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=-3.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 98FF6C433E2 for ; Mon, 31 Aug 2020 14:50:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 691E920719 for ; Mon, 31 Aug 2020 14:50:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=szeredi.hu header.i=@szeredi.hu header.b="B7Wp3JaE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727937AbgHaOuH (ORCPT ); Mon, 31 Aug 2020 10:50:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48980 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726384AbgHaOuF (ORCPT ); Mon, 31 Aug 2020 10:50:05 -0400 Received: from mail-vs1-xe29.google.com (mail-vs1-xe29.google.com [IPv6:2607:f8b0:4864:20::e29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CF86CC061573 for ; Mon, 31 Aug 2020 07:50:04 -0700 (PDT) Received: by mail-vs1-xe29.google.com with SMTP id p3so3363059vsr.4 for ; Mon, 31 Aug 2020 07:50:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=szeredi.hu; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=o8/6FtzmNQ4XUI22DDUh7WP15760g1u/VF5kYrz4MaI=; b=B7Wp3JaE4eKXWms+vthBQhfjguFFVbLZquburINPT0faRyTg73Mk+9nqkebuq0m09r OGHhlUASsenTFpmfcqf66hpIN/DbcP8OYFhNBDTkA+P1ItID1LO0NQxGqv7Y9WpRujIv sxtmMxKVnJOjpljaGPvUUNaD75mnEj57lrl+4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=o8/6FtzmNQ4XUI22DDUh7WP15760g1u/VF5kYrz4MaI=; b=LygOX5L+azlZZsPEzfh/3IIG1ZiFyvG+kWleQxOrudu/f7nA7GF+WajA/mQygIIMqt ALE8aOVuYBhxPppHkuFVwwea72SbOqPtnpRcflP+ZOI1poJ6AWm69aaznEukIDAush/r yAwN1uGD6rEAJ8mOdYUSsFdPAzLj4QiOI5hsXmOfZ3BasxH/VqjqFLuvGiYXmWk1v+Lt 99jSv+p9mGLxJzXbGFs0Hm+8mZ6PRHZoXPRnXPS3xJQJiE4Vel+EdtIDo3q1yDNJ98r6 UcPBJvOdxfk5GsFimpIpVaHr55hT8SJp0PqRvXJ0URoHpx/17aePDUPoh0Z+mYApbzjd Wk7w== X-Gm-Message-State: AOAM531zoE29MfN9497PHakNj9k6E/tw10ugsib2/cTulyi8V9kwLmeH fixiZ21CMgtYJIfpICDcJwEzWDaYdjCeaItGDdp89g== X-Google-Smtp-Source: ABdhPJwWpUAb2X54o3/p++y0s+NAeuNx/66wvgJ0cOcy/872hXSf+z6Ao8GGRD1+seW9z5F0S600F8gHrU+tMfbCRJw= X-Received: by 2002:a67:8783:: with SMTP id j125mr1325565vsd.174.1598885403014; Mon, 31 Aug 2020 07:50:03 -0700 (PDT) MIME-Version: 1.0 References: <20200829180448.GQ1236603@ZenIV.linux.org.uk> <20200829192522.GS1236603@ZenIV.linux.org.uk> <20200830191016.GZ14765@casper.infradead.org> <20200831113705.GA14765@casper.infradead.org> <20200831132339.GD14765@casper.infradead.org> <20200831142532.GC4267@mit.edu> <20200831144554.GF14765@casper.infradead.org> In-Reply-To: <20200831144554.GF14765@casper.infradead.org> From: Miklos Szeredi Date: Mon, 31 Aug 2020 16:49:50 +0200 Message-ID: Subject: Re: xattr names for unprivileged stacking? To: Matthew Wilcox Cc: "Theodore Y. Ts'o" , Al Viro , Dave Chinner , "Dr. David Alan Gilbert" , Greg Kurz , linux-fsdevel@vger.kernel.org, Stefan Hajnoczi , Miklos Szeredi , Vivek Goyal , Giuseppe Scrivano , Daniel J Walsh , Chirantan Ekbote Content-Type: text/plain; charset="UTF-8" Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Mon, Aug 31, 2020 at 4:45 PM Matthew Wilcox wrote: > If one thinks that Miklos' crazypants infinite hierarchy is the way to Oh, I care about ADS *implementation* not a wee bit. You can implement that as a flat structure, or not implement it at all. What I care about is the *interface*. Thanks, Miklos