If we deleted an entry through an index which looked up a sibling pointer, we'd end up zeroing out the wrong slots in the node. Use get_sibling_offset() to find the right slot. Signed-off-by: Matthew Wilcox <willy@xxxxxxxxxxxxxxx> Reviewed-by: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx> --- lib/radix-tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/radix-tree.c b/lib/radix-tree.c index 42a0492b2ba2..554986599c63 100644 --- a/lib/radix-tree.c +++ b/lib/radix-tree.c @@ -1557,7 +1557,7 @@ void *radix_tree_delete_item(struct radix_tree_root *root, return entry; } - offset = index & RADIX_TREE_MAP_MASK; + offset = get_sibling_offset(node, slot); /* * Clear all tags associated with the item to be deleted. -- 2.8.0.rc3 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>