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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 CE992EB64D9 for ; Thu, 6 Jul 2023 14:55:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=fhykVYOZkzlXT4yh75rGeCVJ3cPkDr5sjhaxZXHjD+c=; b=sCD/hR9Qr2xe4ecb3cr/alBR8X qU10keP6mgwqvfEzH/YBScCreeXmrF+DMSxpAn+A3Pr3CDkP03bv3HgPwLIyRoZErR3eGsMPe76BA ADoVVapnOSr+C7Y+RuOrKN1UwRmUI/kGx+kSpTgBPidrAMFZRXoWM/0ol88Ncdyce4CiBakylr+Cq JlRq7A06jwmn3xIl7FY33cORhx1vwifIbMBCcSQz5s1TnBPmLUVdbvmr4CcjjQ41Li+fyjL9Xtq1P FkiW69Rtg8m4oQKK566t86QS8V0mkTZlxPnvyWXR86Y9ij7Ou93iihlXovLcSgxFDxSrwYerjy+Pa Cv49E1jA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qHQOJ-001w3N-22; Thu, 06 Jul 2023 14:55:31 +0000 Received: from hch by bombadil.infradead.org with local (Exim 4.96 #2 (Red Hat Linux)) id 1qHQNf-001vuf-2T; Thu, 06 Jul 2023 14:54:51 +0000 Date: Thu, 6 Jul 2023 07:54:51 -0700 From: Christoph Hellwig To: Jan Kara Cc: linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, Jens Axboe , Christoph Hellwig , Alasdair Kergon , Andrew Morton , Anna Schumaker , Chao Yu , Christian Borntraeger , "Darrick J. Wong" , Dave Kleikamp , David Sterba , dm-devel@redhat.com, drbd-dev@lists.linbit.com, Gao Xiang , Jack Wang , Jaegeuk Kim , jfs-discussion@lists.sourceforge.net, Joern Engel , Joseph Qi , Kent Overstreet , linux-bcache@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-mm@kvack.org, linux-mtd@lists.infradead.org, linux-nfs@vger.kernel.org, linux-nilfs@vger.kernel.org, linux-nvme@lists.infradead.org, linux-pm@vger.kernel.org, linux-raid@vger.kernel.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, linux-xfs@vger.kernel.org, "Md. Haris Iqbal" , Mike Snitzer , Minchan Kim , ocfs2-devel@oss.oracle.com, reiserfs-devel@vger.kernel.org, Sergey Senozhatsky , Song Liu , Sven Schnelle , target-devel@vger.kernel.org, Ted Tso , Trond Myklebust , xen-devel@lists.xenproject.org Subject: Re: [PATCH RFC 0/32] block: Make blkdev_get_by_*() return handle Message-ID: References: <20230629165206.383-1-jack@suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230629165206.383-1-jack@suse.cz> X-Mailman-Approved-At: Thu, 06 Jul 2023 07:55:29 -0700 X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Tue, Jul 04, 2023 at 02:21:27PM +0200, Jan Kara wrote: > Hello, > > this patch series implements the idea of blkdev_get_by_*() calls returning > bdev_handle which is then passed to blkdev_put() [1]. This makes the get > and put calls for bdevs more obviously matching and allows us to propagate > context from get to put without having to modify all the users (again!). > In particular I need to propagate used open flags to blkdev_put() to be able > count writeable opens and add support for blocking writes to mounted block > devices. I'll send that series separately. > > The series is based on Linus' tree as of yesterday + two bcache fixes which are > in the block tree. Patches have passed some basic testing, I plan to test more > users once we agree this is the right way to go. Can you post a link to a git branch for this and the follow up series? Especially with a fairly unstable base it's kinda hard to look at the result otherwise.