77761836ae
Previous code might fail to get the correct ln node. And trigger extra walk through of the tree. Fix it. While walking through the tree, better to search from right to left as the node->start likely close to *address*. Change-Id: If86ddf73e59a1eb88225d1ea90797818e8165488 Signed-off-by: xinhui pan <xinhui.pan@amd.com>