55 void page_counter_cancel(struct page_counter *counter, unsigned long nr_pages)  in page_counter_cancel()  argument
59 	new = atomic_long_sub_return(nr_pages, &counter->usage);  in page_counter_cancel()
60 	propagate_protected_usage(counter, new);  in page_counter_cancel()
72 void page_counter_charge(struct page_counter *counter, unsigned long nr_pages)  in page_counter_charge()  argument
76 	for (c = counter; c; c = c->parent) {  in page_counter_charge()
80 		propagate_protected_usage(counter, new);  in page_counter_charge()
99 bool page_counter_try_charge(struct page_counter *counter,  in page_counter_try_charge()  argument
105 	for (c = counter; c; c = c->parent) {  in page_counter_try_charge()
124 			propagate_protected_usage(counter, new);  in page_counter_try_charge()
133 		propagate_protected_usage(counter, new);  in page_counter_try_charge()
144 	for (c = counter; c != *fail; c = c->parent)  in page_counter_try_charge()
155 void page_counter_uncharge(struct page_counter *counter, unsigned long nr_pages)  in page_counter_uncharge()  argument
159 	for (c = counter; c; c = c->parent)  in page_counter_uncharge()
173 int page_counter_set_max(struct page_counter *counter, unsigned long nr_pages)  in page_counter_set_max()  argument
190 		usage = atomic_long_read(&counter->usage);  in page_counter_set_max()
195 		old = xchg(&counter->max, nr_pages);  in page_counter_set_max()
197 		if (atomic_long_read(&counter->usage) <= usage)  in page_counter_set_max()
200 		counter->max = old;  in page_counter_set_max()
212 void page_counter_set_min(struct page_counter *counter, unsigned long nr_pages)  in page_counter_set_min()  argument
216 	counter->min = nr_pages;  in page_counter_set_min()
218 	for (c = counter; c; c = c->parent)  in page_counter_set_min()
229 void page_counter_set_low(struct page_counter *counter, unsigned long nr_pages)  in page_counter_set_low()  argument
233 	counter->low = nr_pages;  in page_counter_set_low()
235 	for (c = counter; c; c = c->parent)  in page_counter_set_low()