diff options
| -rw-r--r-- | mm/memcontrol.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index f72067094e0..8b9f6cae938 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -623,13 +623,13 @@ retry: goto retry; } page_assign_page_cgroup(page, pc); - unlock_page_cgroup(page); mz = page_cgroup_zoneinfo(pc); spin_lock_irqsave(&mz->lru_lock, flags); __mem_cgroup_add_list(pc); spin_unlock_irqrestore(&mz->lru_lock, flags); + unlock_page_cgroup(page); done: return 0; out: @@ -677,14 +677,14 @@ void mem_cgroup_uncharge_page(struct page *page) VM_BUG_ON(pc->ref_cnt <= 0); if (--(pc->ref_cnt) == 0) { - page_assign_page_cgroup(page, NULL); - unlock_page_cgroup(page); - mz = page_cgroup_zoneinfo(pc); spin_lock_irqsave(&mz->lru_lock, flags); __mem_cgroup_remove_list(pc); spin_unlock_irqrestore(&mz->lru_lock, flags); + page_assign_page_cgroup(page, NULL); + unlock_page_cgroup(page); + mem = pc->mem_cgroup; res_counter_uncharge(&mem->res, PAGE_SIZE); css_put(&mem->css); @@ -736,23 +736,24 @@ void mem_cgroup_page_migration(struct page *page, struct page *newpage) return; } - page_assign_page_cgroup(page, NULL); - unlock_page_cgroup(page); - mz = page_cgroup_zoneinfo(pc); spin_lock_irqsave(&mz->lru_lock, flags); __mem_cgroup_remove_list(pc); spin_unlock_irqrestore(&mz->lru_lock, flags); + page_assign_page_cgroup(page, NULL); + unlock_page_cgroup(page); + pc->page = newpage; lock_page_cgroup(newpage); page_assign_page_cgroup(newpage, pc); - unlock_page_cgroup(newpage); mz = page_cgroup_zoneinfo(pc); spin_lock_irqsave(&mz->lru_lock, flags); __mem_cgroup_add_list(pc); spin_unlock_irqrestore(&mz->lru_lock, flags); + + unlock_page_cgroup(newpage); } /* |