mm: drop mem_cgroup_usage() declaration from memcontrol.h

mem_cgroup_usage() is not used outside of memcg-v1 code,
the declaration was added by a mistake.

Signed-off-by: Roman Gushchin <roman.gushchin@linux.dev>
Link: https://lore.kernel.org/r/20260106042313.140256-1-roman.gushchin@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 6a5d65487b7049295e70484761a788c89917565b..229ac9835adbe083f9739359e9c83df7db4720dc 100644 (file)
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -950,7 +950,6 @@ static inline void mod_memcg_page_state(struct page *page,
 }
 
 unsigned long memcg_events(struct mem_cgroup *memcg, int event);
-unsigned long mem_cgroup_usage(struct mem_cgroup *memcg, bool swap);
 unsigned long memcg_page_state(struct mem_cgroup *memcg, int idx);
 unsigned long memcg_page_state_output(struct mem_cgroup *memcg, int item);
 bool memcg_stat_item_valid(int idx);