188 void btrfs_set_buffer_lockdep_class(u64 objectid, struct extent_buffer *eb,  in btrfs_set_buffer_lockdep_class()  argument
200 	lockdep_set_class_and_name(&eb->lock,  in btrfs_set_buffer_lockdep_class()
239 				 struct extent_buffer *eb, u64 parent_transid,  in verify_parent_transid()  argument
245 	if (!parent_transid || btrfs_header_generation(eb) == parent_transid)  in verify_parent_transid()
251 	lock_extent_bits(io_tree, eb->start, eb->start + eb->len - 1,  in verify_parent_transid()
253 	if (extent_buffer_uptodate(eb) &&  in verify_parent_transid()
254 	    btrfs_header_generation(eb) == parent_transid) {  in verify_parent_transid()
258 	btrfs_err_rl(eb->fs_info,  in verify_parent_transid()
260 			eb->start,  in verify_parent_transid()
261 			parent_transid, btrfs_header_generation(eb));  in verify_parent_transid()
263 	clear_extent_buffer_uptodate(eb);  in verify_parent_transid()
265 	unlock_extent_cached(io_tree, eb->start, eb->start + eb->len - 1,  in verify_parent_transid()
311 int btrfs_verify_level_key(struct extent_buffer *eb, int level,  in btrfs_verify_level_key()  argument
314 	struct btrfs_fs_info *fs_info = eb->fs_info;  in btrfs_verify_level_key()
319 	found_level = btrfs_header_level(eb);  in btrfs_verify_level_key()
325 			  eb->start, level, found_level);  in btrfs_verify_level_key()
338 	if (btrfs_header_generation(eb) > fs_info->last_trans_committed)  in btrfs_verify_level_key()
342 	if (btrfs_header_nritems(eb) == 0) {  in btrfs_verify_level_key()
345 			  eb->start);  in btrfs_verify_level_key()
351 		btrfs_node_key_to_cpu(eb, &found_key, 0);  in btrfs_verify_level_key()
353 		btrfs_item_key_to_cpu(eb, &found_key, 0);  in btrfs_verify_level_key()
361 			  eb->start, parent_transid, first_key->objectid,  in btrfs_verify_level_key()
377 static int btree_read_extent_buffer_pages(struct extent_buffer *eb,  in btree_read_extent_buffer_pages()  argument
381 	struct btrfs_fs_info *fs_info = eb->fs_info;  in btree_read_extent_buffer_pages()
391 		clear_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);  in btree_read_extent_buffer_pages()
392 		ret = read_extent_buffer_pages(eb, WAIT_COMPLETE, mirror_num);  in btree_read_extent_buffer_pages()
394 			if (verify_parent_transid(io_tree, eb,  in btree_read_extent_buffer_pages()
397 			else if (btrfs_verify_level_key(eb, level,  in btree_read_extent_buffer_pages()
405 					      eb->start, eb->len);  in btree_read_extent_buffer_pages()
411 			failed_mirror = eb->read_mirror;  in btree_read_extent_buffer_pages()
423 		btrfs_repair_eb_io_failure(eb, failed_mirror);  in btree_read_extent_buffer_pages()
428 static int csum_one_extent_buffer(struct extent_buffer *eb)  in csum_one_extent_buffer()  argument
430 	struct btrfs_fs_info *fs_info = eb->fs_info;  in csum_one_extent_buffer()
434 	ASSERT(memcmp_extent_buffer(eb, fs_info->fs_devices->metadata_uuid,  in csum_one_extent_buffer()
437 	csum_tree_block(eb, result);  in csum_one_extent_buffer()
439 	if (btrfs_header_level(eb))  in csum_one_extent_buffer()
440 		ret = btrfs_check_node(eb);  in csum_one_extent_buffer()
442 		ret = btrfs_check_leaf_full(eb);  in csum_one_extent_buffer()
445 		btrfs_print_tree(eb, 0);  in csum_one_extent_buffer()
448 			eb->start);  in csum_one_extent_buffer()
452 	write_extent_buffer(eb, result, 0, fs_info->csum_size);  in csum_one_extent_buffer()
468 		struct extent_buffer *eb;  in csum_dirty_subpage_buffers()  local
471 		eb = find_extent_buffer(fs_info, cur);  in csum_dirty_subpage_buffers()
476 		if (WARN_ON(!eb))  in csum_dirty_subpage_buffers()
479 		if (WARN_ON(cur != btrfs_header_bytenr(eb))) {  in csum_dirty_subpage_buffers()
480 			free_extent_buffer(eb);  in csum_dirty_subpage_buffers()
484 			free_extent_buffer(eb);  in csum_dirty_subpage_buffers()
488 		ret = csum_one_extent_buffer(eb);  in csum_dirty_subpage_buffers()
489 		free_extent_buffer(eb);  in csum_dirty_subpage_buffers()
506 	struct extent_buffer *eb;  in csum_dirty_buffer()  local
511 	eb = (struct extent_buffer *)page->private;  in csum_dirty_buffer()
512 	if (page != eb->pages[0])  in csum_dirty_buffer()
515 	found_start = btrfs_header_bytenr(eb);  in csum_dirty_buffer()
517 	if (test_bit(EXTENT_BUFFER_NO_CHECK, &eb->bflags)) {  in csum_dirty_buffer()
531 	return csum_one_extent_buffer(eb);  in csum_dirty_buffer()
534 static int check_tree_block_fsid(struct extent_buffer *eb)  in check_tree_block_fsid()  argument
536 	struct btrfs_fs_info *fs_info = eb->fs_info;  in check_tree_block_fsid()
541 	read_extent_buffer(eb, fsid, offsetof(struct btrfs_header, fsid),  in check_tree_block_fsid()
