linux-kernel - [PATCH v2 05/23] mm: declare memcg_page_state

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Message-ID: <20251027231727.472628-6-roman.gushchin@linux.dev>
Date: Mon, 27 Oct 2025 16:17:08 -0700
From: Roman Gushchin <roman.gushchin@...ux.dev>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org,
	Alexei Starovoitov <ast@...nel.org>,
	Suren Baghdasaryan <surenb@...gle.com>,
	Michal Hocko <mhocko@...nel.org>,
	Shakeel Butt <shakeel.butt@...ux.dev>,
	Johannes Weiner <hannes@...xchg.org>,
	Andrii Nakryiko <andrii@...nel.org>,
	JP Kobryn <inwardvessel@...il.com>,
	linux-mm@...ck.org,
	cgroups@...r.kernel.org,
	bpf@...r.kernel.org,
	Martin KaFai Lau <martin.lau@...nel.org>,
	Song Liu <song@...nel.org>,
	Kumar Kartikeya Dwivedi <memxor@...il.com>,
	Tejun Heo <tj@...nel.org>,
	Roman Gushchin <roman.gushchin@...ux.dev>
Subject: [PATCH v2 05/23] mm: declare memcg_page_state_output() in memcontrol.h

To use memcg_page_state_output() in bpf_memcontrol.c move the
declaration from v1-specific memcontrol-v1.h to memcontrol.h.

Signed-off-by: Roman Gushchin <roman.gushchin@...ux.dev>
---
 include/linux/memcontrol.h | 1 +
 mm/memcontrol-v1.h         | 1 -
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 9af9ae28afe7..50d851ff3f27 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -949,6 +949,7 @@ static inline void mod_memcg_page_state(struct page *page,
 }
 
 unsigned long memcg_page_state(struct mem_cgroup *memcg, int idx);
+unsigned long memcg_page_state_output(struct mem_cgroup *memcg, int item);
 unsigned long lruvec_page_state(struct lruvec *lruvec, enum node_stat_item idx);
 unsigned long lruvec_page_state_local(struct lruvec *lruvec,
 				      enum node_stat_item idx);
diff --git a/mm/memcontrol-v1.h b/mm/memcontrol-v1.h
index 6358464bb416..a304ad418cdf 100644
--- a/mm/memcontrol-v1.h
+++ b/mm/memcontrol-v1.h
@@ -27,7 +27,6 @@ unsigned long mem_cgroup_usage(struct mem_cgroup *memcg, bool swap);
 void drain_all_stock(struct mem_cgroup *root_memcg);
 
 unsigned long memcg_events(struct mem_cgroup *memcg, int event);
-unsigned long memcg_page_state_output(struct mem_cgroup *memcg, int item);
 int memory_stat_show(struct seq_file *m, void *v);
 
 void mem_cgroup_id_get_many(struct mem_cgroup *memcg, unsigned int n);
-- 
2.51.0