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-rw-r--r--mm/memcontrol.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index f4ea3410fb4d..741206ffdace 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1027,10 +1027,6 @@ mem_cgroup_get_reclaim_stat_from_page(struct page *page)
{
struct page_cgroup *pc;
struct mem_cgroup_per_zone *mz;
- int page_size = PAGE_SIZE;
-
- if (PageTransHuge(page))
- page_size <<= compound_order(page);
if (mem_cgroup_disabled())
return NULL;
@@ -2286,8 +2282,10 @@ static int mem_cgroup_charge_common(struct page *page, struct mm_struct *mm,
int ret;
int page_size = PAGE_SIZE;
- if (PageTransHuge(page))
+ if (PageTransHuge(page)) {
page_size <<= compound_order(page);
+ VM_BUG_ON(!PageTransHuge(page));
+ }
pc = lookup_page_cgroup(page);
/* can happen at boot */
@@ -2558,8 +2556,10 @@ __mem_cgroup_uncharge_common(struct page *page, enum charge_type ctype)
if (PageSwapCache(page))
return NULL;
- if (PageTransHuge(page))
+ if (PageTransHuge(page)) {
page_size <<= compound_order(page);
+ VM_BUG_ON(!PageTransHuge(page));
+ }
count = page_size >> PAGE_SHIFT;
/*