#ifndef _LINUX_PAGEVEC_H
#define _LINUX_PAGEVEC_H

#define PAGEVEC_SIZE	14

struct page;
struct address_space;

struct pagevec {
	unsigned long nr;
	unsigned long cold;
	struct page *pages[PAGEVEC_SIZE];
};

void __pagevec_release(struct pagevec *pvec);
void __pagevec_lru_add(struct pagevec *pvec, enum lru_list lru);
unsigned pagevec_lookup(struct pagevec *pvec, struct address_space *mapping,
		pgoff_t start, unsigned nr_pages);
unsigned pagevec_lookup_tag(struct pagevec *pvec,
		struct address_space *mapping, pgoff_t *index, int tag,
		unsigned nr_pages);

static inline void pagevec_init(struct pagevec *pvec, int cold)
{
	pvec->nr = 0;
	pvec->cold = cold;
}

static inline void pagevec_reinit(struct pagevec *pvec)
{
	pvec->nr = 0;
}

static inline unsigned pagevec_count(struct pagevec *pvec)
{
	return pvec->nr;
}

static inline unsigned pagevec_space(struct pagevec *pvec)
{
	return PAGEVEC_SIZE - pvec->nr;
}

static inline unsigned pagevec_add(struct pagevec *pvec, struct page *page)
{
	pvec->pages[pvec->nr++] = page;
	return pagevec_space(pvec);
}

static inline void pagevec_release(struct pagevec *pvec)
{
	if (pagevec_count(pvec))
		__pagevec_release(pvec);
}

static inline void __pagevec_lru_add_anon(struct pagevec *pvec)
{
	__pagevec_lru_add(pvec, LRU_INACTIVE_ANON);
}

static inline void __pagevec_lru_add_active_anon(struct pagevec *pvec)
{
	__pagevec_lru_add(pvec, LRU_ACTIVE_ANON);
}

static inline void __pagevec_lru_add_file(struct pagevec *pvec)
{
	__pagevec_lru_add(pvec, LRU_INACTIVE_FILE);
}

static inline void __pagevec_lru_add_active_file(struct pagevec *pvec)
{
	__pagevec_lru_add(pvec, LRU_ACTIVE_FILE);
}

static inline void pagevec_lru_add_file(struct pagevec *pvec)
{
	if (pagevec_count(pvec))
		__pagevec_lru_add_file(pvec);
}

static inline void pagevec_lru_add_anon(struct pagevec *pvec)
{
	if (pagevec_count(pvec))
		__pagevec_lru_add_anon(pvec);
}

#endif