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[2620:137:e000::1:20]) by mx.google.com with ESMTP id pg3-20020a17090b1e0300b00268122b5e44si223116pjb.134.2023.08.03.09.04.12; Thu, 03 Aug 2023 09:04:46 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@mit.edu header.s=outgoing header.b=OXFtXbrH; spf=pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=mit.edu Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235711AbjHCOTp (ORCPT + 99 others); Thu, 3 Aug 2023 10:19:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36100 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235562AbjHCOTp (ORCPT ); Thu, 3 Aug 2023 10:19:45 -0400 Received: from outgoing.mit.edu (outgoing-auth-1.mit.edu [18.9.28.11]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EF756DA for ; Thu, 3 Aug 2023 07:19:43 -0700 (PDT) Received: from cwcc.thunk.org (pool-173-48-112-100.bstnma.fios.verizon.net [173.48.112.100]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 373EJZiX032677 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 3 Aug 2023 10:19:37 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mit.edu; s=outgoing; t=1691072378; bh=u4qHYJE09OQX4SslI8PJB7iPS5V/V9gm5lYUAJt9N6k=; h=Date:From:Subject:Message-ID:MIME-Version:Content-Type; b=OXFtXbrHOTCjpsVqNAYiU9LyaKF4ubW5qdOU7GRoW1XJVquHUB1bKIsxg+ev5q2Ou rAik2WQdcYVV6Kn7orlC4J9zlaVvHoe/yBDf2h77+WIpjE8+GKrrJ3lSUrxjLyfkUP oR9HAUL65ah6/LLTloEU+446u5hc3SHAwxiKGX+PTbhmQcijFCizj+gFk7fkFHybB2 W8GYQIhH1p465sJdule/PJpNSBVwTYSE0/NcR1MeeIMBjwIkHkjDr6CNK0SmHnJyPI ZYbOhKWfgUzNJGe205v6vdDZUhIIUrCexIbpPyri+kVBr+vh4VLu3/PBjkMX/Hgm5I +ehBz1L7G5RWQ== Received: by cwcc.thunk.org (Postfix, from userid 15806) id A4F6815C04F1; Thu, 3 Aug 2023 10:19:35 -0400 (EDT) Date: Thu, 3 Aug 2023 10:19:35 -0400 From: "Theodore Ts'o" To: Jeff Layton Cc: linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org Subject: Re: [PATCH v6 6/7] ext4: switch to multigrain timestamps Message-ID: <20230803141935.GA1054657@mit.edu> References: <20230725-mgctime-v6-0-a794c2b7abca@kernel.org> <20230725-mgctime-v6-6-a794c2b7abca@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230725-mgctime-v6-6-a794c2b7abca@kernel.org> X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On Tue, Jul 25, 2023 at 10:58:19AM -0400, Jeff Layton wrote: > Enable multigrain timestamps, which should ensure that there is an > apparent change to the timestamp whenever it has been written after > being actively observed via getattr. > > For ext4, we only need to enable the FS_MGTIME flag. > > Signed-off-by: Jeff Layton Acked-by: Theodore Ts'o