[deliverable/linux.git] / include / linux / mpage.h

/*
 * 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
Commit	Line	Data
1da177e4 LT	1	/*
	2	* include/linux/mpage.h
	3	*
	4	* Contains declarations related to preparing and submitting BIOS which contain
	5	* multiple pagecache pages.
	6	*/
	7
	8	/*
	9	* (And no, it doesn't do the #ifdef __MPAGE_H thing, and it doesn't do
	10	* nested includes. Get it right in the .c file).
	11	*/
9361401e	12	#ifdef CONFIG_BLOCK
1da177e4	13
29a814d2 AT	14	struct mpage_data {
	15	struct bio *bio;
	16	sector_t last_block_in_bio;
	17	get_block_t *get_block;
	18	unsigned use_writepage;
	19	};
	20
1da177e4	21	struct writeback_control;
1da177e4	22
29a814d2	23	struct bio mpage_bio_submit(int rw, struct bio bio);
1da177e4 LT	24	int mpage_readpages(struct address_space mapping, struct list_head pages,
	25	unsigned nr_pages, get_block_t get_block);
	26	int mpage_readpage(struct page *page, get_block_t get_block);
29a814d2 AT	27	int __mpage_writepage(struct page page, struct writeback_control wbc,
29a814d2 AT	28	void *data);
1da177e4 LT	29	int mpage_writepages(struct address_space *mapping,
	30	struct writeback_control *wbc, get_block_t get_block);
	31	int mpage_writepage(struct page page, get_block_t get_block,
	32	struct writeback_control *wbc);
9361401e DH	33
9361401e DH	34	#endif