49 void page_counter_cancel(struct page_counter *counter, unsigned long nr_pages)  in page_counter_cancel()  argument
53 	new = atomic_long_sub_return(nr_pages, &counter->usage);  in page_counter_cancel()
56 		      new, nr_pages)) {  in page_counter_cancel()
70 void page_counter_charge(struct page_counter *counter, unsigned long nr_pages)  in page_counter_charge()  argument
77 		new = atomic_long_add_return(nr_pages, &c->usage);  in page_counter_charge()
98 			     unsigned long nr_pages,  in page_counter_try_charge()  argument
119 		new = atomic_long_add_return(nr_pages, &c->usage);  in page_counter_try_charge()
121 			atomic_long_sub(nr_pages, &c->usage);  in page_counter_try_charge()
143 		page_counter_cancel(c, nr_pages);  in page_counter_try_charge()
153 void page_counter_uncharge(struct page_counter *counter, unsigned long nr_pages)  in page_counter_uncharge()  argument
158 		page_counter_cancel(c, nr_pages);  in page_counter_uncharge()
171 int page_counter_set_max(struct page_counter *counter, unsigned long nr_pages)  in page_counter_set_max()  argument
190 		if (usage > nr_pages)  in page_counter_set_max()
193 		old = xchg(&counter->max, nr_pages);  in page_counter_set_max()
195 		if (page_counter_read(counter) <= usage || nr_pages >= old)  in page_counter_set_max()
210 void page_counter_set_min(struct page_counter *counter, unsigned long nr_pages)  in page_counter_set_min()  argument
214 	WRITE_ONCE(counter->min, nr_pages);  in page_counter_set_min()
227 void page_counter_set_low(struct page_counter *counter, unsigned long nr_pages)  in page_counter_set_low()  argument
231 	WRITE_ONCE(counter->low, nr_pages);  in page_counter_set_low()
247 			  unsigned long *nr_pages)  in page_counter_memparse()  argument
253 		*nr_pages = PAGE_COUNTER_MAX;  in page_counter_memparse()
261 	*nr_pages = min(bytes / PAGE_SIZE, (u64)PAGE_COUNTER_MAX);  in page_counter_memparse()