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 Received: from lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5829CC6FD1D for ; Mon, 20 Mar 2023 13:42:26 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-2.v29.lw.sourceforge.com) by sfs-ml-2.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1peFmI-0001nG-T6; Mon, 20 Mar 2023 13:42:23 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-2.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1peFmG-0001n6-LP for linux-f2fs-devel@lists.sourceforge.net; Mon, 20 Mar 2023 13:42:21 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=In-Reply-To:Content-Type:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=4nvdeTrbCGVI17LJ6CL04s20971xhX1bwQsBRYlV8qE=; b=Xn+RXv/iPAkugp7h2kj6idhRqR 9ZI1FWZm8SuTfFxqL/+prV2Um4VVjrebAZRgvbPgbiiFEgdjZZqV58DF+os8GdK54plyPu+0MmhB6 GZdVVxpn0uaEqzP0m9TErp8eEBTMyxWG/8vWVeu4eZddCoVw8tFvk9Tb3xWV3rqOIrAE=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To :From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=4nvdeTrbCGVI17LJ6CL04s20971xhX1bwQsBRYlV8qE=; b=FFK+pj8a83bncvTAnThyGKsyeb 9QUbFiAPvLt5YIvmtfveyFnr8SNdsVlm1L+XQ3jHSwtDPWPij8PArg//GexO0Aufc63hvQqQRFbxA 08ORrN6Ij9P3WZ5sD9ICSaK13R6xslTmLixUrHPL8PeMx9PDMZnxhibhOYlPyIs08LTc=; Received: from bombadil.infradead.org ([198.137.202.133]) by sfi-mx-1.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1peFmE-00EJHt-Vd for linux-f2fs-devel@lists.sourceforge.net; Mon, 20 Mar 2023 13:42:19 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=4nvdeTrbCGVI17LJ6CL04s20971xhX1bwQsBRYlV8qE=; b=n82AssvJ7n/9KqIF/sa0wF812L 9iiP4WXFSqISNg/zwvDmPWd8CNQCTSb8E1t+lQwmFM9nafJiSPJyKq6XGVUUp0qWZ4lryMGehnaVE vC50fFwTZcIJg4y/pKgzJEcxKVtFMtehC6YclcoeCNcPL87wNwWZQXK1y7DA/RR9XbJZXJKOzR07Q EIuz4NBLXDNKeR4s5k6DCqHjoEM8W5cWB0CjfzeYHspRie+huHaTLJQ09IRoUUIOGSSCjbmjWaT/z 7rjEsy5r7eU3isCXXjahi+g8LwT7337U0vN44M9VeArzieqET283zDbvLZSE4EYE4d4EmFdGN1usa 8qCB1wSw==; Received: from hch by bombadil.infradead.org with local (Exim 4.96 #2 (Red Hat Linux)) id 1peFm4-009DTd-0d; Mon, 20 Mar 2023 13:42:08 +0000 Date: Mon, 20 Mar 2023 06:42:08 -0700 From: Christoph Hellwig To: Hans Holmberg Message-ID: References: <20230220122004.26555-1-hans.holmberg@wdc.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20230220122004.26555-1-hans.holmberg@wdc.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-Headers-End: 1peFmE-00EJHt-Vd Subject: Re: [f2fs-dev] [RFC PATCH] f2fs: preserve direct write semantics when buffering is forced X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: damien.lemoal@wdc.com, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, Jaegeuk Kim Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net On Mon, Feb 20, 2023 at 01:20:04PM +0100, Hans Holmberg wrote: > A) Supporting proper direct writes for zoned block devices would > be the best, but it is currently not supported (probably for > a good but non-obvious reason). Would it be feasible to > implement proper direct IO? I don't think why not. In many ways direct writes to zoned devices should be easier than non-direct writes. Any comments from the maintainers why the direct I/O writes to zoned devices are disabled? I could not find anything helpful in the comments or commit logs. _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel