memcg-workingset-remove-folio_memcg_rcu-usage-fix

fix build: provide folio_memcg_charged stub for CONFIG_MEMCG=n

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Yosry Ahmed <yosryahmed@google.com>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 89a1e9f10e1bccad33137af214378955671d162b..5502aa8e138ec0c0f2a5af9eb5b489cc71604e4c 100644 (file)
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -1055,6 +1055,11 @@ static inline struct mem_cgroup *folio_memcg(struct folio *folio)
        return NULL;
 }
 
+static inline bool folio_memcg_charged(struct folio *folio)
+{
+       return false;
+}
+
 static inline struct mem_cgroup *folio_memcg_check(struct folio *folio)
 {
        return NULL;