return ret;
}
+/*********************************
+* lru functions
+**********************************/
+
/* should be called under RCU */
#ifdef CONFIG_MEMCG
static inline struct mem_cgroup *mem_cgroup_from_entry(struct zswap_entry *entry)
return page_to_nid(virt_to_page(entry));
}
+void zswap_lruvec_state_init(struct lruvec *lruvec)
+{
+ atomic_long_set(&lruvec->zswap_lruvec_state.nr_zswap_protected, 0);
+}
+
+void zswap_folio_swapin(struct folio *folio)
+{
+ struct lruvec *lruvec;
+
+ if (folio) {
+ lruvec = folio_lruvec(folio);
+ atomic_long_inc(&lruvec->zswap_lruvec_state.nr_zswap_protected);
+ }
+}
+
void zswap_memcg_offline_cleanup(struct mem_cgroup *memcg)
{
struct zswap_pool *pool;
kmem_cache_free(zswap_entry_cache, entry);
}
-/*********************************
-* zswap lruvec functions
-**********************************/
-void zswap_lruvec_state_init(struct lruvec *lruvec)
-{
- atomic_long_set(&lruvec->zswap_lruvec_state.nr_zswap_protected, 0);
-}
-
-void zswap_folio_swapin(struct folio *folio)
-{
- struct lruvec *lruvec;
-
- VM_WARN_ON_ONCE(!folio_test_locked(folio));
- lruvec = folio_lruvec(folio);
- atomic_long_inc(&lruvec->zswap_lruvec_state.nr_zswap_protected);
-}
-
/*********************************
* lru functions
**********************************/