diff options
| -rw-r--r-- | radix-tree.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/radix-tree.c b/radix-tree.c index 4f295fcf..74579449 100644 --- a/radix-tree.c +++ b/radix-tree.c @@ -833,10 +833,10 @@ int radix_tree_tagged(struct radix_tree_root *root, unsigned int tag) static unsigned long __maxindex(unsigned int height) { unsigned int tmp = height * RADIX_TREE_MAP_SHIFT; - unsigned long index = (~0UL >> (RADIX_TREE_INDEX_BITS - tmp - 1)) >> 1; + unsigned long index = ~0UL; - if (tmp >= RADIX_TREE_INDEX_BITS) - index = ~0UL; + if (tmp < RADIX_TREE_INDEX_BITS) + index = (index >> (RADIX_TREE_INDEX_BITS - tmp - 1)) >> 1; return index; } |