hfscommon/Misc/VolumeAllocation.c

1585 	extent_node_t search_sentinel;
1592 	memset (&search_sentinel, 0, sizeof(extent_node_t));
1593 	search_sentinel.offset = startingBlock;
1602 	node = extent_tree_off_search_next(&hfsmp->offset_tree, &search_sentinel);
1659 	search_sentinel.offset = hfsmp->hfs_metazone_end;
1660 	search_sentinel.length = minBlocks;
1664 		node = extent_tree_off_search_next(&hfsmp->offset_tree, &search_sentinel);
1671 		node = extent_tree_off_search_nextWithSize (&hfsmp->offset_tree, &search_sentinel);
1686 			metaend_node = extent_tree_off_search_prev(&hfsmp->offset_tree, &search_sentinel);
1709 		search_sentinel.offset = 0;
1710 		search_sentinel.length = minBlocks;
1711 		node = extent_tree_off_search_nextWithSize (&hfsmp->offset_tree, &search_sentinel);
2469 			extent_node_t search_sentinel;
2470 			search_sentinel.offset = startingBlock;
2472 			node = extent_tree_off_search_prev(&hfsmp->offset_tree, &search_sentinel);
3490 	extent_node_t search_sentinel;
3498 	search_sentinel.offset = startBlock;
3499 	search_sentinel.length = numBlocks;
3501 	node = extent_tree_off_search_prev(&hfsmp->offset_tree, &search_sentinel);
4218 		extent_node_t search_sentinel;
4224 		memset (&search_sentinel, 0, sizeof(extent_node_t));
4225 		search_sentinel.offset = new_end_block;
4232 		node = extent_tree_off_search_prev(&hfsmp->offset_tree, &search_sentinel);