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=-5.2 required=3.0 tests=BAYES_00, 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 2ED9AC4743C for ; Mon, 21 Jun 2021 14:00:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F261B61245 for ; Mon, 21 Jun 2021 14:00:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229790AbhFUOCP (ORCPT ); Mon, 21 Jun 2021 10:02:15 -0400 Received: from verein.lst.de ([213.95.11.211]:42088 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229747AbhFUOCP (ORCPT ); Mon, 21 Jun 2021 10:02:15 -0400 Received: by verein.lst.de (Postfix, from userid 2407) id E305068B05; Mon, 21 Jun 2021 15:59:58 +0200 (CEST) Date: Mon, 21 Jun 2021 15:59:58 +0200 From: Christoph Hellwig To: Al Viro Cc: linux-fsdevel@vger.kernel.org, Christoph Hellwig , Jens Axboe Subject: Re: [RFC] what to do with IOCB_DSYNC? Message-ID: <20210621135958.GA1013@lst.de> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org What about just setting O_DSYNC in f_flags at open time if a superblock has SB_SYNCHRONOUS set? That means the flag won't be picked up for open files when SB_SYNCHRONOUS is set at remount time, but I'm not even sure we need to support it for remount.