diff options
| -rw-r--r-- | lib/radix-tree.c | 6 |
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--; } |