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/linux-2.6.39/Documentation/
Dprio_tree.txt3 * radix_index = vm_pgoff : start_vm_pgoff
7 radix_index. The conditions for indexing are:
11 then ->radix_index < ->left->radix_index;
13 then ->radix_index < ->right->radix_index;
14 * nodes are hashed to left or right subtree using radix_index
31 the same vm_pgoff (radix_index) and if necessary we build different
32 overflow-sub-trees to handle each possible radix_index. For example,
44 vmas are represented [radix_index, size_index, heap_index]
78 we only use the first prio_tree_root->index_bits as radix_index.
/linux-2.6.39/lib/
Dprio_tree.c191 unsigned long radix_index, heap_index; in prio_tree_insert() local
195 get_index(root, node, &radix_index, &heap_index); in prio_tree_insert()
207 if (r_index == radix_index && h_index == heap_index) in prio_tree_insert()
211 (h_index == heap_index && r_index > radix_index)) { in prio_tree_insert()
217 r_index = radix_index; in prio_tree_insert()
218 radix_index = index; in prio_tree_insert()
225 index = heap_index - radix_index; in prio_tree_insert()
227 index = radix_index; in prio_tree_insert()