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C/C++ Source or Header  |  2008-12-24  |  991 b   |  35 lines
  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
  35.