[PATCH 1/4] mm: thp: replace folio_memcg() with folio_memcg_charged()

Qi Zheng posted 4 patches 1 week, 6 days ago
There is a newer version of this series
[PATCH 1/4] mm: thp: replace folio_memcg() with folio_memcg_charged()
Posted by Qi Zheng 1 week, 6 days ago
From: Muchun Song <songmuchun@bytedance.com>

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@bytedance.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
---
 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 5acca24bbabbe..582628ddf3f33 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -4014,7 +4014,7 @@ 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
Re: [PATCH 1/4] mm: thp: replace folio_memcg() with folio_memcg_charged()
Posted by David Hildenbrand 1 week, 2 days ago
On 19.09.25 05:46, Qi Zheng wrote:
> From: Muchun Song <songmuchun@bytedance.com>
> 
> 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@bytedance.com>
> Acked-by: Johannes Weiner <hannes@cmpxchg.org>
> Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
> ---

Acked-by: David Hildenbrand <david@redhat.com>

-- 
Cheers

David / dhildenb
Re: [PATCH 1/4] mm: thp: replace folio_memcg() with folio_memcg_charged()
Posted by Shakeel Butt 1 week, 5 days ago
On Fri, Sep 19, 2025 at 11:46:32AM +0800, Qi Zheng wrote:
> From: Muchun Song <songmuchun@bytedance.com>
> 
> 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@bytedance.com>
> Acked-by: Johannes Weiner <hannes@cmpxchg.org>
> Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>

Acked-by: Shakeel Butt <shakeel.butt@linux.dev>