/* Public domain. */

#ifndef _LINUX_PAGEVEC_H
#define _LINUX_PAGEVEC_H

#include <sys/types.h>
#include <sys/systm.h>
#include <sys/errno.h>

#define PAGEVEC_SIZE 15

struct folio_batch {
};

struct pagevec {
        uint8_t nr;
        struct vm_page *pages[PAGEVEC_SIZE];
};

void __pagevec_release(struct pagevec *);

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

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

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

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

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

#endif