` Vlastimil Babka
2021-08-03 15:45     ` Baolin Wang
2021-08-03 20:25       ` Andrew Morton

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