[Unstable/Noble][PATCH v1 0/2] UBUNTU: SAUCE: pid_namespace: namespacify sysctl kernel.pid_max

[Alexander Mikhalitsyn]

Dear friends,

this is a proposal to take this upstream patch series:
https://lore.kernel.org/all/20240222160915.315255-1-aleksandr.mikhalitsyn@canonical.com/#t
as a Ubuntu Sauce.

I have a plan to make it in upstream Linux kernel. But we have internal
requestors in Canonical for this functionallity and I believe
that it makes sense to take it as Ubuntu Sauce for now.

Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn at canonical.com>

Christian Brauner (2):
  pid: allow pid_max to be set per pid namespace
  tests/pid_namespace: add pid_max tests

 include/linux/pid.h                           |   3 -
 include/linux/pid_namespace.h                 |  10 +-
 kernel/pid.c                                  | 126 +++++-
 kernel/pid_namespace.c                        |  43 ++-
 kernel/sysctl.c                               |   9 -
 kernel/trace/pid_list.c                       |   2 +-
 kernel/trace/trace.c                          |   2 +-
 kernel/trace/trace.h                          |   2 -
 .../selftests/pid_namespace/.gitignore        |   1 +
 .../testing/selftests/pid_namespace/Makefile  |   2 +-
 .../testing/selftests/pid_namespace/pid_max.c | 358 ++++++++++++++++++
 11 files changed, 522 insertions(+), 36 deletions(-)
 create mode 100644 tools/testing/selftests/pid_namespace/pid_max.c

-- 
2.34.1