- block: Parse filenames only when explicitly requested (CVE-2024-4467)
- block: introduce bdrv_open_file_child() helper
- qcow2: Don't open data_file with BDRV_O_NO_IO (CVE-2024-4467)
- qcow2: Do not reopen data_file in invalidate_cache
Signed-off-by: Jiabo Feng <fengjiabo1@huawei.com>