182 void btrfs_set_buffer_lockdep_class(u64 objectid, struct extent_buffer *eb,  in btrfs_set_buffer_lockdep_class()  argument
194 	lockdep_set_class_and_name(&eb->lock,  in btrfs_set_buffer_lockdep_class()
302 				 struct extent_buffer *eb, u64 parent_transid,  in verify_parent_transid()  argument
309 	if (!parent_transid || btrfs_header_generation(eb) == parent_transid)  in verify_parent_transid()
316 		btrfs_tree_read_lock(eb);  in verify_parent_transid()
317 		btrfs_set_lock_blocking_read(eb);  in verify_parent_transid()
320 	lock_extent_bits(io_tree, eb->start, eb->start + eb->len - 1,  in verify_parent_transid()
322 	if (extent_buffer_uptodate(eb) &&  in verify_parent_transid()
323 	    btrfs_header_generation(eb) == parent_transid) {  in verify_parent_transid()
327 	btrfs_err_rl(eb->fs_info,  in verify_parent_transid()
329 			eb->start,  in verify_parent_transid()
330 			parent_transid, btrfs_header_generation(eb));  in verify_parent_transid()
341 	if (!extent_buffer_under_io(eb))  in verify_parent_transid()
342 		clear_extent_buffer_uptodate(eb);  in verify_parent_transid()
344 	unlock_extent_cached(io_tree, eb->start, eb->start + eb->len - 1,  in verify_parent_transid()
347 		btrfs_tree_read_unlock_blocking(eb);  in verify_parent_transid()
391 int btrfs_verify_level_key(struct extent_buffer *eb, int level,  in btrfs_verify_level_key()  argument
394 	struct btrfs_fs_info *fs_info = eb->fs_info;  in btrfs_verify_level_key()
399 	found_level = btrfs_header_level(eb);  in btrfs_verify_level_key()
405 			  eb->start, level, found_level);  in btrfs_verify_level_key()
418 	if (btrfs_header_generation(eb) > fs_info->last_trans_committed)  in btrfs_verify_level_key()
422 	if (btrfs_header_nritems(eb) == 0) {  in btrfs_verify_level_key()
425 			  eb->start);  in btrfs_verify_level_key()
431 		btrfs_node_key_to_cpu(eb, &found_key, 0);  in btrfs_verify_level_key()
433 		btrfs_item_key_to_cpu(eb, &found_key, 0);  in btrfs_verify_level_key()
441 			  eb->start, parent_transid, first_key->objectid,  in btrfs_verify_level_key()
457 static int btree_read_extent_buffer_pages(struct extent_buffer *eb,  in btree_read_extent_buffer_pages()  argument
461 	struct btrfs_fs_info *fs_info = eb->fs_info;  in btree_read_extent_buffer_pages()
471 		clear_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);  in btree_read_extent_buffer_pages()
472 		ret = read_extent_buffer_pages(eb, WAIT_COMPLETE, mirror_num);  in btree_read_extent_buffer_pages()
474 			if (verify_parent_transid(io_tree, eb,  in btree_read_extent_buffer_pages()
477 			else if (btrfs_verify_level_key(eb, level,  in btree_read_extent_buffer_pages()
485 					      eb->start, eb->len);  in btree_read_extent_buffer_pages()
491 			failed_mirror = eb->read_mirror;  in btree_read_extent_buffer_pages()
503 		btrfs_repair_eb_io_failure(eb, failed_mirror);  in btree_read_extent_buffer_pages()
519 	struct extent_buffer *eb;  in csum_dirty_buffer()  local
522 	eb = (struct extent_buffer *)page->private;  in csum_dirty_buffer()
523 	if (page != eb->pages[0])  in csum_dirty_buffer()
526 	found_start = btrfs_header_bytenr(eb);  in csum_dirty_buffer()
536 	ASSERT(memcmp_extent_buffer(eb, fs_info->fs_devices->metadata_uuid,  in csum_dirty_buffer()
539 	if (csum_tree_block(eb, result))  in csum_dirty_buffer()
542 	if (btrfs_header_level(eb))  in csum_dirty_buffer()
543 		ret = btrfs_check_node(eb);  in csum_dirty_buffer()
545 		ret = btrfs_check_leaf_full(eb);  in csum_dirty_buffer()
550 			  eb->start);  in csum_dirty_buffer()
