linux-kernel - [PATCH v2 1/3] mm, memcg: remove unused functions

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Message-ID: <20210807082835.61281-2-linmiaohe@huawei.com>
Date:   Sat, 7 Aug 2021 16:28:33 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     <hannes@...xchg.org>, <mhocko@...nel.org>,
        <vdavydov.dev@...il.com>, <akpm@...ux-foundation.org>,
        <shakeelb@...gle.com>, <guro@...com>, <songmuchun@...edance.com>
CC:     <willy@...radead.org>, <alexs@...nel.org>,
        <richard.weiyang@...il.com>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>, <cgroups@...r.kernel.org>,
        <linmiaohe@...wei.com>
Subject: [PATCH v2 1/3] mm, memcg: remove unused functions

Since commit 2d146aa3aa84 ("mm: memcontrol: switch to rstat"), last user
of memcg_stat_item_in_bytes() is gone. And since commit fa40d1ee9f15 ("mm:
vmscan: memcontrol: remove mem_cgroup_select_victim_node()"), only the
declaration of mem_cgroup_select_victim_node() is remained here. Remove
them.

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
Reviewed-by: Shakeel Butt <shakeelb@...gle.com>
Reviewed-by: Muchun Song <songmuchun@...edance.com>
Acked-by: Roman Gushchin <guro@...com>
Acked-by: Michal Hocko <mhocko@...e.com>
---
 include/linux/memcontrol.h | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 7028d8e4a3d7..04437504444f 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -606,13 +606,6 @@ static inline bool PageMemcgKmem(struct page *page)
 	return folio_memcg_kmem(page_folio(page));
 }
 
-static __always_inline bool memcg_stat_item_in_bytes(int idx)
-{
-	if (idx == MEMCG_PERCPU_B)
-		return true;
-	return vmstat_item_in_bytes(idx);
-}
-
 static inline bool mem_cgroup_is_root(struct mem_cgroup *memcg)
 {
 	return (memcg == root_mem_cgroup);
@@ -916,11 +909,6 @@ static inline bool mem_cgroup_online(struct mem_cgroup *memcg)
 	return !!(memcg->css.flags & CSS_ONLINE);
 }
 
-/*
- * For memory reclaim.
- */
-int mem_cgroup_select_victim_node(struct mem_cgroup *memcg);
-
 void mem_cgroup_update_lru_size(struct lruvec *lruvec, enum lru_list lru,
 		int zid, int nr_pages);
 
-- 
2.23.0