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=-2.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 83BBAFC6197 for ; Fri, 8 Nov 2019 22:08:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4F67F2084D for ; Fri, 8 Nov 2019 22:08:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=fomichev-me.20150623.gappssmtp.com header.i=@fomichev-me.20150623.gappssmtp.com header.b="lSX3aYZE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730745AbfKHWIp (ORCPT ); Fri, 8 Nov 2019 17:08:45 -0500 Received: from mail-pl1-f194.google.com ([209.85.214.194]:41183 "EHLO mail-pl1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726294AbfKHWIp (ORCPT ); Fri, 8 Nov 2019 17:08:45 -0500 Received: by mail-pl1-f194.google.com with SMTP id d29so4741395plj.8 for ; Fri, 08 Nov 2019 14:08:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fomichev-me.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=lG1xlX5D1aRGViazl8UoM3ech3donnwQAfj5bt3MJsU=; b=lSX3aYZERhsK3cRHZ/kT5d806YsqPFXjmyzVbYw7agl2GoBNbIMgAgE1/lqvdq3ylF +HqHgMWzXzluVePo75DKH7qeYnNH9xhv8pFsC8rtbmRfTukREBif6TB2j6ug17eqwAG6 hnI7VKxWpHUVGatPm6qyKE6YQpXHVcOCcjtSRIktmRrb+OUCwSZ5rq92sRH+BpapIKTb PPOtwaTBtIIAmiCvaaCcAKk7qA8pE7sut4AgOhmvsh3EyEGJmY0XY7I6GrwlmXDOu8W3 XKkv/kQZGWxMjyZ5VgKUZItxTLZZLV/gJrRCfoxtjU9+Cn0xLP/NR39SlI24hwxDQws7 C2rw== 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:references :mime-version:content-disposition:in-reply-to:user-agent; bh=lG1xlX5D1aRGViazl8UoM3ech3donnwQAfj5bt3MJsU=; b=djKRsaz8SW3F0F9v9NaIhdI7NccPGxuQuWMn3/DSiYFPCC/qnYYil3L2etOejw9Orx 52vgJhwCg1Lfa0l+9V1x10GUkRM0RUkk3/yEZmZiN7sHl7BwDkkujF6l+39o4UceeLAd NggljTZiw/A/WXiylYkV6q7CwCm4wzLbQkjdtPqDG9pRaYEsuL/A1e+YTEP46WHlhsI7 5gQKAnaKqg2AH73nuQbeTXmgxnlaf5Wli3fMRrLMkm23d8pL0c9KXYynp6wXEQor5GGS lKBaNc6IuN6Iy4ZuACdg5mujfAwLYO52suK9vOsRXovESYe7wOM+IZ8nwz16OcFRXqKv DdbQ== X-Gm-Message-State: APjAAAVFxA9KwwATM2PgFFiD0hTYalqyWWhiwlPlYtXAOSYoUQFOdCqr 2pAdPQy4KsQFa+OqpposI2XIlg== X-Google-Smtp-Source: APXvYqw7UuNbJavqD966BDvBafHD0K6Vkque6WSGHkFKLUOUP5e6oSSHPfZkQDLZVMiQqTCpi2JXlQ== X-Received: by 2002:a17:902:9a92:: with SMTP id w18mr12925769plp.186.1573250924593; Fri, 08 Nov 2019 14:08:44 -0800 (PST) Received: from localhost ([2601:646:8f00:18d9:d0fa:7a4b:764f:de48]) by smtp.gmail.com with ESMTPSA id h8sm13299761pjp.1.2019.11.08.14.08.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Nov 2019 14:08:43 -0800 (PST) Date: Fri, 8 Nov 2019 14:08:43 -0800 From: Stanislav Fomichev To: Andrii Nakryiko Cc: bpf@vger.kernel.org, netdev@vger.kernel.org, ast@fb.com, daniel@iogearbox.net, andrii.nakryiko@gmail.com, kernel-team@fb.com Subject: Re: [PATCH bpf-next 0/3] Add support for memory-mapping BPF array maps Message-ID: <20191108220843.GA1449846@mini-arch> References: <20191108042041.1549144-1-andriin@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191108042041.1549144-1-andriin@fb.com> User-Agent: Mutt/1.12.2 (2019-09-21) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 11/07, Andrii Nakryiko wrote: > This patch set adds ability to memory-map BPF array maps (single- and > multi-element). The primary use case is memory-mapping BPF array maps, created > to back global data variables, created by libbpf implicitly. This allows for > much better usability, along with avoiding syscalls to read or update data > completely. Just wondering: is it something that you plan to extend to other map types?