From patchwork Fri Jan 26 08:35:05 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Su Yue X-Patchwork-Id: 10185281 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 8800C603ED for ; Fri, 26 Jan 2018 08:30:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7590929045 for ; Fri, 26 Jan 2018 08:30:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6AA2E290F3; Fri, 26 Jan 2018 08:30:58 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0DC94290EB for ; Fri, 26 Jan 2018 08:30:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752448AbeAZIaz (ORCPT ); Fri, 26 Jan 2018 03:30:55 -0500 Received: from mail.cn.fujitsu.com ([183.91.158.132]:34399 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752400AbeAZIaw (ORCPT ); Fri, 26 Jan 2018 03:30:52 -0500 X-IronPort-AV: E=Sophos;i="5.43,368,1503331200"; d="scan'208";a="36018037" Received: from bogon (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 26 Jan 2018 16:30:47 +0800 Received: from G08CNEXCHPEKD03.g08.fujitsu.local (unknown [10.167.33.85]) by cn.fujitsu.com (Postfix) with ESMTP id 6F87A49F19B1 for ; Fri, 26 Jan 2018 16:30:45 +0800 (CST) Received: from archlinux.g08.fujitsu.local (10.167.226.31) by G08CNEXCHPEKD03.g08.fujitsu.local (10.167.33.89) with Microsoft SMTP Server (TLS) id 14.3.361.1; Fri, 26 Jan 2018 16:30:44 +0800 From: Su Yue To: CC: Subject: [PATCH 01/15] btrfs-progs: lowmem check: introduce repair_inode_item_mismatch() Date: Fri, 26 Jan 2018 16:35:05 +0800 Message-ID: <20180126083519.28373-2-suy.fnst@cn.fujitsu.com> X-Mailer: git-send-email 2.16.1 In-Reply-To: <20180126083519.28373-1-suy.fnst@cn.fujitsu.com> References: <20180126083519.28373-1-suy.fnst@cn.fujitsu.com> MIME-Version: 1.0 X-Originating-IP: [10.167.226.31] X-yoursite-MailScanner-ID: 6F87A49F19B1.ABA56 X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: suy.fnst@cn.fujitsu.com Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP New function repair_inode_item_mismatch() only changes inode item' filetype. Signed-off-by: Su Yue --- cmds-check.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) diff --git a/cmds-check.c b/cmds-check.c index f302724dd840..e3505a7f9d6b 100644 --- a/cmds-check.c +++ b/cmds-check.c @@ -4913,6 +4913,58 @@ static void print_inode_ref_err(struct btrfs_root *root, struct btrfs_key *key, namebuf, filetype); } +/* + * Change inode mode. + * + * Returns 0 means success. + * Returns <0 means error. + */ +static int repair_inode_item_mismatch(struct btrfs_root *root, u64 ino, + u8 filetype) +{ + struct btrfs_key key; + struct btrfs_trans_handle *trans; + struct btrfs_path path; + struct btrfs_inode_item *ii; + u32 mode; + int ret; + + key.objectid = ino; + key.type = BTRFS_INODE_ITEM_KEY; + key.offset = 0; + + btrfs_init_path(&path); + trans = btrfs_start_transaction(root, 1); + if (IS_ERR(trans)) { + ret = -EIO; + goto out; + } + + ret = btrfs_search_slot(trans, root, &key, &path, 0, 1); + if (ret > 0) + ret = -ENOENT; + if (ret) + goto fail; + + ii = btrfs_item_ptr(path.nodes[0], path.slots[0], + struct btrfs_inode_item); + mode = btrfs_inode_mode(path.nodes[0], ii); + mode &= ~S_IFMT; + mode |= btrfs_type_to_imode(filetype); + + btrfs_set_inode_mode(path.nodes[0], ii, mode); + btrfs_mark_buffer_dirty(path.nodes[0]); + ret = 0; +fail: + btrfs_commit_transaction(trans, root); +out: + btrfs_release_path(&path); + if (ret) + error("failed to repair root %llu INODE ITEM[%llu] MISMATCH", + root->objectid, ino); + return ret; +} + /* * Insert the missing inode item. *