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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 93CD7C433DF for ; Thu, 25 Jun 2020 17:39:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 604AA206BE for ; Thu, 25 Jun 2020 17:39:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amazon.com header.i=@amazon.com header.b="M7WTSvG/" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405255AbgFYRjW (ORCPT ); Thu, 25 Jun 2020 13:39:22 -0400 Received: from smtp-fw-33001.amazon.com ([207.171.190.10]:20339 "EHLO smtp-fw-33001.amazon.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2405070AbgFYRjV (ORCPT ); Thu, 25 Jun 2020 13:39:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1593106762; x=1624642762; h=date:from:to:cc:message-id:references:mime-version: in-reply-to:subject; bh=i0IL/e8lGPymL5P20XRGaHauygZudyPYZ2TbY1s2H38=; b=M7WTSvG/YpH2Gi+rUU4Qv63xDgDv0e5Tn8pO2J4n1/SH1l6n7N4MvoH8 Qw7SiLTrsHD9+paD2xSx6J0M/z00oPczm33d8kIcUtl6suveO3n0qVNgq G/Pjj+h8wyIF6xqf4ph8Z9MPy78FLlSECBF/HRf5+8z8iFKctyW4ZDitQ 0=; IronPort-SDR: pminOWcjis4nRjrOu4V19+gSD9rciIH/3ITtqEG1rW8FjkMM1dYobKGV2iSw1HEjDBwMeIcdQt oy8I5aI50qdQ== X-IronPort-AV: E=Sophos;i="5.75,280,1589241600"; d="scan'208";a="53958709" Subject: Re: [PATCH v3 00/10] server side user xattr support (RFC 8276) Received: from sea32-co-svc-lb4-vlan3.sea.corp.amazon.com (HELO email-inbound-relay-2b-55156cd4.us-west-2.amazon.com) ([10.47.23.38]) by smtp-border-fw-out-33001.sea14.amazon.com with ESMTP; 25 Jun 2020 17:39:18 +0000 Received: from EX13MTAUWB001.ant.amazon.com (pdx4-ws-svc-p6-lb7-vlan2.pdx.amazon.com [10.170.41.162]) by email-inbound-relay-2b-55156cd4.us-west-2.amazon.com (Postfix) with ESMTPS id 3D31AA2293; Thu, 25 Jun 2020 17:39:17 +0000 (UTC) Received: from EX13D17UWB001.ant.amazon.com (10.43.161.252) by EX13MTAUWB001.ant.amazon.com (10.43.161.249) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 25 Jun 2020 17:39:16 +0000 Received: from EX13MTAUWB001.ant.amazon.com (10.43.161.207) by EX13D17UWB001.ant.amazon.com (10.43.161.252) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 25 Jun 2020 17:39:16 +0000 Received: from dev-dsk-fllinden-2c-c1893d73.us-west-2.amazon.com (172.23.141.97) by mail-relay.amazon.com (10.43.161.249) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 25 Jun 2020 17:39:16 +0000 Received: by dev-dsk-fllinden-2c-c1893d73.us-west-2.amazon.com (Postfix, from userid 6262777) id 9D5C3C3318; Thu, 25 Jun 2020 17:39:16 +0000 (UTC) Date: Thu, 25 Jun 2020 17:39:16 +0000 From: Frank van der Linden To: "J. Bruce Fields" CC: , Message-ID: <20200625173916.GB29600@dev-dsk-fllinden-2c-c1893d73.us-west-2.amazon.com> References: <20200623223927.31795-1-fllinden@amazon.com> <20200625165347.GB30655@fieldses.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20200625165347.GB30655@fieldses.org> User-Agent: Mutt/1.11.4 (2019-03-13) Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org On Thu, Jun 25, 2020 at 12:53:47PM -0400, J. Bruce Fields wrote: > CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you can confirm the sender and know the content is safe. > > > > By the way, I can't remember if I asked this before: is there a > particular use case that motivates this xattr work? > > --b. There's one use case that I can't really talk about publicly at this point (and it's not my code either, so I wouldn't have all the details). Nothing super secret or anything - it's just something that is not mine, so I won't try to speak for anyone. We wanted to get this upstreamed first, as that's the right thing to do. Since I posted my first RFC, I did get contacted off-list by several readers of linux-nfs who wanted to use the feature in practice, too, so there's definitely interest out there. - Frank