summaryrefslogtreecommitdiff
path: root/lib/radix-tree.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/radix-tree.c')
-rw-r--r--lib/radix-tree.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index ff91792346f6..9bb440f317c9 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -415,10 +415,10 @@ int __radix_tree_create(struct radix_tree_root *root, unsigned long index,
slot = indirect_to_ptr(root->rnode);
height = root->height;
- shift = (height-1) * RADIX_TREE_MAP_SHIFT;
+ shift = height * RADIX_TREE_MAP_SHIFT;
offset = 0; /* uninitialised var warning */
- while (height > 0) {
+ while (shift > 0) {
if (slot == NULL) {
/* Have to add a child node. */
if (!(slot = radix_tree_node_alloc(root)))
@@ -436,11 +436,11 @@ int __radix_tree_create(struct radix_tree_root *root, unsigned long index,
}
/* Go a level down */
+ shift -= RADIX_TREE_MAP_SHIFT;
offset = (index >> shift) & RADIX_TREE_MAP_MASK;
node = slot;
slot = node->slots[offset];
slot = indirect_to_ptr(slot);
- shift -= RADIX_TREE_MAP_SHIFT;
height--;
}