From patchwork Thu Apr 20 07:26:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Feng zhou X-Patchwork-Id: 676434 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 18848C77B78 for ; Thu, 20 Apr 2023 07:28:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234079AbjDTH2F (ORCPT ); Thu, 20 Apr 2023 03:28:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40302 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234082AbjDTH2D (ORCPT ); Thu, 20 Apr 2023 03:28:03 -0400 Received: from mail-pl1-x62a.google.com (mail-pl1-x62a.google.com [IPv6:2607:f8b0:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 502F02727 for ; Thu, 20 Apr 2023 00:27:11 -0700 (PDT) Received: by mail-pl1-x62a.google.com with SMTP id d9443c01a7336-1a6bc48aec8so6580895ad.2 for ; Thu, 20 Apr 2023 00:27:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1681975630; x=1684567630; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=hg5G5o39i/mOMMBB9sZHDlNqgHJXvtHyvxUr2dJ6THE=; b=BQbIwBXlnSqTma2rpNtp/kmApjVLLv7lEvBdWe5vYYjbZ3+kyORkbYhmhpoaSzdJCO k7DQSqxytbrb+wObQpbwjXpm700w5yoNG00kUe0MzgG4kAkD1TzRmtKnwKYQd4qEQtFC UXBQ7DhAwluK9Pqs9YwAimpgURIbt49BMWP4E/cBMi8ooSuRSPhcSOvbTgFF1qISPrnc JeR0B8E+OvWgBM5ba7ZNLwBBgq4QiUdETHDjQNqJ6PTKG/AzyFngtxmwB0jsu1sL4U7q dNJ/j8A8/9lsrVqzWb+hEgF/emtrfEmzNgQFU6PE1lbnItTn/KZRBewxbbX95KDwbmFI 61lA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681975630; x=1684567630; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=hg5G5o39i/mOMMBB9sZHDlNqgHJXvtHyvxUr2dJ6THE=; b=FAhfZ1G/qvdlBLfz+r10ySxc2Fq5wYlWOt3nuY/w4ochIp6PocIU1bfzfKOLhX5psv nA2CLXdaN2ftBFBuxXqdV+3h8BO6f2/8jsBLAOdkHjv0rqxVJ+Ctal3bCsY637TvlEaW nthduRVWgUH8ZnlFB0Rug0wmzGWP0UCKSty3HQKbhPe+Uc4MWMQbVviqFUMmDBdl0qZI Av6nKQ/LpPfYJcAI90hGGHKii/V9UKBS1eR+FU69ROGoS1Mt750yCn+opfdOLqrCaYuM xZZIt3Dtjr9K11hTiJXrYQJVBbTJoTw/dqODkClgagiEduZf+nSx9X22xOFmIcbgf/iy mQog== X-Gm-Message-State: AAQBX9dXN+Z+nZ3A52XOULpgDncEKufzzDz7FM7JkJirpL9D4W3tjpqk Mg4SfqNOiu/MjP0wLkz9AMPJFQ== X-Google-Smtp-Source: AKy350ZJIw4S2jRf7AWkGYprd3RLjOgFmimEdu2sssZcSsBy7YV14EYvdTzo91BU7GQ4xQK0LTxMDg== X-Received: by 2002:a17:903:2444:b0:19e:6cb9:4c8f with SMTP id l4-20020a170903244400b0019e6cb94c8fmr814495pls.41.1681975630719; Thu, 20 Apr 2023 00:27:10 -0700 (PDT) Received: from C02F52LSML85.bytedance.net ([139.177.225.238]) by smtp.gmail.com with ESMTPSA id y18-20020a17090ad71200b0023440af7aafsm612160pju.9.2023.04.20.00.27.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 20 Apr 2023 00:27:10 -0700 (PDT) From: Feng zhou 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 0/2] Introduce a new bpf helper of bpf_task_under_cgroup Date: Thu, 20 Apr 2023 15:26:55 +0800 Message-Id: <20230420072657.80324-1-zhoufeng.zf@bytedance.com> X-Mailer: git-send-email 2.39.2 (Apple Git-143) MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org From: Feng Zhou 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 to a map. Feng Zhou (2): bpf: Add bpf_task_under_cgroup helper selftests/bpf: Add testcase for bpf_task_under_cgroup include/uapi/linux/bpf.h | 13 +++++ kernel/bpf/verifier.c | 4 +- kernel/trace/bpf_trace.c | 31 ++++++++++++ tools/include/uapi/linux/bpf.h | 13 +++++ .../bpf/prog_tests/task_under_cgroup.c | 49 +++++++++++++++++++ .../bpf/progs/test_task_under_cgroup.c | 31 ++++++++++++ 6 files changed, 140 insertions(+), 1 deletion(-) 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