430 void free_extent_buffer(struct extent_buffer *eb);
431 void free_extent_buffer_stale(struct extent_buffer *eb);
435 int read_extent_buffer_pages(struct extent_buffer *eb, int wait,
437 void wait_on_extent_buffer_writeback(struct extent_buffer *eb);
439 static inline int num_extent_pages(const struct extent_buffer *eb)  in num_extent_pages()  argument
441 	return (round_up(eb->start + eb->len, PAGE_SIZE) >> PAGE_SHIFT) -  in num_extent_pages()
442 	       (eb->start >> PAGE_SHIFT);  in num_extent_pages()
445 static inline void extent_buffer_get(struct extent_buffer *eb)  in extent_buffer_get()  argument
447 	atomic_inc(&eb->refs);  in extent_buffer_get()
450 static inline int extent_buffer_uptodate(struct extent_buffer *eb)  in extent_buffer_uptodate()  argument
452 	return test_bit(EXTENT_BUFFER_UPTODATE, &eb->bflags);  in extent_buffer_uptodate()
455 int memcmp_extent_buffer(const struct extent_buffer *eb, const void *ptrv,
457 void read_extent_buffer(const struct extent_buffer *eb, void *dst,
460 int read_extent_buffer_to_user(const struct extent_buffer *eb,
463 void write_extent_buffer_fsid(struct extent_buffer *eb, const void *src);
464 void write_extent_buffer_chunk_tree_uuid(struct extent_buffer *eb,
466 void write_extent_buffer(struct extent_buffer *eb, const void *src,
477 void memzero_extent_buffer(struct extent_buffer *eb, unsigned long start,
479 int extent_buffer_test_bit(struct extent_buffer *eb, unsigned long start,
481 void extent_buffer_bitmap_set(struct extent_buffer *eb, unsigned long start,
483 void extent_buffer_bitmap_clear(struct extent_buffer *eb, unsigned long start,
485 void clear_extent_buffer_dirty(struct extent_buffer *eb);
486 bool set_extent_buffer_dirty(struct extent_buffer *eb);
487 void set_extent_buffer_uptodate(struct extent_buffer *eb);
488 void clear_extent_buffer_uptodate(struct extent_buffer *eb);
489 int extent_buffer_under_io(struct extent_buffer *eb);
490 int map_private_extent_buffer(const struct extent_buffer *eb,
516 int btrfs_repair_eb_io_failure(struct extent_buffer *eb, int mirror_num);