69 			     u64 start, u64 end, int *page_started,
71 	int (*writepage_start_hook)(struct page *page, u64 start, u64 end);
72 	int (*writepage_io_hook)(struct page *page, u64 start, u64 end);
79 				    struct page *page, u64 start, u64 end,
81 	int (*writepage_end_io_hook)(struct page *page, u64 start, u64 end,
104 	u64 start;  member
124 	u64 start;  member
180 					  u64 start, u64 len,
189 int lock_extent(struct extent_io_tree *tree, u64 start, u64 end);
190 int lock_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
192 int unlock_extent(struct extent_io_tree *tree, u64 start, u64 end);
193 int unlock_extent_cached(struct extent_io_tree *tree, u64 start, u64 end,
195 int try_lock_extent(struct extent_io_tree *tree, u64 start, u64 end);
204 		     u64 *start, u64 search_end,
208 int test_range_bit(struct extent_io_tree *tree, u64 start, u64 end,
211 int clear_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
213 int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
216 int set_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
218 int set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
221 int set_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end,
223 int clear_extent_uptodate(struct extent_io_tree *tree, u64 start, u64 end,
225 int set_extent_new(struct extent_io_tree *tree, u64 start, u64 end,
227 int set_extent_dirty(struct extent_io_tree *tree, u64 start, u64 end,
229 int clear_extent_dirty(struct extent_io_tree *tree, u64 start, u64 end,
231 int convert_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
234 int set_extent_delalloc(struct extent_io_tree *tree, u64 start, u64 end,
236 int set_extent_defrag(struct extent_io_tree *tree, u64 start, u64 end,
238 int find_first_extent_bit(struct extent_io_tree *tree, u64 start,
247 			      u64 start, u64 end, get_extent_t *get_extent,
260 		__u64 start, __u64 len, get_extent_t *get_extent);
261 int get_state_private(struct extent_io_tree *tree, u64 start, u64 *private);
265 					  u64 start);
267 		u64 start);
270 					 u64 start);
277 			     struct extent_buffer *eb, u64 start, int wait,
281 static inline unsigned long num_extent_pages(u64 start, u64 len)  in num_extent_pages()  argument
283 	return ((start + len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT) -  in num_extent_pages()
284 		(start >> PAGE_CACHE_SHIFT);  in num_extent_pages()
293 			  unsigned long start,
296 			unsigned long start,
299 			       unsigned long start,
302 			 unsigned long start, unsigned long len);
311 			  unsigned long start, unsigned long len);
322 int extent_range_clear_dirty_for_io(struct inode *inode, u64 start, u64 end);
323 int extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end);
324 int extent_clear_unlock_delalloc(struct inode *inode, u64 start, u64 end,
336 int repair_io_failure(struct inode *inode, u64 start, u64 length, u64 logical,
339 int clean_io_failure(struct inode *inode, u64 start, struct page *page,
341 int end_extent_writepage(struct page *page, int err, u64 start, u64 end);
355 	u64 start;  member
364 void btrfs_free_io_failure_record(struct inode *inode, u64 start, u64 end);
365 int btrfs_get_io_failure_record(struct inode *inode, u64 start, u64 end,
377 				      struct page *locked_page, u64 *start,
381 					       u64 start);