Re: [PATCH] Attempt to clarify "Augmented Trees" section ofDocumentation/rbtree.txt

From: Peter Zijlstra
Date: Fri Apr 15 2011 - 06:52:33 EST

On Thu, 2011-04-14 at 14:22 -0500, Rob Landley wrote:
> +This function is called when either of a node's children change. It is not
> +called recursively: the callback function is responsible for traversing parent
> +nodes and updating their information as necessary.

static void rb_augment_path(struct rb_node *node, rb_augment_f func, void *data)
struct rb_node *parent;

func(node, data);
parent = rb_parent(node);
if (!parent)

if (node == parent->rb_left && parent->rb_right)
func(parent->rb_right, data);
else if (parent->rb_left)
func(parent->rb_left, data);

node = parent;
goto up;

Uhm, what?
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