From patchwork Thu Oct 3 10:26:32 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ian Kent X-Patchwork-Id: 11172469 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E2BB413BD for ; Thu, 3 Oct 2019 10:26:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C058821A4C for ; Thu, 3 Oct 2019 10:26:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729094AbfJCK0e (ORCPT ); Thu, 3 Oct 2019 06:26:34 -0400 Received: from icp-osb-irony-out7.external.iinet.net.au ([203.59.1.107]:43057 "EHLO icp-osb-irony-out7.external.iinet.net.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727657AbfJCK0e (ORCPT ); Thu, 3 Oct 2019 06:26:34 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2AVAADHy5Vd/7q70HYNWRwBAQEEAQEMBAEBgVMHAQELAYQ5hCKIIocIAwaBEYoajzGBewkBAQEBAQEBAQE3AQGEOwMCAoJoNAkOAgwBAQEEAQEBAQEFAwGFWIYaAgEDIwRSEBgNAiYCAkcQBhOFGa4MdX8zGoongQwoAYFkikF4gQeBRIMdhDCDIYJYBI8wN4Y5Q5ZUgi2VMwyOEwOLHC2ECqUdghFNLgqDJ1CBfxeOMGeOSIJTAQE X-IPAS-Result: A2AVAADHy5Vd/7q70HYNWRwBAQEEAQEMBAEBgVMHAQELAYQ5hCKIIocIAwaBEYoajzGBewkBAQEBAQEBAQE3AQGEOwMCAoJoNAkOAgwBAQEEAQEBAQEFAwGFWIYaAgEDIwRSEBgNAiYCAkcQBhOFGa4MdX8zGoongQwoAYFkikF4gQeBRIMdhDCDIYJYBI8wN4Y5Q5ZUgi2VMwyOEwOLHC2ECqUdghFNLgqDJ1CBfxeOMGeOSIJTAQE X-IronPort-AV: E=Sophos;i="5.67,251,1566835200"; d="scan'208";a="207652939" Received: from unknown (HELO [192.168.1.222]) ([118.208.187.186]) by icp-osb-irony-out7.iinet.net.au with ESMTP; 03 Oct 2019 18:26:33 +0800 Subject: [PATCH v4 14/17] xfs: mount-api - add xfs_fc_free() From: Ian Kent To: linux-xfs Cc: Brian Foster , Eric Sandeen , David Howells , Dave Chinner , Al Viro Date: Thu, 03 Oct 2019 18:26:32 +0800 Message-ID: <157009839296.13858.9863401564865806171.stgit@fedora-28> In-Reply-To: <157009817203.13858.7783767645177567968.stgit@fedora-28> References: <157009817203.13858.7783767645177567968.stgit@fedora-28> User-Agent: StGit/unknown-version MIME-Version: 1.0 Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org Add the fs_context_operations method .free that performs fs context cleanup on context release. Signed-off-by: Ian Kent --- fs/xfs/xfs_super.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 06f650fb3a8c..4f2963ff9e06 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -2133,10 +2133,36 @@ static const struct super_operations xfs_super_operations = { .free_cached_objects = xfs_fs_free_cached_objects, }; +static void xfs_fc_free(struct fs_context *fc) +{ + struct xfs_fs_context *ctx = fc->fs_private; + struct xfs_mount *mp = fc->s_fs_info; + + /* + * When the mount context is initialized the private + * struct xfs_mount info (mp) is allocated and stored in + * the fs context along with the struct xfs_fs_context + * (ctx) mount context working working storage. + * + * On super block allocation the mount info struct, mp, + * is moved into private super block info field ->s_fs_info + * of the newly allocated super block. But if an error occurs + * before this happens it's the responsibility of the fs + * context to release the mount info struct. + */ + if (mp) { + kfree(mp->m_logname); + kfree(mp->m_rtname); + kfree(mp); + } + kfree(ctx); +} + static const struct fs_context_operations xfs_context_ops = { .parse_param = xfs_parse_param, .get_tree = xfs_get_tree, .reconfigure = xfs_reconfigure, + .free = xfs_fc_free, }; static struct file_system_type xfs_fs_type = {