diff options
Diffstat (limited to 'mm/memcontrol.c')
| -rw-r--r-- | mm/memcontrol.c | 33 |
1 files changed, 12 insertions, 21 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 211f3911228f..33bb8434eea0 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -6693,8 +6693,7 @@ void mem_cgroup_calculate_protection(struct mem_cgroup *root, atomic_long_read(&parent->memory.children_low_usage))); } -static int __mem_cgroup_charge(struct page *page, struct mem_cgroup *memcg, - gfp_t gfp) +static int charge_memcg(struct page *page, struct mem_cgroup *memcg, gfp_t gfp) { unsigned int nr_pages = thp_nr_pages(page); int ret; @@ -6715,7 +6714,7 @@ out: } /** - * mem_cgroup_charge - charge a newly allocated page to a cgroup + * __mem_cgroup_charge - charge a newly allocated page to a cgroup * @page: page to charge * @mm: mm context of the victim * @gfp_mask: reclaim mode @@ -6728,16 +6727,14 @@ out: * * Returns 0 on success. Otherwise, an error code is returned. */ -int mem_cgroup_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask) +int __mem_cgroup_charge(struct page *page, struct mm_struct *mm, + gfp_t gfp_mask) { struct mem_cgroup *memcg; int ret; - if (mem_cgroup_disabled()) - return 0; - memcg = get_mem_cgroup_from_mm(mm); - ret = __mem_cgroup_charge(page, memcg, gfp_mask); + ret = charge_memcg(page, memcg, gfp_mask); css_put(&memcg->css); return ret; @@ -6772,7 +6769,7 @@ int mem_cgroup_swapin_charge_page(struct page *page, struct mm_struct *mm, memcg = get_mem_cgroup_from_mm(mm); rcu_read_unlock(); - ret = __mem_cgroup_charge(page, memcg, gfp); + ret = charge_memcg(page, memcg, gfp); css_put(&memcg->css); return ret; @@ -6908,18 +6905,15 @@ static void uncharge_page(struct page *page, struct uncharge_gather *ug) } /** - * mem_cgroup_uncharge - uncharge a page + * __mem_cgroup_uncharge - uncharge a page * @page: page to uncharge * - * Uncharge a page previously charged with mem_cgroup_charge(). + * Uncharge a page previously charged with __mem_cgroup_charge(). */ -void mem_cgroup_uncharge(struct page *page) +void __mem_cgroup_uncharge(struct page *page) { struct uncharge_gather ug; - if (mem_cgroup_disabled()) - return; - /* Don't touch page->lru of any random page, pre-check: */ if (!page_memcg(page)) return; @@ -6930,20 +6924,17 @@ void mem_cgroup_uncharge(struct page *page) } /** - * mem_cgroup_uncharge_list - uncharge a list of page + * __mem_cgroup_uncharge_list - uncharge a list of page * @page_list: list of pages to uncharge * * Uncharge a list of pages previously charged with - * mem_cgroup_charge(). + * __mem_cgroup_charge(). */ -void mem_cgroup_uncharge_list(struct list_head *page_list) +void __mem_cgroup_uncharge_list(struct list_head *page_list) { struct uncharge_gather ug; struct page *page; - if (mem_cgroup_disabled()) - return; - uncharge_gather_clear(&ug); list_for_each_entry(page, page_list, lru) uncharge_page(page, &ug); |