143 	struct extent_buffer *leaf;  in btrfs_insert_file_extent()  local
157 	leaf = path->nodes[0];  in btrfs_insert_file_extent()
158 	item = btrfs_item_ptr(leaf, path->slots[0],  in btrfs_insert_file_extent()
160 	btrfs_set_file_extent_disk_bytenr(leaf, item, disk_offset);  in btrfs_insert_file_extent()
161 	btrfs_set_file_extent_disk_num_bytes(leaf, item, disk_num_bytes);  in btrfs_insert_file_extent()
162 	btrfs_set_file_extent_offset(leaf, item, offset);  in btrfs_insert_file_extent()
163 	btrfs_set_file_extent_num_bytes(leaf, item, num_bytes);  in btrfs_insert_file_extent()
164 	btrfs_set_file_extent_ram_bytes(leaf, item, ram_bytes);  in btrfs_insert_file_extent()
165 	btrfs_set_file_extent_generation(leaf, item, trans->transid);  in btrfs_insert_file_extent()
166 	btrfs_set_file_extent_type(leaf, item, BTRFS_FILE_EXTENT_REG);  in btrfs_insert_file_extent()
167 	btrfs_set_file_extent_compression(leaf, item, compression);  in btrfs_insert_file_extent()
168 	btrfs_set_file_extent_encryption(leaf, item, encryption);  in btrfs_insert_file_extent()
169 	btrfs_set_file_extent_other_encoding(leaf, item, other_encoding);  in btrfs_insert_file_extent()
171 	btrfs_mark_buffer_dirty(leaf);  in btrfs_insert_file_extent()
188 	struct extent_buffer *leaf;  in btrfs_lookup_csum()  local
199 	leaf = path->nodes[0];  in btrfs_lookup_csum()
205 		btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);  in btrfs_lookup_csum()
211 		csums_in_item = btrfs_item_size_nr(leaf, path->slots[0]);  in btrfs_lookup_csum()
221 	item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_csum_item);  in btrfs_lookup_csum()
418 	 * If requested number of sectors is larger than one leaf can contain,  in btrfs_lookup_bio_sums()
501 	struct extent_buffer *leaf;  in btrfs_lookup_csums_range()  local
532 		leaf = path->nodes[0];  in btrfs_lookup_csums_range()
533 		btrfs_item_key_to_cpu(leaf, &key, path->slots[0] - 1);  in btrfs_lookup_csums_range()
538 			    btrfs_item_size_nr(leaf, path->slots[0] - 1))  in btrfs_lookup_csums_range()
544 		leaf = path->nodes[0];  in btrfs_lookup_csums_range()
545 		if (path->slots[0] >= btrfs_header_nritems(leaf)) {  in btrfs_lookup_csums_range()
551 			leaf = path->nodes[0];  in btrfs_lookup_csums_range()
554 		btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in btrfs_lookup_csums_range()
563 		size = btrfs_item_size_nr(leaf, path->slots[0]);  in btrfs_lookup_csums_range()
747 	struct extent_buffer *leaf;  in truncate_one_csum()  local
753 	leaf = path->nodes[0];  in truncate_one_csum()
754 	csum_end = btrfs_item_size_nr(leaf, path->slots[0]) / csum_size;  in truncate_one_csum()
800 	struct extent_buffer *leaf;  in btrfs_del_csums()  local
827 		leaf = path->nodes[0];  in btrfs_del_csums()
828 		btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);  in btrfs_del_csums()
838 		csum_end = btrfs_item_size_nr(leaf, path->slots[0]) / csum_size;  in btrfs_del_csums()
852 			 * leaf correspond to our range and then delete them all  in btrfs_del_csums()
861 					btrfs_item_key_to_cpu(leaf, &pk, slot);  in btrfs_del_csums()
906 			item_offset = btrfs_item_ptr_offset(leaf,  in btrfs_del_csums()
909 			memzero_extent_buffer(leaf, item_offset + offset,  in btrfs_del_csums()
