include/linux/mpage.h

   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  */
  12 #ifdef CONFIG_BLOCK
  13
  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
  21 struct writeback_control;
  22
  23 struct bio *mpage_bio_submit(int rw, struct bio *bio);
  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);
  27 int __mpage_writepage(struct page *page, struct writeback_control *wbc,
  28                       void *data);
  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);
  33
  34 #endif