root/include/linux/mpage.h

INCLUDED FROM

/*
 * include/linux/mpage.h
 *
 * Contains declarations related to preparing and submitting BIOS which contain
 * multiple pagecache pages.
 */

/*
 * (And no, it doesn't do the #ifdef __MPAGE_H thing, and it doesn't do
 * nested includes.  Get it right in the .c file).
 */
#ifdef CONFIG_BLOCK

struct mpage_data {
        struct bio *bio;
        sector_t last_block_in_bio;
        get_block_t *get_block;
        unsigned use_writepage;
};

struct writeback_control;

struct bio *mpage_bio_submit(int rw, struct bio *bio);
int mpage_readpages(struct address_space *mapping, struct list_head *pages,
                                unsigned nr_pages, get_block_t get_block);
int mpage_readpage(struct page *page, get_block_t get_block);
int __mpage_writepage(struct page *page, struct writeback_control *wbc,
                      void *data);
int mpage_writepages(struct address_space *mapping,
                struct writeback_control *wbc, get_block_t get_block);
int mpage_writepage(struct page *page, get_block_t *get_block,
                struct writeback_control *wbc);

#endif