977 	struct extent_buffer *leaf = NULL;  in btrfs_csum_file_blocks()  local
1002 		leaf = path->nodes[0];  in btrfs_csum_file_blocks()
1003 		item_end = btrfs_item_ptr(leaf, path->slots[0],  in btrfs_csum_file_blocks()
1006 			   btrfs_item_size_nr(leaf, path->slots[0]));  in btrfs_csum_file_blocks()
1016 		leaf = path->nodes[0];  in btrfs_csum_file_blocks()
1017 		item_size = btrfs_item_size_nr(leaf, path->slots[0]);  in btrfs_csum_file_blocks()
1038 	 * First check if the leaf has enough free space for at least one  in btrfs_csum_file_blocks()
1042 	if (btrfs_leaf_free_space(leaf) >= csum_size) {  in btrfs_csum_file_blocks()
1043 		btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);  in btrfs_csum_file_blocks()
1063 	leaf = path->nodes[0];  in btrfs_csum_file_blocks()
1064 	btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);  in btrfs_csum_file_blocks()
1074 	if (csum_offset == btrfs_item_size_nr(leaf, path->slots[0]) /  in btrfs_csum_file_blocks()
1099 		 * checksum item. If we are at the last item in the leaf, then  in btrfs_csum_file_blocks()
1102 		 * getting the first key for the next leaf, repeat the btree  in btrfs_csum_file_blocks()
1104 		 * would only save a few bytes of leaf space.  in btrfs_csum_file_blocks()
1129 		diff = diff - btrfs_item_size_nr(leaf, path->slots[0]);  in btrfs_csum_file_blocks()
1130 		diff = min_t(u32, btrfs_leaf_free_space(leaf), diff);  in btrfs_csum_file_blocks()
1162 	leaf = path->nodes[0];  in btrfs_csum_file_blocks()
1164 	item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_csum_item);  in btrfs_csum_file_blocks()
1166 				      btrfs_item_size_nr(leaf, path->slots[0]));  in btrfs_csum_file_blocks()
1174 	write_extent_buffer(leaf, sums->sums + index, (unsigned long)item,  in btrfs_csum_file_blocks()
1200 	struct extent_buffer *leaf = path->nodes[0];  in btrfs_extent_item_to_extent_map()  local
1205 	u8 type = btrfs_file_extent_type(leaf, fi);  in btrfs_extent_item_to_extent_map()
1206 	int compress_type = btrfs_file_extent_compression(leaf, fi);  in btrfs_extent_item_to_extent_map()
1208 	btrfs_item_key_to_cpu(leaf, &key, slot);  in btrfs_extent_item_to_extent_map()
1211 	em->ram_bytes = btrfs_file_extent_ram_bytes(leaf, fi);  in btrfs_extent_item_to_extent_map()
1217 			btrfs_file_extent_offset(leaf, fi);  in btrfs_extent_item_to_extent_map()
1218 		em->orig_block_len = btrfs_file_extent_disk_num_bytes(leaf, fi);  in btrfs_extent_item_to_extent_map()
1219 		bytenr = btrfs_file_extent_disk_bytenr(leaf, fi);  in btrfs_extent_item_to_extent_map()
1230 			bytenr += btrfs_file_extent_offset(leaf, fi);  in btrfs_extent_item_to_extent_map()
1265 	const struct extent_buffer *leaf = path->nodes[0];  in btrfs_file_extent_end()  local
1271 	btrfs_item_key_to_cpu(leaf, &key, slot);  in btrfs_file_extent_end()
1273 	fi = btrfs_item_ptr(leaf, slot, struct btrfs_file_extent_item);  in btrfs_file_extent_end()
1275 	if (btrfs_file_extent_type(leaf, fi) == BTRFS_FILE_EXTENT_INLINE) {  in btrfs_file_extent_end()
1276 		end = btrfs_file_extent_ram_bytes(leaf, fi);  in btrfs_file_extent_end()
1277 		end = ALIGN(key.offset + end, leaf->fs_info->sectorsize);  in btrfs_file_extent_end()
1279 		end = key.offset + btrfs_file_extent_num_bytes(leaf, fi);  in btrfs_file_extent_end()