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authorLu Jialin <lujialin4@huawei.com>2022-04-29 09:16:00 +0300
committerakpm <akpm@linux-foundation.org>2022-04-29 09:16:00 +0300
commitef7a4ffc4c7f969d61e297c53cb2de1d6f012a11 (patch)
treed60d1671963497d669b2d0d58d4eb7d3a5a24bd9
parent9c946e3e7f579081a2dd6912a8a23baedef8c3f9 (diff)
downloadlinux-ef7a4ffc4c7f969d61e297c53cb2de1d6f012a11.tar.xz
mm/memcontrol.c: make cgroup_memory_noswap static
cgroup_memory_noswap is only used in mm/memcontrol.c, therefore just make it static, and remove export in include/linux/memcontrol.h Link: https://lkml.kernel.org/r/20220421124736.62180-1-lujialin4@huawei.com Signed-off-by: Lu Jialin <lujialin4@huawei.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Shakeel Butt <shakeelb@google.com> Acked-by: Roman Gushchin <roman.gushchin@linux.dev> Reviewed-by: Muchun Song <songmuchun@bytedance.com> Cc: Michal Hocko <mhocko@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-rw-r--r--include/linux/memcontrol.h4
-rw-r--r--mm/memcontrol.c2
2 files changed, 1 insertions, 5 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 89b14729d59f..fe580cb96683 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -937,10 +937,6 @@ struct mem_cgroup *mem_cgroup_get_oom_group(struct task_struct *victim,
struct mem_cgroup *oom_domain);
void mem_cgroup_print_oom_group(struct mem_cgroup *memcg);
-#ifdef CONFIG_MEMCG_SWAP
-extern bool cgroup_memory_noswap;
-#endif
-
void folio_memcg_lock(struct folio *folio);
void folio_memcg_unlock(struct folio *folio);
void lock_page_memcg(struct page *page);
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index b2d5c6618c8a..5cf5e32de313 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -89,7 +89,7 @@ static bool cgroup_memory_nokmem __ro_after_init;
/* Whether the swap controller is active */
#ifdef CONFIG_MEMCG_SWAP
-bool cgroup_memory_noswap __ro_after_init;
+static bool cgroup_memory_noswap __ro_after_init;
#else
#define cgroup_memory_noswap 1
#endif