Add inorder iteration function for rbtree usage.
This is a preparation patch for the next patch to fix the gdb mounts issue.
Fixes: 2eea9ce4310d ("mounts: keep list of mounts in an rbtree") Cc: stable@vger.kernel.org Signed-off-by: Kuan-Ying Lee kuan-ying.lee@canonical.com --- scripts/gdb/linux/rbtree.py | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/scripts/gdb/linux/rbtree.py b/scripts/gdb/linux/rbtree.py index fe462855eefd..fcbcc5f4153c 100644 --- a/scripts/gdb/linux/rbtree.py +++ b/scripts/gdb/linux/rbtree.py @@ -9,6 +9,18 @@ from linux import utils rb_root_type = utils.CachedType("struct rb_root") rb_node_type = utils.CachedType("struct rb_node")
+def rb_inorder_for_each(root): + def inorder(node): + if node: + yield from inorder(node['rb_left']) + yield node + yield from inorder(node['rb_right']) + + yield from inorder(root['rb_node']) + +def rb_inorder_for_each_entry(root, gdbtype, member): + for node in rb_inorder_for_each(root): + yield utils.container_of(node, gdbtype, member)
def rb_first(root): if root.type == rb_root_type.get_type():