[Devel] [PATCH VZ10 v3 0/2] Improve RPC kill-tasks mechanism

[Vladimir Riabchun]

There is a hack for stopping containers with RPC connections,
but is has several flaws.

They are described in the second commit and in the task
https://virtuozzo.atlassian.net/browse/VSTOR-126316

Suggested approach - atomic (with respect to the set of
network namespaces) iteration over nets and RPC kill
in each.
Current implementation also allows restoring container
RPC by clearing sn->kill_tasks flag.

Tested by a CT with nested network namespace.

Current vzctl per-PID approach:
[  590.261534] kill-tasks: by task (vzctl:14066) in net:[4026533581]
[  591.308176] CT: acded8b8-6a7a-494e-a4f1-a58767276b6f: stopped

With new machine.slice/CTID/ve.rpc_kill interface:
[  663.055995] kill-tasks: by task (bash:4084) in net:[4026533581]
[  663.056371] kill-tasks: by task (bash:4084) in net:[4026533987]

v2: https://lists.openvz.org/pipermail/devel/2026-June/083801.html

Vladimir Riabchun (2):
  ve/sunrpc: Refactor {rpc, write}_kill_tasks
  ve/sunrpc: Implement a per-ve sunrpc killer

 include/linux/sunrpc/clnt.h |  1 +
 include/linux/ve.h          |  4 ++++
 kernel/ve/ve.c              | 46 +++++++++++++++++++++++++++++++++++++
 net/sunrpc/clnt.c           | 36 +++++++++++++++++------------
 net/sunrpc/sunrpc_syms.c    |  3 +++
 5 files changed, 75 insertions(+), 15 deletions(-)

-- 
2.47.1