Re: [PATCH v3 00/16] pidfs: provide information after task has been reaped

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On Wed, Mar 05, 2025 at 01:06:35PM +0100, Oleg Nesterov wrote:
> On 03/05, Christian Brauner wrote:
> >
> > Christian Brauner (16):
> >       pidfs: switch to copy_struct_to_user()
> >       pidfd: rely on automatic cleanup in __pidfd_prepare()
> >       pidfs: move setting flags into pidfs_alloc_file()
> >       pidfs: use private inode slab cache
> >       pidfs: record exit code and cgroupid at exit
> >       pidfs: allow to retrieve exit information
> >       selftests/pidfd: fix header inclusion
> >       pidfs/selftests: ensure correct headers for ioctl handling
> >       selftests/pidfd: expand common pidfd header
> >       selftests/pidfd: add first PIDFD_INFO_EXIT selftest
> >       selftests/pidfd: add second PIDFD_INFO_EXIT selftest
> >       selftests/pidfd: add third PIDFD_INFO_EXIT selftest
> >       selftests/pidfd: add fourth PIDFD_INFO_EXIT selftest
> >       selftests/pidfd: add fifth PIDFD_INFO_EXIT selftest
> >       selftests/pidfd: add sixth PIDFD_INFO_EXIT selftest
> >       selftests/pidfd: add seventh PIDFD_INFO_EXIT selftest
> 
> I see nothing wrong in V3. For 1-6

Fwiw, I'm quite happy with the tests since we now also have test for
multi-threaded exec behavior with pidfd polling.

> 
> Reviewed-by: Oleg Nesterov <oleg@xxxxxxxxxx>

Thanks for all the help and the Ack!
There'll be more patches this or next cycle though. ;)




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