From 4d0e3230a56a75bf26d74b3f4b6cb05a0e9fae60 Mon Sep 17 00:00:00 2001
From: Qian Cai <cai@lca.pw>
Date: Mon, 23 Sep 2019 15:37:19 -0700
Subject: [PATCH] mm/memcontrol.c: fix a -Wunused-function warning
mem_cgroup_id_get() was introduced in commit 73f576c04b94 ("mm:memcontrol:
fix cgroup creation failure after many small jobs").
Later, it no longer has any user since the commits,
1f47b61fb407 ("mm: memcontrol: fix swap counter leak on swapout from offline cgroup")
58fa2a5512d9 ("mm: memcontrol: add sanity checks for memcg->id.ref on get/put")
so safe to remove it.
Link: http://lkml.kernel.org/r/1568648453-5482-1-git-send-email-cai@lca.pw
Signed-off-by: Qian Cai <cai@lca.pw>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
mm/memcontrol.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 80131025f2da..701c1ab79d24 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4930,11 +4930,6 @@ static void mem_cgroup_id_put_many(struct mem_cgroup *memcg, unsigned int n)
}
}
-static inline void mem_cgroup_id_get(struct mem_cgroup *memcg)
-{
- mem_cgroup_id_get_many(memcg, 1);
-}
-
static inline void mem_cgroup_id_put(struct mem_cgroup *memcg)
{
mem_cgroup_id_put_many(memcg, 1);