Add new wrapper functions folio_memcg(), lock_folio_memcg(),
unlock_folio_memcg() and mem_cgroup_folio_lruvec().
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
include/linux/memcontrol.h | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 4064c9dda534..493136f495b6 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -397,6 +397,11 @@ static inline struct mem_cgroup *page_memcg(struct page *page)
return (struct mem_cgroup *)(memcg_data & ~MEMCG_DATA_FLAGS_MASK);
}
+static inline struct mem_cgroup *folio_memcg(struct folio *folio)
+{
+ return page_memcg(&folio->page);
+}
+
/*
* page_memcg_rcu - locklessly get the memory cgroup associated with a page
* @page: a pointer to the page struct
@@ -1400,6 +1405,22 @@ unsigned long mem_cgroup_soft_limit_reclaim(pg_data_t *pgdat, int order,
}
#endif /* CONFIG_MEMCG */
+static inline void lock_folio_memcg(struct folio *folio)
+{
+ lock_page_memcg(&folio->page);
+}
+
+static inline void unlock_folio_memcg(struct folio *folio)
+{
+ unlock_page_memcg(&folio->page);
+}
+
+static inline struct lruvec *mem_cgroup_folio_lruvec(struct folio *folio,
+ struct pglist_data *pgdat)
+{
+ return mem_cgroup_page_lruvec(&folio->page, pgdat);
+}
+
static inline void __inc_lruvec_kmem_state(void *p, enum node_stat_item idx)
{
__mod_lruvec_kmem_state(p, idx, 1);
--
2.30.2
