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=-21.6 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT, USER_IN_DEF_DKIM_WL 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 1F68BC433DB for ; Mon, 4 Jan 2021 23:21:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D2BAD2253A for ; Mon, 4 Jan 2021 23:21:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727095AbhADXVY (ORCPT ); Mon, 4 Jan 2021 18:21:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57138 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726163AbhADXVX (ORCPT ); Mon, 4 Jan 2021 18:21:23 -0500 Received: from mail-pf1-x449.google.com (mail-pf1-x449.google.com [IPv6:2607:f8b0:4864:20::449]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 855D3C061795 for ; Mon, 4 Jan 2021 15:20:43 -0800 (PST) Received: by mail-pf1-x449.google.com with SMTP id e126so9676285pfh.15 for ; Mon, 04 Jan 2021 15:20:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:message-id:mime-version:subject:from:to:cc; bh=ptl9lvlNeQ8rb1QFATiaT3uH/4C0oopGRoPxfvyAb2c=; b=PSk2pLEREebJjCZgCidiMVgVTczCb9yXAsf7cDX6JwkPX/fXZIVH66P1pI+iCasrDz U1E4qLZHl1KuMxEwVjhfvMYGl8p1K4Ausimy3aqIS1e4+JUk5c2uz1ABNpKNW0u932bJ zWUwN9VfydzOvd6wwsGTh7w7Xsobn2xNioXavE91ZWbpB6VsqNl7Cq6ng8dQwRGIjvUe BFR3F2i3uSO1eXb7Mmyym7D2b+d95FVBwjTGm6XQcO8HeNEpaPX/Z3TwHo+tMMlWzU2l yxO+fM9ZYlHVdwKbKpwQTDYNLY1LgJXGThP3+T4Nc8hCV3PzohjqS9uVsDL+Hz5krlhu sw7Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:message-id:mime-version:subject:from :to:cc; bh=ptl9lvlNeQ8rb1QFATiaT3uH/4C0oopGRoPxfvyAb2c=; b=iZCL2FhHPM8RKmNwq3rYtqDJBPcY2Eh2l+k4I4g2dEvncrDye43/1PnErjHde7LmpE FuQPKODnkDvvFDtk0CrUX7/DrOtxCENRwDwAQPW/YL6dw5Ironk1+lIK4Nxg8uV2vCvR RUYpFG+NdXtM6CH9Fm+FQ7OAqyXgtzBThwlI0N/As384jRO0Xxn8pXq2fmZRHAgAqkqY 3RnK4yAtkzzuPm9P+yEoJuR0/LnL4lJ3zKnGFS8X9WQInIKKhUp1WyRJXnXd7VB5ktO5 1SFw5SLP8BTzq8ZmWddXFgxRU7KPfgyxBeP5H23vSWLfLpulgfzVN8NCejy0URaz4opG v5Cw== X-Gm-Message-State: AOAM532Ld4MZT6jbRzqPW6nrCHEc7lNxRT8xpD8n6Wwpnl4mVbzrfZUa ykmL4rgpgDchp+IlZ1NN2VguvlDFHDPiRaJ+kbTUwLUEKwEsmfYc6UxEuhT7L/1BZDe8aD84tkC 2SgZ0EcyS04K1K0dL4KgjnXvjXLT3vzhoY6dGgK2n0n8jrPN0NhZ3Ew== X-Google-Smtp-Source: ABdhPJzjaMED1n2APX00sZbDymFDwQSDI3BjsSgJNrEf5XTtzu0nfbCt88SbsYI4a4Pb7ZT91X4tN7Y= Sender: "sdf via sendgmr" X-Received: from sdf2.svl.corp.google.com ([2620:15c:2c4:1:7220:84ff:fe09:7732]) (user=sdf job=sendgmr) by 2002:a05:6214:1887:: with SMTP id cx7mr78894414qvb.39.1609798496582; Mon, 04 Jan 2021 14:14:56 -0800 (PST) Date: Mon, 4 Jan 2021 14:14:52 -0800 Message-Id: <20210104221454.2204239-1-sdf@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.29.2.729.g45daf8777d-goog Subject: [PATCH bpf-next v2 0/2] bpf: misc performance improvements for cgroup hooks From: Stanislav Fomichev To: netdev@vger.kernel.org, bpf@vger.kernel.org Cc: ast@kernel.org, daniel@iogearbox.net, Stanislav Fomichev Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org First patch tries to remove kzalloc/kfree from getsockopt for the common cases. Second patch switches cgroup_bpf_enabled to be per-attach to to add only overhead for the cgroup attach types used on the system. No visible user-side changes. v2: - perf numbers for getsockopt kmalloc reduction (Song Liu) - (sk) in BPF_CGROUP_PRE_CONNECT_ENABLED (Song Liu) - 128 -> 64 buffer size, BUILD_BUG_ON (Martin KaFai Lau) Stanislav Fomichev (2): bpf: try to avoid kzalloc in cgroup/{s,g}etsockopt bpf: split cgroup_bpf_enabled per attach type include/linux/bpf-cgroup.h | 36 +++++++++++++------------ include/linux/filter.h | 3 +++ kernel/bpf/cgroup.c | 54 +++++++++++++++++++++++++++++++------- net/ipv4/af_inet.c | 9 ++++--- net/ipv4/udp.c | 7 +++-- net/ipv6/af_inet6.c | 9 ++++--- net/ipv6/udp.c | 7 +++-- 7 files changed, 83 insertions(+), 42 deletions(-) -- 2.29.2.729.g45daf8777d-goog