From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,T_DKIMWL_WL_MED, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 27B9EC3279B for ; Fri, 6 Jul 2018 21:01:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C046B22BE8 for ; Fri, 6 Jul 2018 21:01:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=netronome-com.20150623.gappssmtp.com header.i=@netronome-com.20150623.gappssmtp.com header.b="zivX/Vtd" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C046B22BE8 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=netronome.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934428AbeGFVBU (ORCPT ); Fri, 6 Jul 2018 17:01:20 -0400 Received: from mail-qk0-f195.google.com ([209.85.220.195]:40184 "EHLO mail-qk0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933982AbeGFVBS (ORCPT ); Fri, 6 Jul 2018 17:01:18 -0400 Received: by mail-qk0-f195.google.com with SMTP id b129-v6so6998069qke.7 for ; Fri, 06 Jul 2018 14:01:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=netronome-com.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:in-reply-to:references :organization:mime-version:content-transfer-encoding; bh=g+89KdBFybMmaBX5zLpQi8xdiV1/vtpHgjUiDssHV7Y=; b=zivX/VtdH+h6mqycw8ao4K17J5GBdDXKIq/nia1kBF/rYVlCOI77+i9LJRf3BRQLyQ hOJkZs8tAw6QdfODgNHclbaj5OTCo7c6XV6s77OIMIb5Ou6/twyGn5jtko9oboxMFR8k BGCLxJamdG4KnaHVM+3LyplfsAXG/6uzZ+EmWuCmZiggzqaMFPKXMZUbx/+GLMD30Bpr Dn5tvTeYa3uTUM7bYq4Xl3CNnvkzmT1IccV754a42KIiRFwDh9oc7VYCQ34dKiuJm5gS rNSbq/DKx6CFMxCVYE28SeeyBJi9Fnpvo3mY7ynP2gjssHBZE1Q7dReqks4slIeeOGkz tLcg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:organization:mime-version:content-transfer-encoding; bh=g+89KdBFybMmaBX5zLpQi8xdiV1/vtpHgjUiDssHV7Y=; b=RYGnkHPfJZMRJCN/HJRo5EHm2IoW6TJ6qxCgvHsXZ5Bniyrec+pGNA0cubmdpGJTN4 gcXRPtKrfmmFozG3Q51LLF6UHn0VNXVXfddGuzRmLrW/PWdojiW1BwJJawDVPkAEk5Mm RKHkV13S/HkSGOMEKo2cFxPYQ1jvI1w1GedsfGzMjWVcN7DfcVJOhW8pDQNoI66x8qg7 fyrC0k4LV4f44CcIKN7j+iR4UE+jr4NpBypF6GODJ//OGGFndmDV8iPXFYlqLh2rLPzX ujlB8t7SZh3iOaNU3egyHLzigMujhdS6oLcqxWDECoFRU5soqGrqxXvYNlsdn/GZ/FwS JTJQ== X-Gm-Message-State: APt69E0I5bA0d1noYwirbsRxMYm4whD787J0sw6MkNZZWlXVkhCUA/nb AI3LEr2s2VMNukTrvu2BgdqGDw== X-Google-Smtp-Source: AAOMgpdLsLrWD+a2km9VMf5oM9wzLY6EFOM2kExvPZiSB9tAeSd3+SWpX4Gf1HwKt71yB9L7X7eUbw== X-Received: by 2002:a37:6142:: with SMTP id v63-v6mr10259942qkb.418.1530910877642; Fri, 06 Jul 2018 14:01:17 -0700 (PDT) Received: from cakuba.netronome.com ([75.53.12.129]) by smtp.gmail.com with ESMTPSA id y187-v6sm5871128qkd.32.2018.07.06.14.01.16 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 06 Jul 2018 14:01:17 -0700 (PDT) Date: Fri, 6 Jul 2018 14:01:14 -0700 From: Jakub Kicinski To: Roman Gushchin Cc: , , , Quentin Monnet , Daniel Borkmann , Alexei Starovoitov Subject: Re: [PATCH v2 bpf-next 1/3] bpftool: introduce cgroup tree command Message-ID: <20180706140114.2f74ff26@cakuba.netronome.com> In-Reply-To: <20180706183012.6475-1-guro@fb.com> References: <20180706183012.6475-1-guro@fb.com> Organization: Netronome Systems, Ltd. MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 6 Jul 2018 11:30:10 -0700, Roman Gushchin wrote: > This commit introduces a new bpftool command: cgroup tree. > The idea is to iterate over the whole cgroup tree and print > all attached programs. > > I was debugging a bpf/systemd issue, and found, that there is > no simple way to listen all bpf programs attached to cgroups. > I did master something in bash, but after some time got tired of it, > and decided, that adding a dedicated bpftool command could be > a better idea. > > So, here it is: > $ sudo ./bpftool cgroup tree > CgroupPath > ID AttachType AttachFlags Name > /sys/fs/cgroup/system.slice/systemd-machined.service > 18 ingress > 17 egress > /sys/fs/cgroup/system.slice/systemd-logind.service > 20 ingress > 19 egress > /sys/fs/cgroup/system.slice/systemd-udevd.service > 16 ingress > 15 egress > /sys/fs/cgroup/system.slice/systemd-journald.service > 14 ingress > 13 egress > > Signed-off-by: Roman Gushchin > Cc: Jakub Kicinski > Cc: Quentin Monnet > Cc: Daniel Borkmann > Cc: Alexei Starovoitov Acked-by: Jakub Kicinski