Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A1922C433EF for ; Wed, 5 Jan 2022 15:10:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235445AbiAEPKK (ORCPT ); Wed, 5 Jan 2022 10:10:10 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51582 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230413AbiAEPKJ (ORCPT ); Wed, 5 Jan 2022 10:10:09 -0500 Received: from fieldses.org (fieldses.org [IPv6:2600:3c00:e000:2f7::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E9F64C061245 for ; Wed, 5 Jan 2022 07:10:08 -0800 (PST) Received: by fieldses.org (Postfix, from userid 2815) id 12EF372FB; Wed, 5 Jan 2022 10:10:08 -0500 (EST) DKIM-Filter: OpenDKIM Filter v2.11.0 fieldses.org 12EF372FB DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fieldses.org; s=default; t=1641395408; bh=1xIHFA0oTu2u8kaGI3xeWhZwG4i7oodMRE5u8AfE7bM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=FzO5qsjTKFxtwvwUYCKOTuF4zPmsWD/J7ffFsQkPfXRYC+0aCt/lKYafqboDc0m51 YehV/+cwcS2n3IwH6ZlyIf+nWeKA4fPLnmgnIBbm/gqBMR6Al27oPQrFjAwQsL2HSF Wki9f9L+wRYU6GcT3nBteRJ4ax72Qmi/MosV0Bfo= Date: Wed, 5 Jan 2022 10:10:08 -0500 From: "bfields@fieldses.org" To: Ondrej Valousek Cc: Trond Myklebust , "trondmy@kernel.org" , "linux-nfs@vger.kernel.org" , "anna.schumaker@netapp.com" Subject: Re: [PATCH 0/8] Support btime and other NFSv4 specific attributes Message-ID: <20220105151008.GB24685@fieldses.org> References: <20211217204854.439578-1-trondmy@kernel.org> <20220103205103.GI21514@fieldses.org> <2b27da48604aaa34acce22188bfd429037540a89.camel@hammerspace.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org On Wed, Jan 05, 2022 at 03:05:17PM +0000, Ondrej Valousek wrote: > Sorry for confusion and maybe dumb questions: > - The aim is to transfer these attributes via RFC8276 (File System Extended attributes in NFSv4)? No, NFSv4 defines attributes for all of these. RFC8276 attributes are purely for user-defined attribues, not for anything that the server or filesystem gives specific meaning. > - AFAIK support for RFC8276 in NFS (only version 4.2) server is since kernel 5.9, right? NFS client supports these as well? > - The patches below implements the feature in both, nfs client AND server, right? Client only. These would probably be quite easy to support on the server side when the filesystem supports them, but nobody's volunteered to implement that yet; patches welcome. --b.