From: zhongjiang-ali <zhongjiang-ali@xxxxxxxxxxxxxxxxx>
[ Upstream commit 7de2e9f195b9cb27583c5c64deaaf5e6afcc163e ]
memcg_page_state will get the specified number in hierarchical memcg, It
should multiply by HPAGE_PMD_NR rather than an page if the item is
NR_ANON_THPS.
[akpm@xxxxxxxxxxxxxxxxxxxx: fix printk warning]
[akpm@xxxxxxxxxxxxxxxxxxxx: use u64 cast, per Michal]
Fixes: 468c398233da ("mm: memcontrol: switch to native NR_ANON_THPS counter")
Signed-off-by: zhongjiang-ali <zhongjiang-ali@xxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Link: https://lkml.kernel.org/r/1603722395-72443-1-git-send-email-zhongjiang-ali@xxxxxxxxxxxxxxxxx
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
mm/memcontrol.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index de51787831728..51ce5d172855a 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4068,11 +4068,17 @@ static int memcg_stat_show(struct seq_file *m, void *v)
(u64)memsw * PAGE_SIZE);
for (i = 0; i < ARRAY_SIZE(memcg1_stats); i++) {
+ unsigned long nr;
+
if (memcg1_stats[i] == MEMCG_SWAP && !do_memsw_account())
continue;
+ nr = memcg_page_state(memcg, memcg1_stats[i]);
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ if (memcg1_stats[i] == NR_ANON_THPS)
+ nr *= HPAGE_PMD_NR;
+#endif
seq_printf(m, "total_%s %llu\n", memcg1_stat_names[i],
- (u64)memcg_page_state(memcg, memcg1_stats[i]) *
- PAGE_SIZE);
+ (u64)nr * PAGE_SIZE);
}
for (i = 0; i < ARRAY_SIZE(memcg1_events); i++)
--
2.27.0
