109 struct dio {  struct
116 	dio_iodone_t *end_io;		/* IO completion function */  argument
118 	void *private;			/* copy from map_bh.b_private */
121 	spinlock_t bio_lock;		/* protects BIO fields below */
122 	int page_errors;		/* errno from get_user_pages() */
146 static struct kmem_cache *dio_cache __read_mostly;  argument
159 static inline int dio_refill_pages(struct dio *dio, struct dio_submit *sdio)  in dio_refill_pages()
201 static inline struct page *dio_get_page(struct dio *dio,  in dio_get_page()
227 static ssize_t dio_complete(struct dio *dio, loff_t offset, ssize_t ret,  in dio_complete()
281 	struct dio *dio = container_of(work, struct dio, complete_work);  in dio_aio_complete_work()  local
293 	struct dio *dio = bio->bi_private;  in dio_bio_end_aio()  local
326 	struct dio *dio = bio->bi_private;  in dio_bio_end_io()  local
348 	struct dio *dio = bio->bi_private;  in dio_end_io()  local
358 dio_bio_alloc(struct dio *dio, struct dio_submit *sdio,  in dio_bio_alloc()
388 static inline void dio_bio_submit(struct dio *dio, struct dio_submit *sdio)  in dio_bio_submit()
419 static inline void dio_cleanup(struct dio *dio, struct dio_submit *sdio)  in dio_cleanup()
431 static struct bio *dio_await_one(struct dio *dio)  in dio_await_one()
465 static int dio_bio_complete(struct dio *dio, struct bio *bio)  in dio_bio_complete()
499 static void dio_await_completion(struct dio *dio)  in dio_await_completion()
516 static inline int dio_bio_reap(struct dio *dio, struct dio_submit *sdio)  in dio_bio_reap()
563 static int dio_set_defer_completion(struct dio *dio)  in dio_set_defer_completion()
598 static int get_more_blocks(struct dio *dio, struct dio_submit *sdio,  in get_more_blocks()
656 static inline int dio_new_bio(struct dio *dio, struct dio_submit *sdio,  in dio_new_bio()
713 static inline int dio_send_cur_page(struct dio *dio, struct dio_submit *sdio,  in dio_send_cur_page()
778 submit_page_section(struct dio *dio, struct dio_submit *sdio, struct page *page,  in submit_page_section()
838 static void clean_blockdev_aliases(struct dio *dio, struct buffer_head *map_bh)  in clean_blockdev_aliases()
860 static inline void dio_zero_block(struct dio *dio, struct dio_submit *sdio,  in dio_zero_block()
911 static int do_direct_IO(struct dio *dio, struct dio_submit *sdio,  in do_direct_IO()
1060 static inline int drop_refcount(struct dio *dio)  in drop_refcount()
1119 	struct dio *dio;  in do_blockdev_direct_IO()  local