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-rw-r--r--mm/backing-dev.c2
-rw-r--r--mm/memcontrol.c5
2 files changed, 3 insertions, 4 deletions
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 7340353f8aea..cc5d29d2da9b 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -672,7 +672,7 @@ static int cgwb_bdi_init(struct backing_dev_info *bdi)
ret = wb_init(&bdi->wb, bdi, 1, GFP_KERNEL);
if (!ret) {
- bdi->wb.memcg_css = mem_cgroup_root_css;
+ bdi->wb.memcg_css = &root_mem_cgroup->css;
bdi->wb.blkcg_css = blkcg_root_css;
}
return ret;
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 0bc140d998ad..44ed2dee8f0c 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -76,9 +76,9 @@
struct cgroup_subsys memory_cgrp_subsys __read_mostly;
EXPORT_SYMBOL(memory_cgrp_subsys);
+struct mem_cgroup *root_mem_cgroup __read_mostly;
+
#define MEM_CGROUP_RECLAIM_RETRIES 5
-static struct mem_cgroup *root_mem_cgroup __read_mostly;
-struct cgroup_subsys_state *mem_cgroup_root_css __read_mostly;
/* Whether the swap controller is active */
#ifdef CONFIG_MEMCG_SWAP
@@ -4241,7 +4241,6 @@ mem_cgroup_css_alloc(struct cgroup_subsys_state *parent_css)
/* root ? */
if (parent_css == NULL) {
root_mem_cgroup = memcg;
- mem_cgroup_root_css = &memcg->css;
page_counter_init(&memcg->memory, NULL);
memcg->high = PAGE_COUNTER_MAX;
memcg->soft_limit = PAGE_COUNTER_MAX;