553 	write_extent_buffer(eb, result, 0, csum_size);  in csum_dirty_buffer()
558 static int check_tree_block_fsid(struct extent_buffer *eb)  in check_tree_block_fsid()  argument
560 	struct btrfs_fs_info *fs_info = eb->fs_info;  in check_tree_block_fsid()
565 	read_extent_buffer(eb, fsid, btrfs_header_fsid(), BTRFS_FSID_SIZE);  in check_tree_block_fsid()
595 	struct extent_buffer *eb;  in btree_readpage_end_io_hook()  local
606 	eb = (struct extent_buffer *)page->private;  in btree_readpage_end_io_hook()
611 	extent_buffer_get(eb);  in btree_readpage_end_io_hook()
613 	reads_done = atomic_dec_and_test(&eb->io_pages);  in btree_readpage_end_io_hook()
617 	eb->read_mirror = mirror;  in btree_readpage_end_io_hook()
618 	if (test_bit(EXTENT_BUFFER_READ_ERR, &eb->bflags)) {  in btree_readpage_end_io_hook()
623 	found_start = btrfs_header_bytenr(eb);  in btree_readpage_end_io_hook()
624 	if (found_start != eb->start) {  in btree_readpage_end_io_hook()
626 			     eb->start, found_start);  in btree_readpage_end_io_hook()
630 	if (check_tree_block_fsid(eb)) {  in btree_readpage_end_io_hook()
632 			     eb->start);  in btree_readpage_end_io_hook()
636 	found_level = btrfs_header_level(eb);  in btree_readpage_end_io_hook()
639 			  (int)btrfs_header_level(eb), eb->start);  in btree_readpage_end_io_hook()
644 	btrfs_set_buffer_lockdep_class(btrfs_header_owner(eb),  in btree_readpage_end_io_hook()
645 				       eb, found_level);  in btree_readpage_end_io_hook()
647 	ret = csum_tree_block(eb, result);  in btree_readpage_end_io_hook()
651 	if (memcmp_extent_buffer(eb, result, 0, csum_size)) {  in btree_readpage_end_io_hook()
657 		read_extent_buffer(eb, &val, 0, csum_size);  in btree_readpage_end_io_hook()
660 			      fs_info->sb->s_id, eb->start,  in btree_readpage_end_io_hook()
661 			      val, found, btrfs_header_level(eb));  in btree_readpage_end_io_hook()
671 	if (found_level == 0 && btrfs_check_leaf_full(eb)) {  in btree_readpage_end_io_hook()
672 		set_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);  in btree_readpage_end_io_hook()
676 	if (found_level > 0 && btrfs_check_node(eb))  in btree_readpage_end_io_hook()
680 		set_extent_buffer_uptodate(eb);  in btree_readpage_end_io_hook()
684 			  eb->start);  in btree_readpage_end_io_hook()
687 	    test_and_clear_bit(EXTENT_BUFFER_READAHEAD, &eb->bflags))  in btree_readpage_end_io_hook()
688 		btree_readahead_hook(eb, ret);  in btree_readpage_end_io_hook()
696 		atomic_inc(&eb->io_pages);  in btree_readpage_end_io_hook()
697 		clear_extent_buffer_uptodate(eb);  in btree_readpage_end_io_hook()
699 	free_extent_buffer(eb);  in btree_readpage_end_io_hook()
1012 	struct extent_buffer *eb;  in btree_set_page_dirty()  local
1015 	eb = (struct extent_buffer *)page->private;  in btree_set_page_dirty()
1016 	BUG_ON(!eb);  in btree_set_page_dirty()
1017 	BUG_ON(!test_bit(EXTENT_BUFFER_DIRTY, &eb->bflags));  in btree_set_page_dirty()
1018 	BUG_ON(!atomic_read(&eb->refs));  in btree_set_page_dirty()
1019 	btrfs_assert_tree_locked(eb);  in btree_set_page_dirty()
4367 	struct extent_buffer *eb;  in btrfs_destroy_marked_extents()  local
4379 			eb = find_extent_buffer(fs_info, start);  in btrfs_destroy_marked_extents()
4381 			if (!eb)  in btrfs_destroy_marked_extents()
4383 			wait_on_extent_buffer_writeback(eb);  in btrfs_destroy_marked_extents()
4386 					       &eb->bflags))  in btrfs_destroy_marked_extents()
4387 				clear_extent_buffer_dirty(eb);  in btrfs_destroy_marked_extents()
4388 			free_extent_buffer_stale(eb);  in btrfs_destroy_marked_extents()