122 				 struct extent_buffer *eb, u64 parent_transid,  in verify_parent_transid()  argument
128 	if (!parent_transid || btrfs_header_generation(eb) == parent_transid)  in verify_parent_transid()
134 	lock_extent(io_tree, eb->start, eb->start + eb->len - 1, &cached_state);  in verify_parent_transid()
135 	if (extent_buffer_uptodate(eb) &&  in verify_parent_transid()
136 	    btrfs_header_generation(eb) == parent_transid) {  in verify_parent_transid()
140 	btrfs_err_rl(eb->fs_info,  in verify_parent_transid()
142 			eb->start, eb->read_mirror,  in verify_parent_transid()
143 			parent_transid, btrfs_header_generation(eb));  in verify_parent_transid()
145 	clear_extent_buffer_uptodate(eb);  in verify_parent_transid()
147 	unlock_extent(io_tree, eb->start, eb->start + eb->len - 1,  in verify_parent_transid()
191 int btrfs_verify_level_key(struct extent_buffer *eb, int level,  in btrfs_verify_level_key()  argument
194 	struct btrfs_fs_info *fs_info = eb->fs_info;  in btrfs_verify_level_key()
199 	found_level = btrfs_header_level(eb);  in btrfs_verify_level_key()
205 			  eb->start, level, found_level);  in btrfs_verify_level_key()
218 	if (btrfs_header_generation(eb) > fs_info->last_trans_committed)  in btrfs_verify_level_key()
222 	if (btrfs_header_nritems(eb) == 0) {  in btrfs_verify_level_key()
225 			  eb->start);  in btrfs_verify_level_key()
231 		btrfs_node_key_to_cpu(eb, &found_key, 0);  in btrfs_verify_level_key()
233 		btrfs_item_key_to_cpu(eb, &found_key, 0);  in btrfs_verify_level_key()
241 			  eb->start, parent_transid, first_key->objectid,  in btrfs_verify_level_key()
257 int btrfs_read_extent_buffer(struct extent_buffer *eb,  in btrfs_read_extent_buffer()  argument
261 	struct btrfs_fs_info *fs_info = eb->fs_info;  in btrfs_read_extent_buffer()
271 		clear_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);  in btrfs_read_extent_buffer()
272 		ret = read_extent_buffer_pages(eb, WAIT_COMPLETE, mirror_num);  in btrfs_read_extent_buffer()
274 			if (verify_parent_transid(io_tree, eb,  in btrfs_read_extent_buffer()
277 			else if (btrfs_verify_level_key(eb, level,  in btrfs_read_extent_buffer()
285 					      eb->start, eb->len);  in btrfs_read_extent_buffer()
291 			failed_mirror = eb->read_mirror;  in btrfs_read_extent_buffer()
303 		btrfs_repair_eb_io_failure(eb, failed_mirror);  in btrfs_read_extent_buffer()
308 static int csum_one_extent_buffer(struct extent_buffer *eb)  in csum_one_extent_buffer()  argument
310 	struct btrfs_fs_info *fs_info = eb->fs_info;  in csum_one_extent_buffer()
314 	ASSERT(memcmp_extent_buffer(eb, fs_info->fs_devices->metadata_uuid,  in csum_one_extent_buffer()
317 	csum_tree_block(eb, result);  in csum_one_extent_buffer()
319 	if (btrfs_header_level(eb))  in csum_one_extent_buffer()
320 		ret = btrfs_check_node(eb);  in csum_one_extent_buffer()
322 		ret = btrfs_check_leaf_full(eb);  in csum_one_extent_buffer()
331 	if (unlikely(btrfs_header_generation(eb) <= fs_info->last_trans_committed)) {  in csum_one_extent_buffer()
335 			  eb->start, btrfs_header_generation(eb),  in csum_one_extent_buffer()
339 	write_extent_buffer(eb, result, 0, fs_info->csum_size);  in csum_one_extent_buffer()
344 	btrfs_print_tree(eb, 0);  in csum_one_extent_buffer()
346 		  eb->start);  in csum_one_extent_buffer()
362 		struct extent_buffer *eb;  in csum_dirty_subpage_buffers()  local
365 		eb = find_extent_buffer(fs_info, cur);  in csum_dirty_subpage_buffers()
370 		if (WARN_ON(!eb))  in csum_dirty_subpage_buffers()
373 		if (WARN_ON(cur != btrfs_header_bytenr(eb))) {  in csum_dirty_subpage_buffers()
374 			free_extent_buffer(eb);  in csum_dirty_subpage_buffers()
378 			free_extent_buffer(eb);  in csum_dirty_subpage_buffers()
382 		ret = csum_one_extent_buffer(eb);  in csum_dirty_subpage_buffers()
383 		free_extent_buffer(eb);  in csum_dirty_subpage_buffers()
400 	struct extent_buffer *eb;  in csum_dirty_buffer()  local
405 	eb = (struct extent_buffer *)page->private;  in csum_dirty_buffer()
406 	if (page != eb->pages[0])  in csum_dirty_buffer()
409 	found_start = btrfs_header_bytenr(eb);  in csum_dirty_buffer()
411 	if (test_bit(EXTENT_BUFFER_NO_CHECK, &eb->bflags)) {  in csum_dirty_buffer()
425 	return csum_one_extent_buffer(eb);  in csum_dirty_buffer()
428 static int check_tree_block_fsid(struct extent_buffer *eb)  in check_tree_block_fsid()  argument
430 	struct btrfs_fs_info *fs_info = eb->fs_info;  in check_tree_block_fsid()
