| From: Kuan-Ying Lee <kuan-ying.lee@canonical.com> |
| Subject: scripts/gdb: add iteration function for rbtree |
| Date: Tue, 23 Jul 2024 14:48:58 +0800 |
| |
| Add inorder iteration function for rbtree usage. |
| |
| This is a preparation patch for the next patch to fix the gdb mounts |
| issue. |
| |
| Link: https://lkml.kernel.org/r/20240723064902.124154-3-kuan-ying.lee@canonical.com |
| Fixes: 2eea9ce4310d ("mounts: keep list of mounts in an rbtree") |
| Signed-off-by: Kuan-Ying Lee <kuan-ying.lee@canonical.com> |
| Cc: Jan Kiszka <jan.kiszka@siemens.com> |
| Cc: Kieran Bingham <kbingham@kernel.org> |
| Cc: <stable@vger.kernel.org> |
| Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
| --- |
| |
| scripts/gdb/linux/rbtree.py | 12 ++++++++++++ |
| 1 file changed, 12 insertions(+) |
| |
| --- a/scripts/gdb/linux/rbtree.py~scripts-gdb-add-iteration-function-for-rbtree |
| +++ a/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(): |
| _ |
