9 struct page_counter {  struct
15 	struct page_counter *parent;  argument
38 static inline void page_counter_init(struct page_counter *counter,  in page_counter_init()  argument
39 				     struct page_counter *parent)  in page_counter_init()
46 static inline unsigned long page_counter_read(struct page_counter *counter)  in page_counter_read()
51 void page_counter_cancel(struct page_counter *counter, unsigned long nr_pages);
52 void page_counter_charge(struct page_counter *counter, unsigned long nr_pages);
53 bool page_counter_try_charge(struct page_counter *counter,
55 			     struct page_counter **fail);
56 void page_counter_uncharge(struct page_counter *counter, unsigned long nr_pages);
57 void page_counter_set_min(struct page_counter *counter, unsigned long nr_pages);
58 void page_counter_set_low(struct page_counter *counter, unsigned long nr_pages);
60 static inline void page_counter_set_high(struct page_counter *counter,  in page_counter_set_high()
66 int page_counter_set_max(struct page_counter *counter, unsigned long nr_pages);
70 static inline void page_counter_reset_watermark(struct page_counter *counter)  in page_counter_reset_watermark()