Received: by 2002:a05:6a10:a0d1:0:0:0:0 with SMTP id j17csp474538pxa; Tue, 11 Aug 2020 07:37:23 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxV6yHg+V/iSQi0pBMPBYGYcAvH1LWa1GuTjovghdP0Pu5tpb2L8qYyxUAIE1Z4F/BIAzqr X-Received: by 2002:a17:906:3f82:: with SMTP id b2mr27684959ejj.240.1597156643684; Tue, 11 Aug 2020 07:37:23 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1597156643; cv=none; d=google.com; s=arc-20160816; b=Odt63B+W78kQOwRjC0A3kzktj8YV50aE6vlI319yj4R8mMmb5E/1CxqnKu4ngOZdkw Fo3WhcLz42zDbpF2dxqxEI7IaDiK/0Y2uTQp81XnwqHpefsQGi0vmCJjrnRCWGhJP2bm xqdmE1S4LPuDy9xXPrKqIa2qFytMmJ7CK+yMPFTlIFlWhilqvPmYDmIx8XDY7zRM3LlV qiA4vevVEKwJB0YaZL50p891YYkAEIVJ0xvWXp2XL5s9P0wUktOMRWB0rLOW1G87FXIQ 0VpLf/ZVkjthleLKXFaYVbmItXNie2vPMSKoDGict/4o52yWXXOyjZ7ICO1W/TnpXNs/ vvaA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date; bh=Rv0QkE0hqiuVDjYFmkVJHoXSgLGFqKShgQOxiauOhDg=; b=nF9X7VglL0m6297fBSGshtWHvhVeLgQ95x2mwD/1/M1Xq78mcgXniFrHOLCUvWiMAX /N5gC2WZXL3Mo0gPerYwjaVYQNgAC8Adm1M7u79hIYsL+Vx2iH6Z0dyeOrgqaB6P2/f2 dBw8Kc16wa0SCr6UH80Wzv6rxJIOT7XQS0CzSl8L4WtiOypx95kAO50a/jDcz9BO1uAp R7U8n0MbDrbqObNyzXUWbEm1GWMxB93iJHzMS56yvAIPbusFPIAsyVgfgxzqAIvmEwzb 39vHRuwq4loeK4JaXovWcgk/26DvPIAP0s5xQJZHJPzjWxHhqcpYIm2JDLfr5Cqe7+I3 fZaA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id rl11si11438497ejb.519.2020.08.11.07.36.59; Tue, 11 Aug 2020 07:37:23 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728862AbgHKOgL (ORCPT + 99 others); Tue, 11 Aug 2020 10:36:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51834 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728740AbgHKOgL (ORCPT ); Tue, 11 Aug 2020 10:36:11 -0400 Received: from ZenIV.linux.org.uk (zeniv.linux.org.uk [IPv6:2002:c35c:fd02::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 447D7C06174A; Tue, 11 Aug 2020 07:36:11 -0700 (PDT) Received: from viro by ZenIV.linux.org.uk with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1k5VNo-00DcdI-VA; Tue, 11 Aug 2020 14:36:09 +0000 Date: Tue, 11 Aug 2020 15:36:08 +0100 From: Al Viro To: Tang Jiye Cc: Miklos Szeredi , linux-fsdevel@vger.kernel.org, David Howells , Linus Torvalds , Karel Zak , Jeff Layton , Miklos Szeredi , Nicolas Dichtel , Christian Brauner , Lennart Poettering , Linux API , Ian Kent , LSM , linux-kernel@vger.kernel.org Subject: Re: file metadata via fs API (was: [GIT PULL] Filesystem Information) Message-ID: <20200811143608.GJ1236603@ZenIV.linux.org.uk> References: <1845353.1596469795@warthog.procyon.org.uk> <20200811135419.GA1263716@miu.piliscsaba.redhat.com> <20200811140833.GH1236603@ZenIV.linux.org.uk> <20200811143107.GI1236603@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Aug 11, 2020 at 10:33:59AM -0400, Tang Jiye wrote: > anyone knows how to post a question? Generally the way you just have, except that you generally put it *after* the relevant parts of the quoted text (and removes the irrelevant ones).