From patchwork Tue Aug 8 16:15:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13346949 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D0775C04A6A for ; Tue, 8 Aug 2023 19:58:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234375AbjHHT6p (ORCPT ); Tue, 8 Aug 2023 15:58:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46360 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234263AbjHHT63 (ORCPT ); Tue, 8 Aug 2023 15:58:29 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C74A61D45C; Tue, 8 Aug 2023 11:13:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=Ag0DC0GVA6ZWEFo+6KWBzeM9QEWvQfau0HnuIyRPxDg=; b=wBNIFpZ92lh5UtJct7aTxUWk96 ahDDuEuWFJq+4Zn0AJsu7/RVh69PqBlhV6tugDciKSVCj3EFXjeWGpEAXOJ/NG2M0eFTvPxQU9CSc XOz2eSjNLzd0MtWB+yDjEauFH78iiHc8TSGWTb0gVG7buVFpr4/Cn7DYLJqZDlYRDU8tB3hnUwfmM XhDcEKymhAXQuHkt2oqWoflDfkG9ZdVYwNmHDMejua0lc9EvGOglOKcV8XHPf5IpIqMsoe+j8VchW ixFg0BOKpFJfE2zCyZtAvPU8MTls08mUAWgDPDXL67v+meZRnBnzLCf3eM3kymJhIqwzSmD31TU8o nzvdj4TA==; Received: from [4.28.11.157] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1qTPNK-002vd4-1C; Tue, 08 Aug 2023 16:16:02 +0000 From: Christoph Hellwig To: Al Viro , Christian Brauner Cc: Namjae Jeon , Sungjong Seo , "Theodore Ts'o" , Andreas Dilger , Konstantin Komarov , "Darrick J. Wong" , linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, ntfs3@lists.linux.dev, linux-xfs@vger.kernel.org Subject: [PATCH 03/13] xfs: free the mount in ->kill_sb Date: Tue, 8 Aug 2023 09:15:50 -0700 Message-Id: <20230808161600.1099516-4-hch@lst.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230808161600.1099516-1-hch@lst.de> References: <20230808161600.1099516-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org As a rule of thumb everything allocated to the fs_context and moved into the super_block should be freed by ->kill_sb so that the teardown handling doesn't need to be duplicated between the fill_super error path and put_super. Implement a XFS-specific kill_sb method to do that. Signed-off-by: Christoph Hellwig Reviewed-by: Christian Brauner Reviewed-by: Darrick J. Wong --- fs/xfs/xfs_super.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 128f4a2924d49c..d2f3ae6ba8938b 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1143,9 +1143,6 @@ xfs_fs_put_super( xfs_destroy_percpu_counters(mp); xfs_destroy_mount_workqueues(mp); xfs_close_devices(mp); - - sb->s_fs_info = NULL; - xfs_mount_free(mp); } static long @@ -1487,7 +1484,7 @@ xfs_fs_fill_super( error = xfs_fs_validate_params(mp); if (error) - goto out_free_names; + return error; sb_min_blocksize(sb, BBSIZE); sb->s_xattr = xfs_xattr_handlers; @@ -1514,7 +1511,7 @@ xfs_fs_fill_super( error = xfs_open_devices(mp); if (error) - goto out_free_names; + return error; error = xfs_init_mount_workqueues(mp); if (error) @@ -1734,9 +1731,6 @@ xfs_fs_fill_super( xfs_destroy_mount_workqueues(mp); out_close_devices: xfs_close_devices(mp); - out_free_names: - sb->s_fs_info = NULL; - xfs_mount_free(mp); return error; out_unmount: @@ -1999,12 +1993,20 @@ static int xfs_init_fs_context( return 0; } +static void +xfs_kill_sb( + struct super_block *sb) +{ + kill_block_super(sb); + xfs_mount_free(XFS_M(sb)); +} + static struct file_system_type xfs_fs_type = { .owner = THIS_MODULE, .name = "xfs", .init_fs_context = xfs_init_fs_context, .parameters = xfs_fs_parameters, - .kill_sb = kill_block_super, + .kill_sb = xfs_kill_sb, .fs_flags = FS_REQUIRES_DEV | FS_ALLOW_IDMAP, }; MODULE_ALIAS_FS("xfs");