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From: Feng zhou <zhoufeng.zf@bytedance.com>
To: martin.lau@linux.dev, ast@kernel.org, daniel@iogearbox.net,
	andrii@kernel.org, song@kernel.org, yhs@fb.com,
	john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com,
	haoluo@google.com, jolsa@kernel.org, davem@davemloft.net,
	edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
	mykolal@fb.com, shuah@kernel.org
Cc: bpf@vger.kernel.org, linux-kernel@vger.kernel.org,
	netdev@vger.kernel.org, linux-kselftest@vger.kernel.org,
	yangzhenze@bytedance.com, wangdongdong.6@bytedance.com,
	zhoufeng.zf@bytedance.com
Subject: [PATCH bpf-next v2 0/2] Introduce a new kfunc of bpf_task_under_cgroup
Date: Fri, 21 Apr 2023 17:04:01 +0800	[thread overview]
Message-ID: <20230421090403.15515-1-zhoufeng.zf@bytedance.com> (raw)

From: Feng Zhou <zhoufeng.zf@bytedance.com>

Trace sched related functions, such as enqueue_task_fair, it is necessary to
specify a task instead of the current task which within a given cgroup.

Feng Zhou (2):
  bpf: Add bpf_task_under_cgroup() kfunc
  selftests/bpf: Add testcase for bpf_task_under_cgroup

Changelog:
v1->v2: Addressed comments from Alexei Starovoitov
- Add kfunc instead.
Details in here:
https://lore.kernel.org/all/20230420072657.80324-1-zhoufeng.zf@bytedance.com/

 kernel/bpf/helpers.c                          | 19 ++++++++
 .../bpf/prog_tests/task_under_cgroup.c        | 46 +++++++++++++++++++
 .../selftests/bpf/progs/cgrp_kfunc_common.h   |  1 +
 .../bpf/progs/test_task_under_cgroup.c        | 40 ++++++++++++++++
 4 files changed, 106 insertions(+)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/task_under_cgroup.c
 create mode 100644 tools/testing/selftests/bpf/progs/test_task_under_cgroup.c

-- 
2.20.1


             reply	other threads:[~2023-04-21  9:06 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-21  9:04 Feng zhou [this message]
2023-04-21  9:04 ` [PATCH bpf-next v2 1/2] bpf: Add bpf_task_under_cgroup() kfunc Feng zhou
2023-04-21 18:20   ` Alexei Starovoitov
2023-04-21  9:04 ` [PATCH bpf-next v2 2/2] selftests/bpf: Add testcase for bpf_task_under_cgroup Feng zhou
2023-04-21 18:24   ` Alexei Starovoitov
     [not found]     ` <f860cf89-74b2-9102-d28b-abec7d51f349@bytedance.com>
2023-04-23 16:22       ` [External] " Alexei Starovoitov

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