196 void btrfs_set_buffer_lockdep_class(u64 objectid, struct extent_buffer *eb,  in btrfs_set_buffer_lockdep_class()  argument
208 	lockdep_set_class_and_name(&eb->lock,  in btrfs_set_buffer_lockdep_class()
347 				 struct extent_buffer *eb, u64 parent_transid,  in verify_parent_transid()  argument
354 	if (!parent_transid || btrfs_header_generation(eb) == parent_transid)  in verify_parent_transid()
361 		btrfs_tree_read_lock(eb);  in verify_parent_transid()
362 		btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);  in verify_parent_transid()
365 	lock_extent_bits(io_tree, eb->start, eb->start + eb->len - 1,  in verify_parent_transid()
367 	if (extent_buffer_uptodate(eb) &&  in verify_parent_transid()
368 	    btrfs_header_generation(eb) == parent_transid) {  in verify_parent_transid()
372 	btrfs_err_rl(eb->fs_info,  in verify_parent_transid()
374 			eb->start,  in verify_parent_transid()
375 			parent_transid, btrfs_header_generation(eb));  in verify_parent_transid()
386 	if (!extent_buffer_under_io(eb))  in verify_parent_transid()
387 		clear_extent_buffer_uptodate(eb);  in verify_parent_transid()
389 	unlock_extent_cached(io_tree, eb->start, eb->start + eb->len - 1,  in verify_parent_transid()
392 		btrfs_tree_read_unlock_blocking(eb);  in verify_parent_transid()
439 					  struct extent_buffer *eb,  in btree_read_extent_buffer_pages()  argument
451 		clear_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);  in btree_read_extent_buffer_pages()
452 		ret = read_extent_buffer_pages(io_tree, eb, start,  in btree_read_extent_buffer_pages()
456 			if (!verify_parent_transid(io_tree, eb,  in btree_read_extent_buffer_pages()
464 					      eb->start, eb->len);  in btree_read_extent_buffer_pages()
470 			failed_mirror = eb->read_mirror;  in btree_read_extent_buffer_pages()
482 		repair_eb_io_failure(root, eb, failed_mirror);  in btree_read_extent_buffer_pages()
496 	struct extent_buffer *eb;  in csum_dirty_buffer()  local
498 	eb = (struct extent_buffer *)page->private;  in csum_dirty_buffer()
499 	if (page != eb->pages[0])  in csum_dirty_buffer()
501 	found_start = btrfs_header_bytenr(eb);  in csum_dirty_buffer()
504 	csum_tree_block(fs_info, eb, 0);  in csum_dirty_buffer()
509 				 struct extent_buffer *eb)  in check_tree_block_fsid()  argument
515 	read_extent_buffer(eb, fsid, btrfs_header_fsid(), BTRFS_FSID_SIZE);  in check_tree_block_fsid()
532 	struct extent_buffer *eb;  in btree_readpage_end_io_hook()  local
540 	eb = (struct extent_buffer *)page->private;  in btree_readpage_end_io_hook()
545 	extent_buffer_get(eb);  in btree_readpage_end_io_hook()
547 	reads_done = atomic_dec_and_test(&eb->io_pages);  in btree_readpage_end_io_hook()
551 	eb->read_mirror = mirror;  in btree_readpage_end_io_hook()
552 	if (test_bit(EXTENT_BUFFER_READ_ERR, &eb->bflags)) {  in btree_readpage_end_io_hook()
557 	found_start = btrfs_header_bytenr(eb);  in btree_readpage_end_io_hook()
558 	if (found_start != eb->start) {  in btree_readpage_end_io_hook()
559 		btrfs_err_rl(eb->fs_info, "bad tree block start %llu %llu",  in btree_readpage_end_io_hook()
560 			       found_start, eb->start);  in btree_readpage_end_io_hook()
564 	if (check_tree_block_fsid(root->fs_info, eb)) {  in btree_readpage_end_io_hook()
565 		btrfs_err_rl(eb->fs_info, "bad fsid on block %llu",  in btree_readpage_end_io_hook()
566 			       eb->start);  in btree_readpage_end_io_hook()
570 	found_level = btrfs_header_level(eb);  in btree_readpage_end_io_hook()
573 			   (int)btrfs_header_level(eb));  in btree_readpage_end_io_hook()
578 	btrfs_set_buffer_lockdep_class(btrfs_header_owner(eb),  in btree_readpage_end_io_hook()
579 				       eb, found_level);  in btree_readpage_end_io_hook()
581 	ret = csum_tree_block(root->fs_info, eb, 1);  in btree_readpage_end_io_hook()
592 	if (found_level == 0 && btrfs_check_leaf_full(root, eb)) {  in btree_readpage_end_io_hook()
593 		set_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);  in btree_readpage_end_io_hook()
597 	if (found_level > 0 && btrfs_check_node(root, eb))  in btree_readpage_end_io_hook()
601 		set_extent_buffer_uptodate(eb);  in btree_readpage_end_io_hook()
604 	    test_and_clear_bit(EXTENT_BUFFER_READAHEAD, &eb->bflags))  in btree_readpage_end_io_hook()
605 		btree_readahead_hook(root, eb, eb->start, ret);  in btree_readpage_end_io_hook()
613 		atomic_inc(&eb->io_pages);  in btree_readpage_end_io_hook()
614 		clear_extent_buffer_uptodate(eb);  in btree_readpage_end_io_hook()
616 	free_extent_buffer(eb);  in btree_readpage_end_io_hook()
623 	struct extent_buffer *eb;  in btree_io_failed_hook()  local
626 	eb = (struct extent_buffer *)page->private;  in btree_io_failed_hook()
627 	set_bit(EXTENT_BUFFER_READ_ERR, &eb->bflags);  in btree_io_failed_hook()
628 	eb->read_mirror = failed_mirror;  in btree_io_failed_hook()
629 	atomic_dec(&eb->io_pages);  in btree_io_failed_hook()
630 	if (test_and_clear_bit(EXTENT_BUFFER_READAHEAD, &eb->bflags))  in btree_io_failed_hook()
631 		btree_readahead_hook(root, eb, eb->start, -EIO);  in btree_io_failed_hook()
988 	struct extent_buffer *eb;  in btree_set_page_dirty()  local
991 	eb = (struct extent_buffer *)page->private;  in btree_set_page_dirty()
992 	BUG_ON(!eb);  in btree_set_page_dirty()
993 	BUG_ON(!test_bit(EXTENT_BUFFER_DIRTY, &eb->bflags));  in btree_set_page_dirty()
994 	BUG_ON(!atomic_read(&eb->refs));  in btree_set_page_dirty()
995 	btrfs_assert_tree_locked(eb);  in btree_set_page_dirty()
1025 			 int mirror_num, struct extent_buffer **eb)  in reada_tree_block_flagged()  argument
1049 		*eb = buf;  in reada_tree_block_flagged()
4262 	struct extent_buffer *eb;  in btrfs_destroy_marked_extents()  local
4274 			eb = btrfs_find_tree_block(root->fs_info, start);  in btrfs_destroy_marked_extents()
4276 			if (!eb)  in btrfs_destroy_marked_extents()
4278 			wait_on_extent_buffer_writeback(eb);  in btrfs_destroy_marked_extents()
4281 					       &eb->bflags))  in btrfs_destroy_marked_extents()
4282 				clear_extent_buffer_dirty(eb);  in btrfs_destroy_marked_extents()
4283 			free_extent_buffer_stale(eb);  in btrfs_destroy_marked_extents()