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[2620:137:e000::1:20]) by mx.google.com with ESMTP id e5-20020a656885000000b0051f045555b6si1904451pgt.601.2023.04.20.09.30.36; Thu, 20 Apr 2023 09:30:51 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-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=fail header.i=@mit.edu header.s=outgoing header.b=gf0I9gLV; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=mit.edu Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231687AbjDTQWq (ORCPT + 99 others); Thu, 20 Apr 2023 12:22:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42842 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231435AbjDTQWo (ORCPT ); Thu, 20 Apr 2023 12:22:44 -0400 Received: from outgoing.mit.edu (outgoing-auth-1.mit.edu [18.9.28.11]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6A0A71BD3 for ; Thu, 20 Apr 2023 09:22:26 -0700 (PDT) Received: from cwcc.thunk.org (pool-173-48-120-46.bstnma.fios.verizon.net [173.48.120.46]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 33KGLndo022424 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 20 Apr 2023 12:21:51 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mit.edu; s=outgoing; t=1682007713; bh=P55Ye25BDJCTcXLNroTjSNzxxGD0p5Uoc9h9dHTaUKI=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=gf0I9gLVKvEwyJg8K5OK1SL6nKdfR+wRkceYLvWkMK9kqAeUP9PTV26fXq6nw0x+y DqKX7NFuYE+d5u0UPimEfsoy+kBDxDBjzJgZu0ofv8YgTdyuW+N4e6iIAl9vCd9Sry pcHHK5EPD7qba03M1Si/N5hmet6jtSwXfvjwBhD24jYT0vZKQhH1iw77Jm3vJoBLkI SmPxfhRFTIQ/AR/q0yl8uDeuj3EL2MtZoCsNw4nRR6acViwDGk3atIe3k/84Xb26QE SNXHjGnN2Z1DYcF5SLdfAGmq4m+PXJiUut7pfiKdqQuEu4DaKM31foyoD7FvFf5nFK 5NdH/n0aOY0IA== Received: by cwcc.thunk.org (Postfix, from userid 15806) id 1A41B15C3AC2; Tue, 18 Apr 2023 14:02:02 -0400 (EDT) Date: Tue, 18 Apr 2023 14:02:02 -0400 From: "Theodore Ts'o" To: Christian Brauner Cc: Joseph Qi , Mark Fasheh , Joel Becker , Arnd Bergmann , akpm , Arnd Bergmann , ocfs2-devel , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] ocfs2: reduce ioctl stack usage Message-ID: <20230418180202.GA602488@mit.edu> References: <20230417205631.1956027-1-arnd@kernel.org> <20230418-fortgehen-inkubationszeit-5d3db3f0c2b1@brauner> <7555eaf9-b195-5189-3928-c7292e4a0ba5@linux.alibaba.com> <20230418-vielmehr-nominieren-7f2adb0f6703@brauner> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230418-vielmehr-nominieren-7f2adb0f6703@brauner> X-Spam-Status: No, score=-2.7 required=5.0 tests=BAYES_00,DATE_IN_PAST_24_48, DKIM_INVALID,DKIM_SIGNED,RCVD_IN_DNSWL_MED,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-kernel@vger.kernel.org On Tue, Apr 18, 2023 at 02:56:38PM +0200, Christian Brauner wrote: > On Tue, Apr 18, 2023 at 05:37:06PM +0800, Joseph Qi wrote: > > Andrew picked ocfs2 patches into -mm tree before. > > Yup and that's fine obviously, but this belongs to fs/ and we're aiming > to take fs/ stuff through the dedicated fs trees going forward. The challenge here is that there isn't an active ocfs2 tree at the moment (git/jlbec/ocfs2.git was last updated 11 years ago), and it's not clear ocfs2 has an active maintainer, although as discussed at a recent ext4 telechat, there still are some enterprise users of it hanging on. We're starting considering changes to fs/jbd2 so we can get off of using the struct bh for jbd2 (still very early days; it's more in the early concept brain-storming stage.) And since ocfs2 also uses fs/jbd2, the fact that ocfs2 isn't under active maintenance is going to be more of a challenge moving forward. Something we should discuss in the hallway track of LSF/MM, perhaps... - Ted