435 	read_extent_buffer(eb, fsid, offsetof(struct btrfs_header, fsid),  in check_tree_block_fsid()
458 static int validate_extent_buffer(struct extent_buffer *eb)  in validate_extent_buffer()  argument
460 	struct btrfs_fs_info *fs_info = eb->fs_info;  in validate_extent_buffer()
468 	found_start = btrfs_header_bytenr(eb);  in validate_extent_buffer()
469 	if (found_start != eb->start) {  in validate_extent_buffer()
472 			     eb->read_mirror, eb->start, found_start);  in validate_extent_buffer()
476 	if (check_tree_block_fsid(eb)) {  in validate_extent_buffer()
478 			     eb->start, eb->read_mirror);  in validate_extent_buffer()
482 	found_level = btrfs_header_level(eb);  in validate_extent_buffer()
486 			eb->read_mirror, btrfs_header_level(eb), eb->start);  in validate_extent_buffer()
491 	csum_tree_block(eb, result);  in validate_extent_buffer()
492 	header_csum = page_address(eb->pages[0]) +  in validate_extent_buffer()
493 		get_eb_offset_in_page(eb, offsetof(struct btrfs_header, csum));  in validate_extent_buffer()
498 			      eb->start, eb->read_mirror,  in validate_extent_buffer()
501 			      btrfs_header_level(eb));  in validate_extent_buffer()
511 	if (found_level == 0 && btrfs_check_leaf_full(eb)) {  in validate_extent_buffer()
512 		set_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);  in validate_extent_buffer()
516 	if (found_level > 0 && btrfs_check_node(eb))  in validate_extent_buffer()
520 		set_extent_buffer_uptodate(eb);  in validate_extent_buffer()
524 			  eb->start, eb->read_mirror);  in validate_extent_buffer()
533 	struct extent_buffer *eb;  in validate_subpage_buffer()  local
544 	eb = find_extent_buffer(fs_info, start);  in validate_subpage_buffer()
549 	ASSERT(eb);  in validate_subpage_buffer()
551 	reads_done = atomic_dec_and_test(&eb->io_pages);  in validate_subpage_buffer()
555 	eb->read_mirror = mirror;  in validate_subpage_buffer()
556 	if (test_bit(EXTENT_BUFFER_READ_ERR, &eb->bflags)) {  in validate_subpage_buffer()
560 	ret = validate_extent_buffer(eb);  in validate_subpage_buffer()
564 	set_extent_buffer_uptodate(eb);  in validate_subpage_buffer()
566 	free_extent_buffer(eb);  in validate_subpage_buffer()
573 	atomic_inc(&eb->io_pages);  in validate_subpage_buffer()
574 	clear_extent_buffer_uptodate(eb);  in validate_subpage_buffer()
575 	free_extent_buffer(eb);  in validate_subpage_buffer()
583 	struct extent_buffer *eb;  in btrfs_validate_metadata_buffer()  local
592 	eb = (struct extent_buffer *)page->private;  in btrfs_validate_metadata_buffer()
598 	atomic_inc(&eb->refs);  in btrfs_validate_metadata_buffer()
600 	reads_done = atomic_dec_and_test(&eb->io_pages);  in btrfs_validate_metadata_buffer()
604 	eb->read_mirror = mirror;  in btrfs_validate_metadata_buffer()
605 	if (test_bit(EXTENT_BUFFER_READ_ERR, &eb->bflags)) {  in btrfs_validate_metadata_buffer()
609 	ret = validate_extent_buffer(eb);  in btrfs_validate_metadata_buffer()
617 		atomic_inc(&eb->io_pages);  in btrfs_validate_metadata_buffer()
618 		clear_extent_buffer_uptodate(eb);  in btrfs_validate_metadata_buffer()
620 	free_extent_buffer(eb);  in btrfs_validate_metadata_buffer()
856 	struct extent_buffer *eb;  in btree_dirty_folio()  local
861 		eb = folio_get_private(folio);  in btree_dirty_folio()
862 		BUG_ON(!eb);  in btree_dirty_folio()
863 		BUG_ON(!test_bit(EXTENT_BUFFER_DIRTY, &eb->bflags));  in btree_dirty_folio()
864 		BUG_ON(!atomic_read(&eb->refs));  in btree_dirty_folio()
865 		btrfs_assert_tree_write_locked(eb);  in btree_dirty_folio()
885 		eb = find_extent_buffer(fs_info, cur);  in btree_dirty_folio()
886 		ASSERT(eb);  in btree_dirty_folio()
887 		ASSERT(test_bit(EXTENT_BUFFER_DIRTY, &eb->bflags));  in btree_dirty_folio()
888 		ASSERT(atomic_read(&eb->refs));  in btree_dirty_folio()
889 		btrfs_assert_tree_write_locked(eb);  in btree_dirty_folio()
890 		free_extent_buffer(eb);  in btree_dirty_folio()
5041 	struct extent_buffer *eb;  in btrfs_destroy_marked_extents()  local
5053 			eb = find_extent_buffer(fs_info, start);  in btrfs_destroy_marked_extents()
5055 			if (!eb)  in btrfs_destroy_marked_extents()
5057 			wait_on_extent_buffer_writeback(eb);  in btrfs_destroy_marked_extents()
5060 					       &eb->bflags))  in btrfs_destroy_marked_extents()
5061 				clear_extent_buffer_dirty(eb);  in btrfs_destroy_marked_extents()
5062 			free_extent_buffer_stale(eb);  in btrfs_destroy_marked_extents()