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=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS 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 5389DC2BBC7 for ; Tue, 14 Apr 2020 12:56:31 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 17C6E20787 for ; Tue, 14 Apr 2020 12:56:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="O+0/+J3q" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 17C6E20787 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id C30418E0003; Tue, 14 Apr 2020 08:56:30 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id BE1938E0001; Tue, 14 Apr 2020 08:56:30 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id AF7E48E0003; Tue, 14 Apr 2020 08:56:30 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0130.hostedemail.com [216.40.44.130]) by kanga.kvack.org (Postfix) with ESMTP id 9646B8E0001 for ; Tue, 14 Apr 2020 08:56:30 -0400 (EDT) Received: from smtpin24.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 50AB4180AD807 for ; Tue, 14 Apr 2020 12:56:30 +0000 (UTC) X-FDA: 76706459340.24.road82_900999af6e32b X-HE-Tag: road82_900999af6e32b X-Filterd-Recvd-Size: 5319 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf34.hostedemail.com (Postfix) with ESMTP for ; Tue, 14 Apr 2020 12:56:29 +0000 (UTC) Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 040772076D; Tue, 14 Apr 2020 12:56:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586868988; bh=cUsRBw4xRJcezB/ZRtjYiCyoUTShgzDF9QmHT/uunvY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=O+0/+J3q6IpztwhxEGT0OVnfIh3pCJ6dMzQN4HIku+0vphymoWpQOOM8ckygO7bvj tEo5/7yl4Jc4KVFc6uDRp76itFJ6WWgv+Y89NA119rqZSOnLZidaj8mNe2CoW6MsD9 WuhJF5efIRKL5VDTIVeF02sAYzd85r8Rx8V2Id0A= Date: Tue, 14 Apr 2020 14:56:26 +0200 From: Greg Kroah-Hartman To: Emanuele Giuseppe Esposito Cc: linux-nfs@vger.kernel.org, Paolo Bonzini , Jeremy Kerr , Arnd Bergmann , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Dennis Dalessandro , Mike Marciniszyn , Doug Ledford , Jason Gunthorpe , Frederic Barrat , Andrew Donnellan , Robert Richter , "Manoj N. Kumar" , "Matthew R. Ochs" , Uma Krishnan , "James E.J. Bottomley" , "Martin K. Petersen" , Felipe Balbi , Alexander Viro , Ian Kent , Joel Becker , Christoph Hellwig , "Rafael J. Wysocki" , Matthew Garrett , Ard Biesheuvel , Miklos Szeredi , Mike Kravetz , Mark Fasheh , Joseph Qi , Alexey Dobriyan , Luis Chamberlain , Kees Cook , Iurii Zaikin , Anton Vorontsov , Colin Cross , Tony Luck , Alexei Starovoitov , Daniel Borkmann , Martin KaFai Lau , Song Liu , Yonghong Song , Andrii Nakryiko , John Fastabend , KP Singh , Hugh Dickins , Andrew Morton , "J. Bruce Fields" , Chuck Lever , Trond Myklebust , Anna Schumaker , "David S. Miller" , Jakub Kicinski , James Morris , "Serge E. Hallyn" , John Johansen , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-rdma@vger.kernel.org, oprofile-list@lists.sf.net, linux-scsi@vger.kernel.org, linux-usb@vger.kernel.org, linux-fsdevel@vger.kernel.org, autofs@vger.kernel.org, linux-efi@vger.kernel.org, linux-mm@kvack.org, ocfs2-devel@oss.oracle.com, netdev@vger.kernel.org, bpf@vger.kernel.org, linux-security-module@vger.kernel.org Subject: Re: [PATCH 6/8] simplefs: add file creation functions Message-ID: <20200414125626.GC720679@kroah.com> References: <20200414124304.4470-1-eesposit@redhat.com> <20200414124304.4470-7-eesposit@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200414124304.4470-7-eesposit@redhat.com> X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Apr 14, 2020 at 02:43:00PM +0200, Emanuele Giuseppe Esposito wrote: > A bunch of code is duplicated between debugfs and tracefs, unify it to the > simplefs library. > > The code is very similar, except that dentry and inode creation are unified > into a single function (unlike start_creating in debugfs and tracefs, which > only takes care of dentries). This adds an output parameter to the creation > functions, but pushes all error recovery into fs/simplefs.c. > > Signed-off-by: Emanuele Giuseppe Esposito > --- > fs/simplefs.c | 150 +++++++++++++++++++++++++++++++++++++++ > include/linux/simplefs.h | 19 +++++ > 2 files changed, 169 insertions(+) What's wrong with libfs, isn't that supposed to be for these types of "common" filesystem interactions? Why create a whole "new" fs for this? thanks, greg k-h