210 void free_extent_buffer(struct extent_buffer *eb);
211 void free_extent_buffer_stale(struct extent_buffer *eb);
215 int read_extent_buffer_pages(struct extent_buffer *eb, int wait,
217 void wait_on_extent_buffer_writeback(struct extent_buffer *eb);
219 static inline int num_extent_pages(const struct extent_buffer *eb)  in num_extent_pages()  argument
221 	return (round_up(eb->start + eb->len, PAGE_SIZE) >> PAGE_SHIFT) -  in num_extent_pages()
222 	       (eb->start >> PAGE_SHIFT);  in num_extent_pages()
225 static inline int extent_buffer_uptodate(const struct extent_buffer *eb)  in extent_buffer_uptodate()  argument
227 	return test_bit(EXTENT_BUFFER_UPTODATE, &eb->bflags);  in extent_buffer_uptodate()
230 int memcmp_extent_buffer(const struct extent_buffer *eb, const void *ptrv,
232 void read_extent_buffer(const struct extent_buffer *eb, void *dst,
235 int read_extent_buffer_to_user_nofault(const struct extent_buffer *eb,
238 void write_extent_buffer_fsid(const struct extent_buffer *eb, const void *src);
239 void write_extent_buffer_chunk_tree_uuid(const struct extent_buffer *eb,
241 void write_extent_buffer(const struct extent_buffer *eb, const void *src,
255 void memzero_extent_buffer(const struct extent_buffer *eb, unsigned long start,
257 int extent_buffer_test_bit(const struct extent_buffer *eb, unsigned long start,
259 void extent_buffer_bitmap_set(const struct extent_buffer *eb, unsigned long start,
261 void extent_buffer_bitmap_clear(const struct extent_buffer *eb,
264 void clear_extent_buffer_dirty(const struct extent_buffer *eb);
265 bool set_extent_buffer_dirty(struct extent_buffer *eb);
266 void set_extent_buffer_uptodate(struct extent_buffer *eb);
267 void clear_extent_buffer_uptodate(struct extent_buffer *eb);
268 int extent_buffer_under_io(const struct extent_buffer *eb);
287 int btrfs_repair_eb_io_failure(const struct extent_buffer *eb, int mirror_num);