564 static int validate_extent_buffer(struct extent_buffer *eb)  in validate_extent_buffer()  argument
566 	struct btrfs_fs_info *fs_info = eb->fs_info;  in validate_extent_buffer()
574 	found_start = btrfs_header_bytenr(eb);  in validate_extent_buffer()
575 	if (found_start != eb->start) {  in validate_extent_buffer()
577 			     eb->start, found_start);  in validate_extent_buffer()
581 	if (check_tree_block_fsid(eb)) {  in validate_extent_buffer()
583 			     eb->start);  in validate_extent_buffer()
587 	found_level = btrfs_header_level(eb);  in validate_extent_buffer()
590 			  (int)btrfs_header_level(eb), eb->start);  in validate_extent_buffer()
595 	csum_tree_block(eb, result);  in validate_extent_buffer()
596 	header_csum = page_address(eb->pages[0]) +  in validate_extent_buffer()
597 		get_eb_offset_in_page(eb, offsetof(struct btrfs_header, csum));  in validate_extent_buffer()
602 			      eb->start,  in validate_extent_buffer()
605 			      btrfs_header_level(eb));  in validate_extent_buffer()
615 	if (found_level == 0 && btrfs_check_leaf_full(eb)) {  in validate_extent_buffer()
616 		set_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);  in validate_extent_buffer()
620 	if (found_level > 0 && btrfs_check_node(eb))  in validate_extent_buffer()
624 		set_extent_buffer_uptodate(eb);  in validate_extent_buffer()
628 			  eb->start);  in validate_extent_buffer()
637 	struct extent_buffer *eb;  in validate_subpage_buffer()  local
648 	eb = find_extent_buffer(fs_info, start);  in validate_subpage_buffer()
653 	ASSERT(eb);  in validate_subpage_buffer()
655 	reads_done = atomic_dec_and_test(&eb->io_pages);  in validate_subpage_buffer()
659 	eb->read_mirror = mirror;  in validate_subpage_buffer()
660 	if (test_bit(EXTENT_BUFFER_READ_ERR, &eb->bflags)) {  in validate_subpage_buffer()
664 	ret = validate_extent_buffer(eb);  in validate_subpage_buffer()
668 	if (test_and_clear_bit(EXTENT_BUFFER_READAHEAD, &eb->bflags))  in validate_subpage_buffer()
669 		btree_readahead_hook(eb, ret);  in validate_subpage_buffer()
671 	set_extent_buffer_uptodate(eb);  in validate_subpage_buffer()
673 	free_extent_buffer(eb);  in validate_subpage_buffer()
680 	atomic_inc(&eb->io_pages);  in validate_subpage_buffer()
681 	clear_extent_buffer_uptodate(eb);  in validate_subpage_buffer()
682 	free_extent_buffer(eb);  in validate_subpage_buffer()
690 	struct extent_buffer *eb;  in btrfs_validate_metadata_buffer()  local
699 	eb = (struct extent_buffer *)page->private;  in btrfs_validate_metadata_buffer()
705 	atomic_inc(&eb->refs);  in btrfs_validate_metadata_buffer()
707 	reads_done = atomic_dec_and_test(&eb->io_pages);  in btrfs_validate_metadata_buffer()
711 	eb->read_mirror = mirror;  in btrfs_validate_metadata_buffer()
712 	if (test_bit(EXTENT_BUFFER_READ_ERR, &eb->bflags)) {  in btrfs_validate_metadata_buffer()
716 	ret = validate_extent_buffer(eb);  in btrfs_validate_metadata_buffer()
719 	    test_and_clear_bit(EXTENT_BUFFER_READAHEAD, &eb->bflags))  in btrfs_validate_metadata_buffer()
720 		btree_readahead_hook(eb, ret);  in btrfs_validate_metadata_buffer()
728 		atomic_inc(&eb->io_pages);  in btrfs_validate_metadata_buffer()
729 		clear_extent_buffer_uptodate(eb);  in btrfs_validate_metadata_buffer()
731 	free_extent_buffer(eb);  in btrfs_validate_metadata_buffer()
1029 	struct extent_buffer *eb;  in btree_set_page_dirty()  local
1035 		eb = (struct extent_buffer *)page->private;  in btree_set_page_dirty()
1036 		BUG_ON(!eb);  in btree_set_page_dirty()
1037 		BUG_ON(!test_bit(EXTENT_BUFFER_DIRTY, &eb->bflags));  in btree_set_page_dirty()
1038 		BUG_ON(!atomic_read(&eb->refs));  in btree_set_page_dirty()
1039 		btrfs_assert_tree_locked(eb);  in btree_set_page_dirty()
1060 		eb = find_extent_buffer(fs_info, cur);  in btree_set_page_dirty()
1061 		ASSERT(eb);  in btree_set_page_dirty()
1062 		ASSERT(test_bit(EXTENT_BUFFER_DIRTY, &eb->bflags));  in btree_set_page_dirty()
1063 		ASSERT(atomic_read(&eb->refs));  in btree_set_page_dirty()
1064 		btrfs_assert_tree_locked(eb);  in btree_set_page_dirty()
1065 		free_extent_buffer(eb);  in btree_set_page_dirty()
4766 	struct extent_buffer *eb;  in btrfs_destroy_marked_extents()  local
4778 			eb = find_extent_buffer(fs_info, start);  in btrfs_destroy_marked_extents()
4780 			if (!eb)  in btrfs_destroy_marked_extents()
4782 			wait_on_extent_buffer_writeback(eb);  in btrfs_destroy_marked_extents()
4785 					       &eb->bflags))  in btrfs_destroy_marked_extents()
4786 				clear_extent_buffer_dirty(eb);  in btrfs_destroy_marked_extents()
4787 			free_extent_buffer_stale(eb);  in btrfs_destroy_marked_extents()