77 #define BITMAP_FIRST_BYTE_MASK(start) \  argument
78 	((BYTE_MASK << ((start) & (BITS_PER_BYTE - 1))) & BYTE_MASK)
102 				    struct page *page, u64 start, u64 end,
110 			     u64 start, u64 end, int *page_started,
114 	int (*writepage_start_hook)(struct page *page, u64 start, u64 end);
115 	void (*writepage_end_io_hook)(struct page *page, u64 start, u64 end,
128 				      u64 start, u64 end);
141 	u64 start;  member
160 	u64 start;  member
261 					  u64 start, u64 len,
267 int lock_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
270 static inline int lock_extent(struct extent_io_tree *tree, u64 start, u64 end)  in lock_extent()  argument
272 	return lock_extent_bits(tree, start, end, NULL);  in lock_extent()
275 int try_lock_extent(struct extent_io_tree *tree, u64 start, u64 end);
282 		     u64 *start, u64 search_end,
286 int test_range_bit(struct extent_io_tree *tree, u64 start, u64 end,
289 int clear_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
291 int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
294 int __clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
299 static inline int unlock_extent(struct extent_io_tree *tree, u64 start, u64 end)  in unlock_extent()  argument
301 	return clear_extent_bit(tree, start, end, EXTENT_LOCKED, 1, 0, NULL);  in unlock_extent()
304 static inline int unlock_extent_cached(struct extent_io_tree *tree, u64 start,  in unlock_extent_cached()  argument
307 	return __clear_extent_bit(tree, start, end, EXTENT_LOCKED, 1, 0, cached,  in unlock_extent_cached()
312 		u64 start, u64 end, struct extent_state **cached)  in unlock_extent_cached_atomic()  argument
314 	return __clear_extent_bit(tree, start, end, EXTENT_LOCKED, 1, 0, cached,  in unlock_extent_cached_atomic()
318 static inline int clear_extent_bits(struct extent_io_tree *tree, u64 start,  in clear_extent_bits()  argument
326 	return clear_extent_bit(tree, start, end, bits, wake, 0, NULL);  in clear_extent_bits()
329 int set_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
331 int set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
335 static inline int set_extent_bits(struct extent_io_tree *tree, u64 start,  in set_extent_bits()  argument
338 	return set_extent_bit(tree, start, end, bits, NULL, NULL, GFP_NOFS);  in set_extent_bits()
341 static inline int clear_extent_uptodate(struct extent_io_tree *tree, u64 start,  in clear_extent_uptodate()  argument
344 	return __clear_extent_bit(tree, start, end, EXTENT_UPTODATE, 0, 0,  in clear_extent_uptodate()
348 static inline int set_extent_dirty(struct extent_io_tree *tree, u64 start,  in set_extent_dirty()  argument
351 	return set_extent_bit(tree, start, end, EXTENT_DIRTY, NULL,  in set_extent_dirty()
355 static inline int clear_extent_dirty(struct extent_io_tree *tree, u64 start,  in clear_extent_dirty()  argument
358 	return clear_extent_bit(tree, start, end,  in clear_extent_dirty()
363 int convert_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
367 static inline int set_extent_delalloc(struct extent_io_tree *tree, u64 start,  in set_extent_delalloc()  argument
371 	return set_extent_bit(tree, start, end,  in set_extent_delalloc()
376 static inline int set_extent_defrag(struct extent_io_tree *tree, u64 start,  in set_extent_defrag()  argument
379 	return set_extent_bit(tree, start, end,  in set_extent_defrag()
384 static inline int set_extent_new(struct extent_io_tree *tree, u64 start,  in set_extent_new()  argument
387 	return set_extent_bit(tree, start, end, EXTENT_NEW, NULL, NULL,  in set_extent_new()
391 static inline int set_extent_uptodate(struct extent_io_tree *tree, u64 start,  in set_extent_uptodate()  argument
394 	return set_extent_bit(tree, start, end, EXTENT_UPTODATE, NULL,  in set_extent_uptodate()
398 int find_first_extent_bit(struct extent_io_tree *tree, u64 start,
404 int extent_write_locked_range(struct inode *inode, u64 start, u64 end,
413 		__u64 start, __u64 len);
417 					  u64 start);
419 						  u64 start, unsigned long len);
421 						u64 start);
424 					 u64 start);
437 	return (round_up(eb->start + eb->len, PAGE_SIZE) >> PAGE_SHIFT) -  in num_extent_pages()
438 	       (eb->start >> PAGE_SHIFT);  in num_extent_pages()
452 			 unsigned long start, unsigned long len);
454 			unsigned long start,
457 			       void __user *dst, unsigned long start,
463 			 unsigned long start, unsigned long len);
473 void memzero_extent_buffer(struct extent_buffer *eb, unsigned long start,
475 int extent_buffer_test_bit(struct extent_buffer *eb, unsigned long start,
477 void extent_buffer_bitmap_set(struct extent_buffer *eb, unsigned long start,
479 void extent_buffer_bitmap_clear(struct extent_buffer *eb, unsigned long start,
490 void extent_range_clear_dirty_for_io(struct inode *inode, u64 start, u64 end);
491 void extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end);
492 void extent_clear_unlock_delalloc(struct inode *inode, u64 start, u64 end,
504 int repair_io_failure(struct btrfs_fs_info *fs_info, u64 ino, u64 start,
509 		     struct extent_io_tree *io_tree, u64 start,
511 void end_extent_writepage(struct page *page, int err, u64 start, u64 end);
525 	u64 start;  member
535 void btrfs_free_io_failure_record(struct btrfs_inode *inode, u64 start,
537 int btrfs_get_io_failure_record(struct inode *inode, u64 start, u64 end,
551 				      struct page *locked_page, u64 *start,
555 					       u64 start);