From patchwork Tue Feb 10 10:23:21 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yang Dongsheng X-Patchwork-Id: 5805961 Return-Path: X-Original-To: patchwork-linux-btrfs@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 965C19F37F for ; Tue, 10 Feb 2015 10:27:03 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D867B2010C for ; Tue, 10 Feb 2015 10:27:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 043BD20117 for ; Tue, 10 Feb 2015 10:27:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754449AbbBJK06 (ORCPT ); Tue, 10 Feb 2015 05:26:58 -0500 Received: from cn.fujitsu.com ([59.151.112.132]:24217 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1754827AbbBJK0t (ORCPT ); Tue, 10 Feb 2015 05:26:49 -0500 X-IronPort-AV: E=Sophos;i="5.04,848,1406563200"; d="scan'208";a="57387883" Received: from localhost (HELO edo.cn.fujitsu.com) ([10.167.33.5]) by heian.cn.fujitsu.com with ESMTP; 10 Feb 2015 18:23:15 +0800 Received: from G08CNEXCHPEKD02.g08.fujitsu.local (localhost.localdomain [127.0.0.1]) by edo.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id t1AAQ3Cx000873 for ; Tue, 10 Feb 2015 18:26:03 +0800 Received: from yds-PC.g08.fujitsu.local (10.167.226.66) by G08CNEXCHPEKD02.g08.fujitsu.local (10.167.33.89) with Microsoft SMTP Server (TLS) id 14.3.181.6; Tue, 10 Feb 2015 18:26:52 +0800 From: Dongsheng Yang To: CC: Dongsheng Yang Subject: [PATCH 7/9] Btrfs: qgroup: make the btree for qgroup increase from left to right. Date: Tue, 10 Feb 2015 18:23:21 +0800 Message-ID: <1423563803-8996-10-git-send-email-yangds.fnst@cn.fujitsu.com> X-Mailer: git-send-email 1.8.4.2 In-Reply-To: <1423563803-8996-1-git-send-email-yangds.fnst@cn.fujitsu.com> References: <1423563803-8996-1-git-send-email-yangds.fnst@cn.fujitsu.com> MIME-Version: 1.0 X-Originating-IP: [10.167.226.66] Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP It's not a big deal, but I would rather make the btree follow the convention to increase from left to right. Signed-off-by: Dongsheng Yang --- fs/btrfs/qgroup.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c index 34717ed..d3c261b 100644 --- a/fs/btrfs/qgroup.c +++ b/fs/btrfs/qgroup.c @@ -117,9 +117,9 @@ static struct btrfs_qgroup *find_qgroup_rb(struct btrfs_fs_info *fs_info, while (n) { qgroup = rb_entry(n, struct btrfs_qgroup, node); if (qgroup->qgroupid < qgroupid) - n = n->rb_left; - else if (qgroup->qgroupid > qgroupid) n = n->rb_right; + else if (qgroup->qgroupid > qgroupid) + n = n->rb_left; else return qgroup; } @@ -139,9 +139,9 @@ static struct btrfs_qgroup *add_qgroup_rb(struct btrfs_fs_info *fs_info, qgroup = rb_entry(parent, struct btrfs_qgroup, node); if (qgroup->qgroupid < qgroupid) - p = &(*p)->rb_left; - else if (qgroup->qgroupid > qgroupid) p = &(*p)->rb_right; + else if (qgroup->qgroupid > qgroupid) + p = &(*p)->rb_left; else return qgroup; }