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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham 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 80EE0C43460 for ; Mon, 10 May 2021 10:37:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 53A54619AE for ; Mon, 10 May 2021 10:37:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230444AbhEJKiE (ORCPT ); Mon, 10 May 2021 06:38:04 -0400 Received: from mail.kernel.org ([198.145.29.99]:41148 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232008AbhEJKf5 (ORCPT ); Mon, 10 May 2021 06:35:57 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 260706193D; Mon, 10 May 2021 10:29:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620642546; bh=j+yJxaDaNg+0dsAfuh4blpsx95zm7XMjaysqroZ6ZpI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fuXQJJAXhEmv1MBIkYtnB0yI0IONwl5tGIR7FKLcGAlZy2HBGigzc/7twQDV6l9iI SYg+pE+NJomf9MjtJ81gdycOF4L3QOlgapjChfe+yKXWPTxVM/ObcC6jj3JprZufnX 7rpLx7+lfGC3+6Hpl4ewU43Ckd6n0Y2/BKnYHDPo= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Guochun Mao , Richard Weinberger Subject: [PATCH 5.4 139/184] ubifs: Only check replay with inode type to judge if inode linked Date: Mon, 10 May 2021 12:20:33 +0200 Message-Id: <20210510101954.704669590@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210510101950.200777181@linuxfoundation.org> References: <20210510101950.200777181@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Guochun Mao commit 3e903315790baf4a966436e7f32e9c97864570ac upstream. Conside the following case, it just write a big file into flash, when complete writing, delete the file, and then power off promptly. Next time power on, we'll get a replay list like: ... LEB 1105:211344 len 4144 deletion 0 sqnum 428783 key type 1 inode 80 LEB 15:233544 len 160 deletion 1 sqnum 428785 key type 0 inode 80 LEB 1105:215488 len 4144 deletion 0 sqnum 428787 key type 1 inode 80 ... In the replay list, data nodes' deletion are 0, and the inode node's deletion is 1. In current logic, the file's dentry will be removed, but inode and the flash space it occupied will be reserved. User will see that much free space been disappeared. We only need to check the deletion value of the following inode type node of the replay entry. Fixes: e58725d51fa8 ("ubifs: Handle re-linking of inodes correctly while recovery") Cc: stable@vger.kernel.org Signed-off-by: Guochun Mao Signed-off-by: Richard Weinberger Signed-off-by: Greg Kroah-Hartman --- fs/ubifs/replay.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/fs/ubifs/replay.c +++ b/fs/ubifs/replay.c @@ -223,7 +223,8 @@ static bool inode_still_linked(struct ub */ list_for_each_entry_reverse(r, &c->replay_list, list) { ubifs_assert(c, r->sqnum >= rino->sqnum); - if (key_inum(c, &r->key) == key_inum(c, &rino->key)) + if (key_inum(c, &r->key) == key_inum(c, &rino->key) && + key_type(c, &r->key) == UBIFS_INO_KEY) return r->deletion == 0; }