37 static int check_extent_in_eb(struct btrfs_key *key, struct extent_buffer *eb,  in check_extent_in_eb()  argument
45 	if (!btrfs_file_extent_compression(eb, fi) &&  in check_extent_in_eb()
46 	    !btrfs_file_extent_encryption(eb, fi) &&  in check_extent_in_eb()
47 	    !btrfs_file_extent_other_encoding(eb, fi)) {  in check_extent_in_eb()
51 		data_offset = btrfs_file_extent_offset(eb, fi);  in check_extent_in_eb()
52 		data_len = btrfs_file_extent_num_bytes(eb, fi);  in check_extent_in_eb()
82 static int find_extent_in_eb(struct extent_buffer *eb, u64 wanted_disk_byte,  in find_extent_in_eb()  argument
99 	nritems = btrfs_header_nritems(eb);  in find_extent_in_eb()
101 		btrfs_item_key_to_cpu(eb, &key, slot);  in find_extent_in_eb()
104 		fi = btrfs_item_ptr(eb, slot, struct btrfs_file_extent_item);  in find_extent_in_eb()
105 		extent_type = btrfs_file_extent_type(eb, fi);  in find_extent_in_eb()
109 		disk_byte = btrfs_file_extent_disk_bytenr(eb, fi);  in find_extent_in_eb()
113 		ret = check_extent_in_eb(&key, eb, fi, extent_item_pos, eie);  in find_extent_in_eb()
254 	struct extent_buffer *eb;  in add_all_parents()  local
264 		eb = path->nodes[level];  in add_all_parents()
265 		ret = ulist_add(parents, eb->start, 0, GFP_NOFS);  in add_all_parents()
284 		eb = path->nodes[0];  in add_all_parents()
287 		btrfs_item_key_to_cpu(eb, &key, slot);  in add_all_parents()
293 		fi = btrfs_item_ptr(eb, slot, struct btrfs_file_extent_item);  in add_all_parents()
294 		disk_byte = btrfs_file_extent_disk_bytenr(eb, fi);  in add_all_parents()
301 				ret = check_extent_in_eb(&key, eb, fi,  in add_all_parents()
309 			ret = ulist_add_merge_ptr(parents, eb->start,  in add_all_parents()
346 	struct extent_buffer *eb;  in __resolve_indirect_ref()  local
402 	eb = path->nodes[level];  in __resolve_indirect_ref()
403 	while (!eb) {  in __resolve_indirect_ref()
409 		eb = path->nodes[level];  in __resolve_indirect_ref()
524 	struct extent_buffer *eb;  in __add_missing_keys()  local
535 		eb = read_tree_block(fs_info->tree_root, ref->wanted_disk_byte,  in __add_missing_keys()
537 		if (IS_ERR(eb)) {  in __add_missing_keys()
538 			return PTR_ERR(eb);  in __add_missing_keys()
539 		} else if (!extent_buffer_uptodate(eb)) {  in __add_missing_keys()
540 			free_extent_buffer(eb);  in __add_missing_keys()
543 		btrfs_tree_read_lock(eb);  in __add_missing_keys()
544 		if (btrfs_header_level(eb) == 0)  in __add_missing_keys()
545 			btrfs_item_key_to_cpu(eb, &ref->key_for_search, 0);  in __add_missing_keys()
547 			btrfs_node_key_to_cpu(eb, &ref->key_for_search, 0);  in __add_missing_keys()
548 		btrfs_tree_read_unlock(eb);  in __add_missing_keys()
549 		free_extent_buffer(eb);  in __add_missing_keys()
1078 				struct extent_buffer *eb;  local
1080 				eb = read_tree_block(fs_info->extent_root,
1082 				if (IS_ERR(eb)) {
1083 					ret = PTR_ERR(eb);
1085 				} else if (!extent_buffer_uptodate(eb)) {
1086 					free_extent_buffer(eb);
1090 				btrfs_tree_read_lock(eb);
1091 				btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
1092 				ret = find_extent_in_eb(eb, bytenr,
1094 				btrfs_tree_read_unlock_blocking(eb);
1095 				free_extent_buffer(eb);
1405 	struct extent_buffer *eb = eb_in;  local
1417 			read_extent_buffer(eb, dest + bytes_left,
1419 		if (eb != eb_in) {
1421 				btrfs_tree_read_unlock_blocking(eb);
1422 			free_extent_buffer(eb);
1438 		eb = path->nodes[0];
1440 		if (eb != eb_in) {
1442 				btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
1447 		iref = btrfs_item_ptr(eb, slot, struct btrfs_inode_ref);
1449 		name_len = btrfs_inode_ref_name_len(eb, iref);
1480 	struct extent_buffer *eb;  local
1513 	eb = path->nodes[0];
1514 	item_size = btrfs_item_size_nr(eb, path->slots[0]);
1517 	ei = btrfs_item_ptr(eb, path->slots[0], struct btrfs_extent_item);
1518 	flags = btrfs_extent_flags(eb, ei);
1547 static int __get_extent_inline_ref(unsigned long *ptr, struct extent_buffer *eb,  argument
1559 		flags = btrfs_extent_flags(eb, ei);
1581 	*out_type = btrfs_extent_inline_ref_type(eb, *out_eiref);
1598 int tree_backref_for_extent(unsigned long *ptr, struct extent_buffer *eb,  argument
1610 		ret = __get_extent_inline_ref(ptr, eb, key, ei, item_size,
1624 	*out_root = btrfs_extent_inline_ref_offset(eb, eiref);
1630 		*out_level = btrfs_tree_block_level(eb, info);
1760 			      struct extent_buffer *eb, void *ctx);
1773 	struct extent_buffer *eb;  local
1793 		eb = btrfs_clone_extent_buffer(path->nodes[0]);
1794 		if (!eb) {
1798 		extent_buffer_get(eb);
1799 		btrfs_tree_read_lock(eb);
1800 		btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
1804 		iref = btrfs_item_ptr(eb, slot, struct btrfs_inode_ref);
1806 		for (cur = 0; cur < btrfs_item_size(eb, item); cur += len) {
1807 			name_len = btrfs_inode_ref_name_len(eb, iref);
1813 				      (unsigned long)(iref + 1), eb, ctx);
1819 		btrfs_tree_read_unlock_blocking(eb);
1820 		free_extent_buffer(eb);
1837 	struct extent_buffer *eb;  local
1855 		eb = btrfs_clone_extent_buffer(path->nodes[0]);
1856 		if (!eb) {
1860 		extent_buffer_get(eb);
1862 		btrfs_tree_read_lock(eb);
1863 		btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
1866 		item_size = btrfs_item_size_nr(eb, slot);
1867 		ptr = btrfs_item_ptr_offset(eb, slot);
1874 			parent = btrfs_inode_extref_parent(eb, extref);
1875 			name_len = btrfs_inode_extref_name_len(eb, extref);
1877 				      (unsigned long)&extref->name, eb, ctx);
1881 			cur_offset += btrfs_inode_extref_name_len(eb, extref);
1884 		btrfs_tree_read_unlock_blocking(eb);
1885 		free_extent_buffer(eb);
1920 			 struct extent_buffer *eb, void *ctx)  argument
1934 				   name_off, eb, inum, fspath_min, bytes_left);