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.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 0CF51C3DA6E for ; Fri, 5 Jan 2024 06:10:51 +0000 (UTC) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=VzS7OQo0; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4T5tP523zLz3cS3 for ; Fri, 5 Jan 2024 17:10:49 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=VzS7OQo0; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=bombadil.srs.infradead.org (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org; envelope-from=batv+47ea59da63ebb99efca2+7439+infradead.org+hch@bombadil.srs.infradead.org; receiver=lists.ozlabs.org) Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4T5tNy3GPYz2yq4 for ; Fri, 5 Jan 2024 17:10:42 +1100 (AEDT) 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=dSHA2/+sx7Ginf1zZQjwMoxOOLN3aAKl+o5J049zcoQ=; b=VzS7OQo05vKzjkbMgtDbyoqlq1 xMjqJoHMrYZx0z8X2pzLagECzGMwlohl9ymKqBvvmtpDIlsWY6AG4N/f1Z7a0npjBNyE4ZwknljfO Adoqi4XTmVgFGXh4zBStmNMnqV7aBBtXocYkaX6HML2N7/QqnRhhdS2TWAoeezhinIAaanN7Ej7dv hxVnm2Vk5habqISRNzPmh9q8JmfV7hW/bJTp3S/nkUAXM07TMl3K+hndw/tt6Sa2uemEb90WWvc6e e9D7SiAdy2v6KE4fIeq1gb230I0mhq6ROH5a4jotGgz0Zrj+acjX4nO0JO/pnPZhJ1+dxysUg9Aw0 JvaSlTvg==; Received: from hch by bombadil.infradead.org with local (Exim 4.96 #2 (Red Hat Linux)) id 1rLdPN-00G2Yc-1R; Fri, 05 Jan 2024 06:10:17 +0000 Date: Thu, 4 Jan 2024 22:10:17 -0800 From: Christoph Hellwig To: Jan Kara Subject: Re: [PATCH RFC v3 for-6.8/block 04/17] mtd: block2mtd: use bdev apis Message-ID: References: <20231221085712.1766333-1-yukuai1@huaweicloud.com> <20231221085712.1766333-5-yukuai1@huaweicloud.com> <20240104112855.uci45hhqaiitmsir@quack3> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240104112855.uci45hhqaiitmsir@quack3> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-BeenThere: linux-erofs@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development of Linux EROFS file system List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: hoeppner@linux.ibm.com, vigneshr@ti.com, yi.zhang@huawei.com, clm@fb.com, adilger.kernel@dilger.ca, miquel.raynal@bootlin.com, agordeev@linux.ibm.com, linux-s390@vger.kernel.org, linux-nilfs@vger.kernel.org, linux-scsi@vger.kernel.org, richard@nod.at, willy@infradead.org, linux-bcachefs@vger.kernel.org, xen-devel@lists.xenproject.org, linux-ext4@vger.kernel.org, Yu Kuai , jejb@linux.ibm.com, p.raghav@samsung.com, gor@linux.ibm.com, hca@linux.ibm.com, joern@lazybastard.org, josef@toxicpanda.com, colyli@suse.de, linux-block@vger.kernel.org, linux-bcache@vger.kernel.org, viro@zeniv.linux.org.uk, yukuai3@huawei.com, dsterba@suse.com, konishi.ryusuke@gmail.com, axboe@kernel.dk, brauner@kernel.org, tytso@mit.edu, martin.petersen@oracle.com, nico@fluxnic.net, yangerkun@huawei.com, linux-kernel@vger.kernel.org, kent.overstreet@gmail.com, hare@suse.de, jack@suse.com, linux-fsdevel@vger.kernel.org, linux-mtd@lists.infradead.org, akpm@linux-foundation.org, roger.pau @citrix.com, linux-erofs@lists.ozlabs.org, linux-btrfs@vger.kernel.org, sth@linux.ibm.com Errors-To: linux-erofs-bounces+linux-erofs=archiver.kernel.org@lists.ozlabs.org Sender: "Linux-erofs" On Thu, Jan 04, 2024 at 12:28:55PM +0100, Jan Kara wrote: > What do you think? Because when we are working with the folios it is rather > natural to use their mapping for dirty balancing? The real problem is that block2mtd pokes way to deep into block internals. I think the saviour here is Christians series to replace the bdev handle with a struct file, which will allow to use the normal file write path here and get rid of the entire layering volation.