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authorShakeel Butt <[email protected]>2021-01-23 21:01:11 -0800
committerLinus Torvalds <[email protected]>2021-01-24 09:20:52 -0800
commit8a8792f600abacd7e1b9bb667759dca1c153f64c (patch)
tree8a4eaa4b0c3a884503b7ade0b999ccbfe70de250
parent3de7d4f25a7438f09fef4e71ef111f1805cd8e7c (diff)
mm: memcg: fix memcg file_dirty numa stat
The kernel updates the per-node NR_FILE_DIRTY stats on page migration but not the memcg numa stats. That was not an issue until recently the commit 5f9a4f4a7096 ("mm: memcontrol: add the missing numa_stat interface for cgroup v2") exposed numa stats for the memcg. So fix the file_dirty per-memcg numa stat. Link: https://lkml.kernel.org/r/[email protected] Fixes: 5f9a4f4a7096 ("mm: memcontrol: add the missing numa_stat interface for cgroup v2") Signed-off-by: Shakeel Butt <[email protected]> Reviewed-by: Muchun Song <[email protected]> Acked-by: Yang Shi <[email protected]> Reviewed-by: Roman Gushchin <[email protected]> Cc: Johannes Weiner <[email protected]> Cc: Michal Hocko <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
-rw-r--r--mm/migrate.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/migrate.c b/mm/migrate.c
index ee5e612b4cd8..613794f6a433 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -500,9 +500,9 @@ int migrate_page_move_mapping(struct address_space *mapping,
__inc_lruvec_state(new_lruvec, NR_SHMEM);
}
if (dirty && mapping_can_writeback(mapping)) {
- __dec_node_state(oldzone->zone_pgdat, NR_FILE_DIRTY);
+ __dec_lruvec_state(old_lruvec, NR_FILE_DIRTY);
__dec_zone_state(oldzone, NR_ZONE_WRITE_PENDING);
- __inc_node_state(newzone->zone_pgdat, NR_FILE_DIRTY);
+ __inc_lruvec_state(new_lruvec, NR_FILE_DIRTY);
__inc_zone_state(newzone, NR_ZONE_WRITE_PENDING);
}
}