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=-8.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL autolearn=no 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 9BAC7C433E0 for ; Thu, 28 May 2020 16:09:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6908F2071A for ; Thu, 28 May 2020 16:09:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="vQSPm6UK" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404852AbgE1QJt (ORCPT ); Thu, 28 May 2020 12:09:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57802 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404827AbgE1QJs (ORCPT ); Thu, 28 May 2020 12:09:48 -0400 Received: from mail-qt1-x849.google.com (mail-qt1-x849.google.com [IPv6:2607:f8b0:4864:20::849]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EA77BC08C5C6 for ; Thu, 28 May 2020 09:09:47 -0700 (PDT) Received: by mail-qt1-x849.google.com with SMTP id y25so503838qtb.6 for ; Thu, 28 May 2020 09:09:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=l7izMIej695jtDHxNmO1NkELxUiXr1gE4xucCDUIPm4=; b=vQSPm6UKNcJZfv+Y5nSEzSRQ+ZCC2hrUyqqqGRl6RnGVqdmRRolQ1bbxPfqLsaHCVJ CADJhY7EtrpdJ+nsVZUDr6E+pVWGA5aG8SaAVJtxJUYotJGe9+TVZNLnA1bjO0UgMbRI iW3tW6Q7DeNvkfG3aw8VIB7NWetu5Gs20EmjX//IWhHU6O2wWPfZylqKXDq49qNOT8NM HXqm/zeT91CbqgKKwEWpW1Khy4n6fm5NhDpDvhlS04E8BX69m4K0CQQ31UWdUz0T4Dps 44/WXKTmjtCcgrly9B6TkypSzT9UVCRQZS9ccFzoCmdO+LLVdfTVAyqMKhVaN56trKf2 fNYw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=l7izMIej695jtDHxNmO1NkELxUiXr1gE4xucCDUIPm4=; b=VUJWNrYfgCALoYmwNi8lOgHoFd+A1r1m4W12MFvoa+8WAy7rsqOnFM4qzXO9zwSFxJ 923q8NQ3QjPrW+Ftufgwohb/tB5F+rKOFVvsm/r4b6z+QfGrtveeXhEinycqohg5uUAa zhQdsMmmrIOeO0ydM22esdmb+rMKC7viE00GmT42GMjEzNB1cOEy51mZXEVark8IYAdJ FbE1pli1WdW3QwzyZ0ia9voKc9qemTuvhZtxGP3XiAvPlOgi9JHdPmOXFNL2JN7xqY8T WxDeLA/wN3/8UA06sTH7u+o0pmFb1P86BFMe0CvOhKBXKL6OrDQ0RdDB/I4OFdOOJeYb vyBA== X-Gm-Message-State: AOAM531KgoCo8mxe5qW2aFzp5B4BqQ6HBczoSrpXJhMiixGQ4Sy34Owv 2ZERozXklSBR3KGF21lDwqCvfEI= X-Google-Smtp-Source: ABdhPJxL4q98bQJFae2QsNI+B0JMMlsleqWKuc5RO8AxECU+QolvkoeIFQJH+VO4UZqDxgTjmYIiqyY= X-Received: by 2002:a0c:a1e3:: with SMTP id e90mr3945555qva.187.1590682187088; Thu, 28 May 2020 09:09:47 -0700 (PDT) Date: Thu, 28 May 2020 09:09:45 -0700 In-Reply-To: <87r1v42ue8.fsf@cloudflare.com> Message-Id: <20200528160945.GD57268@google.com> Mime-Version: 1.0 References: <20200527170840.1768178-1-jakub@cloudflare.com> <20200527170840.1768178-6-jakub@cloudflare.com> <20200527205300.GC57268@google.com> <87r1v42ue8.fsf@cloudflare.com> Subject: Re: [PATCH bpf-next 5/8] bpf: Add link-based BPF program attachment to network namespace From: sdf@google.com To: Jakub Sitnicki Cc: bpf@vger.kernel.org, netdev@vger.kernel.org, kernel-team@cloudflare.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org On 05/28, Jakub Sitnicki wrote: > On Wed, May 27, 2020 at 10:53 PM CEST, sdf@google.com wrote: > > On 05/27, Jakub Sitnicki wrote: [..] > > Otherwise, those mutex_lock+rcu_read_lock are a bit confusing. > Great idea, thanks. This is almost the same as what I was thinking > about. The only difference being that I want to also get ref to net, so > it doesn't go away while we continue outside of RCU read-side critical > section. That will also work, up to you. Thanks!