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=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED 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 0CA26C00449 for ; Thu, 4 Oct 2018 00:58:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8C6FE20856 for ; Thu, 4 Oct 2018 00:58:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8C6FE20856 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=cn.fujitsu.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-btrfs-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726426AbeJDHt3 (ORCPT ); Thu, 4 Oct 2018 03:49:29 -0400 Received: from mail.cn.fujitsu.com ([183.91.158.132]:40482 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726270AbeJDHt3 (ORCPT ); Thu, 4 Oct 2018 03:49:29 -0400 X-IronPort-AV: E=Sophos;i="5.43,368,1503331200"; d="scan'208";a="45651415" Received: from unknown (HELO cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 04 Oct 2018 08:58:39 +0800 Received: from G08CNEXCHPEKD01.g08.fujitsu.local (unknown [10.167.33.80]) by cn.fujitsu.com (Postfix) with ESMTP id A8C004B6ED5B; Thu, 4 Oct 2018 08:58:36 +0800 (CST) Received: from [10.167.226.24] (10.167.226.24) by G08CNEXCHPEKD01.g08.fujitsu.local (10.167.33.89) with Microsoft SMTP Server (TLS) id 14.3.408.0; Thu, 4 Oct 2018 08:58:43 +0800 Subject: Re: [PATCH 01/10] btrfs-progs: Add support for freespace tree in btrfs_read_fs_root To: Nikolay Borisov , References: <1538405181-25231-1-git-send-email-nborisov@suse.com> <1538405181-25231-2-git-send-email-nborisov@suse.com> From: Su Yue Message-ID: <46749eea-092f-db69-a38f-65836adc1ead@cn.fujitsu.com> Date: Thu, 4 Oct 2018 09:05:44 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.0 MIME-Version: 1.0 In-Reply-To: <1538405181-25231-2-git-send-email-nborisov@suse.com> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.167.226.24] X-yoursite-MailScanner-ID: A8C004B6ED5B.AB14A 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 On 10/1/18 10:46 PM, Nikolay Borisov wrote: > For completeness sake add code to btrfs_read_fs_root so that it can > handle the freespace tree. > > Signed-off-by: Nikolay Borisov Reviewed-by: Su Yue > --- > disk-io.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/disk-io.c b/disk-io.c > index 2e6d56a36af9..14f0fd5c2f0c 100644 > --- a/disk-io.c > +++ b/disk-io.c > @@ -668,6 +668,9 @@ struct btrfs_root *btrfs_read_fs_root(struct btrfs_fs_info *fs_info, > if (location->objectid == BTRFS_QUOTA_TREE_OBJECTID) > return fs_info->quota_enabled ? fs_info->quota_root : > ERR_PTR(-ENOENT); > + if (location->objectid == BTRFS_FREE_SPACE_TREE_OBJECTID) > + return fs_info->free_space_root ? fs_info->free_space_root : > + ERR_PTR(-ENOENT); > > BUG_ON(location->objectid == BTRFS_TREE_RELOC_OBJECTID || > location->offset != (u64)-1); >