Re: [PATCH v2 8/9] selftests/harness: Share _metadata between forked processes

On Mon, Apr 29, 2024 at 03:09:30PM +0200, Mickaël Salaün wrote:

Unconditionally share _metadata between all forked processes, which enables to actually catch errors which were previously ignored.

This is required for a following commit replacing vfork() with clone3() and CLONE_VFORK (i.e. not sharing the full memory) . It should also be useful to share _metadata to extend expectations to test process's forks. For instance, this change identified a wrong expectation in pidfd_setns_test.

Cc: Jakub Kicinski kuba@kernel.org Cc: Kees Cook keescook@chromium.org Cc: Shuah Khan skhan@linuxfoundation.org Cc: Will Drewry wad@chromium.org Signed-off-by: Mickaël Salaün mic@digikod.net

Reviewed-by: Kees Cook keescook@chromium.org