Re: [PATCH] [2.4] Re: /proc/ioports overrun patch

[viro]

On Wed, Sep 24, 2003 at 08:51:33PM +0100, viro@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx wrote:
 
> Hmm...  Why not make the iterator traverse the resource tree instead?
> After all, all it takes is addition of pointer to parent resource into
> struct resource.  Goes for both 2.4 and 2.6...

Hey - it's already there.  That makes life very easy - ->next() should
do the following:
	if (resource->child)
		return resource->child;
	while (!resource->sibling) {
		resource = resource->parent;
		if (!resource)
			return NULL;
	}
	return resource->sibling;

AFAICS that should be it - walks the tree in right order.  Depth can be
trivially found by ->show(), so there's no problems either...
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/