[PATCH RFC 05/28] mm: thp: replace folio_memcg() with folio_memcg_charged()

From: Muchun Song
Date: Mon Apr 14 2025 - 22:48:47 EST


folio_memcg_charged() is intended for use when the user is unconcerned
about the returned memcg pointer. It is more efficient than folio_memcg().
Therefore, replace folio_memcg() with folio_memcg_charged().

Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
---
mm/huge_memory.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index df66aa4bc4c2..a81e89987ca2 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -4048,7 +4048,7 @@ bool __folio_unqueue_deferred_split(struct folio *folio)
bool unqueued = false;

WARN_ON_ONCE(folio_ref_count(folio));
- WARN_ON_ONCE(!mem_cgroup_disabled() && !folio_memcg(folio));
+ WARN_ON_ONCE(!mem_cgroup_disabled() && !folio_memcg_charged(folio));

ds_queue = get_deferred_split_queue(folio);
spin_lock_irqsave(&ds_queue->split_queue_lock, flags);
--
2.20.1