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-rw-r--r--mm/hugetlb_cgroup.c23
1 files changed, 8 insertions, 15 deletions
diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
index a3f358fb8a0c..b5bde7a5c017 100644
--- a/mm/hugetlb_cgroup.c
+++ b/mm/hugetlb_cgroup.c
@@ -77,7 +77,7 @@ static inline bool hugetlb_cgroup_have_usage(struct cgroup *cg)
return false;
}
-static struct cgroup_subsys_state *hugetlb_cgroup_create(struct cgroup *cgroup)
+static struct cgroup_subsys_state *hugetlb_cgroup_css_alloc(struct cgroup *cgroup)
{
int idx;
struct cgroup *parent_cgroup;
@@ -101,7 +101,7 @@ static struct cgroup_subsys_state *hugetlb_cgroup_create(struct cgroup *cgroup)
return &h_cgroup->css;
}
-static void hugetlb_cgroup_destroy(struct cgroup *cgroup)
+static void hugetlb_cgroup_css_free(struct cgroup *cgroup)
{
struct hugetlb_cgroup *h_cgroup;
@@ -155,18 +155,13 @@ out:
* Force the hugetlb cgroup to empty the hugetlb resources by moving them to
* the parent cgroup.
*/
-static int hugetlb_cgroup_pre_destroy(struct cgroup *cgroup)
+static void hugetlb_cgroup_css_offline(struct cgroup *cgroup)
{
struct hstate *h;
struct page *page;
- int ret = 0, idx = 0;
+ int idx = 0;
do {
- if (cgroup_task_count(cgroup) ||
- !list_empty(&cgroup->children)) {
- ret = -EBUSY;
- goto out;
- }
for_each_hstate(h) {
spin_lock(&hugetlb_lock);
list_for_each_entry(page, &h->hugepage_activelist, lru)
@@ -177,8 +172,6 @@ static int hugetlb_cgroup_pre_destroy(struct cgroup *cgroup)
}
cond_resched();
} while (hugetlb_cgroup_have_usage(cgroup));
-out:
- return ret;
}
int hugetlb_cgroup_charge_cgroup(int idx, unsigned long nr_pages,
@@ -411,8 +404,8 @@ void hugetlb_cgroup_migrate(struct page *oldhpage, struct page *newhpage)
struct cgroup_subsys hugetlb_subsys = {
.name = "hugetlb",
- .create = hugetlb_cgroup_create,
- .pre_destroy = hugetlb_cgroup_pre_destroy,
- .destroy = hugetlb_cgroup_destroy,
- .subsys_id = hugetlb_subsys_id,
+ .css_alloc = hugetlb_cgroup_css_alloc,
+ .css_offline = hugetlb_cgroup_css_offline,
+ .css_free = hugetlb_cgroup_css_free,
+ .subsys_id = hugetlb_subsys_id,
};

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