On Thu, Mar 16, 2023 at 6:16 AM Alexander Mikhalitsyn <aleksandr.mikhalitsyn@xxxxxxxxxxxxx> wrote: > > Implement SCM_PIDFD, a new type of CMSG type analogical to SCM_CREDENTIALS, > but it contains pidfd instead of plain pid, which allows programmers not > to care about PID reuse problem. Hi Alexander This would add yet another conditional in af_unix fast path. It seems that we already can use pidfd_open() (since linux-5.3), and pass the resulting fd in af_unix SCM_RIGHTS message ? If you think this is not suitable, it should at least be mentioned in the changelog. Thanks.
