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=-0.9 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 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 3AD64C43331 for ; Wed, 1 Apr 2020 07:39:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 037AD20772 for ; Wed, 1 Apr 2020 07:39:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="KGfthJc2" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731889AbgDAHjM (ORCPT ); Wed, 1 Apr 2020 03:39:12 -0400 Received: from us-smtp-2.mimecast.com ([205.139.110.61]:30348 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1731870AbgDAHjM (ORCPT ); Wed, 1 Apr 2020 03:39:12 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1585726751; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type; bh=6DBCWg11wd9ugzi5HHdFRKDsIzVlbKlyVJ5RvLmNdUs=; b=KGfthJc2nklgIwhYvVAucbzgwwwtW/vIk1vWWjZSaBYClYs80BnShPJxQwxtyNb6gNxKE8 XOI9R6c8Ed4Y0WP1odDsecwq5Heg5ymaRyUVIabOcD9fu+XucSgaban4jVjt/k/zQriWMW KrC0efFTSwlQS7/YmxI9N9zlwWlfjng= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-334-pZr1316LOJeYXx6wU0cW8A-1; Wed, 01 Apr 2020 03:39:10 -0400 X-MC-Unique: pZr1316LOJeYXx6wU0cW8A-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 1B5B5800D5B; Wed, 1 Apr 2020 07:39:09 +0000 (UTC) Received: from warthog.procyon.org.uk (ovpn-114-243.ams2.redhat.com [10.36.114.243]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2537219C6A; Wed, 1 Apr 2020 07:39:07 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells To: tytso@mit.edu cc: dhowells@redhat.com, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org Subject: Exporting ext4-specific information through fsinfo attributes MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <2461553.1585726747.1@warthog.procyon.org.uk> Date: Wed, 01 Apr 2020 08:39:07 +0100 Message-ID: <2461554.1585726747@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org Hi Ted, Whilst we were at Vault, I asked you if there was any live ext4 information that it could be useful to export through fsinfo(). I've implemented a patch that exports six superblock timestamps: FSINFO_ATTR_EXT4_TIMESTAMPS: mkfs : 2016-02-26 00:37:03 mount : 2020-03-31 21:57:30 write : 2020-03-31 21:57:28 fsck : 2018-12-17 23:32:45 1st-err : - last-err: - but is there anything else that could be of interest? Thanks, David