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path: root/tools/testing/selftests/acct/cgroupstats.c
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2026-08-03selftests/acct: share netlink helpersYiyang Chen
Extract the duplicated generic netlink boilerplate (netlink_open, send_request, get_family_id, and NLA walker macros) from cgroupstats.c and taskstats_fill_stats_tgid.c into a shared netlink_helper.{h,c}. Link: https://lore.kernel.org/a2adf27308b5cd90d50b59e8519b87da49486bee.1783876192.git.cyyzero16@gmail.com Signed-off-by: Yiyang Chen <cyyzero16@gmail.com> Suggested-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Balbir Singh <balbirs@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-08-03selftests/acct: add cgroupstats functional testYiyang Chen
Add a self-contained test for the CGROUPSTATS_CMD_GET genl command that covers three cases: - querying a cgroup v1 hierarchy and verifying the response contains non-zero task counts - rejecting an invalid fd without NLM_F_ACK - rejecting an invalid fd with NLM_F_ACK Link: https://lore.kernel.org/2a56921276f0962f97f00863e8c7d3c3f6893d5a.1783713230.git.cyyzero16@gmail.com Signed-off-by: Yiyang Chen <cyyzero16@gmail.com> Cc: Balbir Singh <balbirs@nvidia.com> Cc: Dr. Thomas Orgis <thomas.orgis@uni-hamburg.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>