38 	struct page_counter *c;  in page_counter_charge()  local
40 	for (c = counter; c; c = c->parent) {  in page_counter_charge()
43 		new = atomic_long_add_return(nr_pages, &c->count);  in page_counter_charge()
48 		if (new > c->watermark)  in page_counter_charge()
49 			c->watermark = new;  in page_counter_charge()
66 	struct page_counter *c;  in page_counter_try_charge()  local
68 	for (c = counter; c; c = c->parent) {  in page_counter_try_charge()
84 		new = atomic_long_add_return(nr_pages, &c->count);  in page_counter_try_charge()
85 		if (new > c->limit) {  in page_counter_try_charge()
86 			atomic_long_sub(nr_pages, &c->count);  in page_counter_try_charge()
91 			c->failcnt++;  in page_counter_try_charge()
92 			*fail = c;  in page_counter_try_charge()
99 		if (new > c->watermark)  in page_counter_try_charge()
100 			c->watermark = new;  in page_counter_try_charge()
105 	for (c = counter; c != *fail; c = c->parent)  in page_counter_try_charge()
106 		page_counter_cancel(c, nr_pages);  in page_counter_try_charge()
118 	struct page_counter *c;  in page_counter_uncharge()  local
120 	for (c = counter; c; c = c->parent)  in page_counter_uncharge()
121 		page_counter_cancel(c, nr_pages);  in page_counter_uncharge()