From patchwork Tue Sep 24 13:23:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ian Kent X-Patchwork-Id: 11158803 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 D8E9514ED for ; Tue, 24 Sep 2019 13:23:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C1CB62168B for ; Tue, 24 Sep 2019 13:23:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2632729AbfIXNXM (ORCPT ); Tue, 24 Sep 2019 09:23:12 -0400 Received: from icp-osb-irony-out7.external.iinet.net.au ([203.59.1.107]:5979 "EHLO icp-osb-irony-out7.external.iinet.net.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2505051AbfIXNXM (ORCPT ); Tue, 24 Sep 2019 09:23:12 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2BmAAA1GIpd/9+j0HYNWBwBAQEEAQEMBAEBgVYEAQELAYQ5hCKPWQEBAQEBAQaBEYoahR+MCQkBAQEBAQEBAQE3AQGEOgMCAoNENwYOAgwBAQEEAQEBAQEFAwGFWIYZAgEDIwRSEBgNAiYCAkcQBhOFGa0Tc38zGoo0gQwoAYFiij54gQeBRIMdhDCDH4JYBI9WhixClkiCLJUlDI4HA4sPLYQGpQyBek0uCoMnUIF+F44vZopSglMBAQ X-IPAS-Result: A2BmAAA1GIpd/9+j0HYNWBwBAQEEAQEMBAEBgVYEAQELAYQ5hCKPWQEBAQEBAQaBEYoahR+MCQkBAQEBAQEBAQE3AQGEOgMCAoNENwYOAgwBAQEEAQEBAQEFAwGFWIYZAgEDIwRSEBgNAiYCAkcQBhOFGa0Tc38zGoo0gQwoAYFiij54gQeBRIMdhDCDH4JYBI9WhixClkiCLJUlDI4HA4sPLYQGpQyBek0uCoMnUIF+F44vZopSglMBAQ X-IronPort-AV: E=Sophos;i="5.64,544,1559491200"; d="scan'208";a="205615220" Received: from unknown (HELO [192.168.1.222]) ([118.208.163.223]) by icp-osb-irony-out7.iinet.net.au with ESMTP; 24 Sep 2019 21:23:10 +0800 Subject: [REPOST PATCH v3 13/16] xfs: mount-api - add xfs_fc_free() From: Ian Kent To: linux-xfs Cc: David Howells , Dave Chinner , Al Viro , Eric Sandeen Date: Tue, 24 Sep 2019 21:23:09 +0800 Message-ID: <156933138994.20933.13243420107808961029.stgit@fedora-28> In-Reply-To: <156933112949.20933.12761540130806431294.stgit@fedora-28> References: <156933112949.20933.12761540130806431294.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 | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index e7627f7ca7f2..5bc2363269a9 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -2157,10 +2157,37 @@ 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 success the mount info struct, mp, is moved into + * private info super block 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 in addition + * to the mount context working storage. + */ + 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 = {