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@xxxxxxxxxxxxxxx>
Signed-off-by: Kuan-Ying Lee <kuan-ying.lee@xxxxxxxxxxxxx>
---
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():
--
2.34.1
