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-rw-r--r--mm/memcontrol.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 0083b69b5cac..52837d68bbec 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -853,6 +853,23 @@ void __mod_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx,
__mod_memcg_lruvec_state(lruvec, idx, val);
}
+void __mod_lruvec_page_state(struct page *page, enum node_stat_item idx,
+ int val)
+{
+ struct page *head = compound_head(page); /* rmap on tail pages */
+ pg_data_t *pgdat = page_pgdat(page);
+ struct lruvec *lruvec;
+
+ /* Untracked pages have no memcg, no lruvec. Update only the node */
+ if (!head->mem_cgroup) {
+ __mod_node_page_state(pgdat, idx, val);
+ return;
+ }
+
+ lruvec = mem_cgroup_lruvec(head->mem_cgroup, pgdat);
+ __mod_lruvec_state(lruvec, idx, val);
+}
+
void __mod_lruvec_kmem_state(void *p, enum node_stat_item idx, int val)
{
pg_data_t *pgdat = page_pgdat(virt_to_page(p));