71 			     u64 start, u64 end, int *page_started,
73 	int (*writepage_start_hook)(struct page *page, u64 start, u64 end);
74 	int (*writepage_io_hook)(struct page *page, u64 start, u64 end);
81 				    struct page *page, u64 start, u64 end,
83 	int (*writepage_end_io_hook)(struct page *page, u64 start, u64 end,
106 	u64 start;  member
126 	u64 start;  member
193 					  u64 start, u64 len,
202 int lock_extent(struct extent_io_tree *tree, u64 start, u64 end);
203 int lock_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
205 int unlock_extent(struct extent_io_tree *tree, u64 start, u64 end);
206 int unlock_extent_cached(struct extent_io_tree *tree, u64 start, u64 end,
208 int try_lock_extent(struct extent_io_tree *tree, u64 start, u64 end);
217 		     u64 *start, u64 search_end,
221 int test_range_bit(struct extent_io_tree *tree, u64 start, u64 end,
224 int clear_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
226 int clear_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
229 int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
232 int set_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
234 int set_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
237 int set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
240 int set_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end,
242 int clear_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end,
244 int set_extent_new(struct extent_io_tree *tree, u64 start, u64 end,
246 int set_extent_dirty(struct extent_io_tree *tree, u64 start, u64 end,
248 int clear_extent_dirty(struct extent_io_tree *tree, u64 start, u64 end,
250 int convert_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
253 int set_extent_delalloc(struct extent_io_tree *tree, u64 start, u64 end,
255 int set_extent_defrag(struct extent_io_tree *tree, u64 start, u64 end,
257 int find_first_extent_bit(struct extent_io_tree *tree, u64 start,
266 			      u64 start, u64 end, get_extent_t *get_extent,
279 		__u64 start, __u64 len, get_extent_t *get_extent);
280 int get_state_private(struct extent_io_tree *tree, u64 start, u64 *private);
284 					  u64 start);
286 		u64 start);
289 					 u64 start);
296 			     struct extent_buffer *eb, u64 start, int wait,
300 static inline unsigned long num_extent_pages(u64 start, u64 len)  in num_extent_pages()  argument
302 	return ((start + len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT) -  in num_extent_pages()
303 		(start >> PAGE_CACHE_SHIFT);  in num_extent_pages()
312 			  unsigned long start,
315 			unsigned long start,
318 			       unsigned long start,
321 			 unsigned long start, unsigned long len);
330 			  unsigned long start, unsigned long len);
341 int extent_range_clear_dirty_for_io(struct inode *inode, u64 start, u64 end);
342 int extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end);
343 int extent_clear_unlock_delalloc(struct inode *inode, u64 start, u64 end,
355 int repair_io_failure(struct inode *inode, u64 start, u64 length, u64 logical,
358 int clean_io_failure(struct inode *inode, u64 start, struct page *page,
360 int end_extent_writepage(struct page *page, int err, u64 start, u64 end);
374 	u64 start;  member
383 void btrfs_free_io_failure_record(struct inode *inode, u64 start, u64 end);
384 int btrfs_get_io_failure_record(struct inode *inode, u64 start, u64 end,
396 				      struct page *locked_page, u64 *start,
400 					       u64 start);