Merge tag 'seccomp-v4.16-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git...

- Fix seccomp GET_METADATA to deal with field sizes correctly (Tycho Andersen)
- Add selftest to make sure GET_METADATA doesn't regress (Tycho Andersen)

diff --cc kernel/seccomp.c
Simple merge

diff --cc tools/testing/selftests/seccomp/seccomp_bpf.c
Simple merge