169 	struct file_extent_cluster cluster;  member
3016 				 struct file_extent_cluster *cluster)  argument
3026 	BUG_ON(cluster->start != cluster->boundary[0]);
3029 	ret = btrfs_check_data_free_space(inode, cluster->end +
3030 					  1 - cluster->start, 0);
3034 	while (nr < cluster->nr) {
3035 		start = cluster->boundary[nr] - offset;
3036 		if (nr + 1 < cluster->nr)
3037 			end = cluster->boundary[nr + 1] - 1 - offset;
3039 			end = cluster->end - offset;
3051 	btrfs_free_reserved_data_space(inode, cluster->end +
3052 				       1 - cluster->start);
3094 					struct file_extent_cluster *cluster)  argument
3107 	if (!cluster->nr)
3114 	ret = prealloc_file_extent_cluster(inode, cluster);
3120 	ret = setup_extent_mapping(inode, cluster->start - offset,
3121 				   cluster->end - offset, cluster->start);
3125 	index = (cluster->start - offset) >> PAGE_CACHE_SHIFT;
3126 	last_index = (cluster->end - offset) >> PAGE_CACHE_SHIFT;
3173 		if (nr < cluster->nr &&
3174 		    page_start + offset == cluster->boundary[nr]) {
3193 	WARN_ON(nr != cluster->nr);
3201 			 struct file_extent_cluster *cluster)  argument
3205 	if (cluster->nr > 0 && extent_key->objectid != cluster->end + 1) {
3206 		ret = relocate_file_extent_cluster(inode, cluster);
3209 		cluster->nr = 0;
3212 	if (!cluster->nr)
3213 		cluster->start = extent_key->objectid;
3215 		BUG_ON(cluster->nr >= MAX_EXTENTS);
3216 	cluster->end = extent_key->objectid + extent_key->offset - 1;
3217 	cluster->boundary[cluster->nr] = extent_key->objectid;
3218 	cluster->nr++;
3220 	if (cluster->nr >= MAX_EXTENTS) {
3221 		ret = relocate_file_extent_cluster(inode, cluster);
3224 		cluster->nr = 0;
3873 	memset(&rc->cluster, 0, sizeof(rc->cluster));
4033 						   &key, &rc->cluster);
4061 						   &rc->cluster);