From patchwork Tue Nov 7 08:42:53 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qu Wenruo X-Patchwork-Id: 10045915 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 68A6F60360 for ; Tue, 7 Nov 2017 08:43:49 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5A6092A091 for ; Tue, 7 Nov 2017 08:43:49 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4F7572A0B0; Tue, 7 Nov 2017 08:43:49 +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 031B62A091 for ; Tue, 7 Nov 2017 08:43:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933695AbdKGInr (ORCPT ); Tue, 7 Nov 2017 03:43:47 -0500 Received: from victor.provo.novell.com ([137.65.250.26]:54698 "EHLO prv3-mh.provo.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933657AbdKGInZ (ORCPT ); Tue, 7 Nov 2017 03:43:25 -0500 Received: from adam-pc.lan (prv-ext-foundry1int.gns.novell.com [137.65.251.240]) by prv3-mh.provo.novell.com with ESMTP (NOT encrypted); Tue, 07 Nov 2017 01:43:12 -0700 From: Qu Wenruo To: linux-btrfs@vger.kernel.org Cc: dsterba@suse.cz Subject: [PATCH v2 06/12] btrfs-progs: mkfs: Introduce function to insert qgroup info and limit items Date: Tue, 7 Nov 2017 16:42:53 +0800 Message-Id: <20171107084259.22367-10-wqu@suse.com> X-Mailer: git-send-email 2.15.0 In-Reply-To: <20171107084259.22367-1-wqu@suse.com> References: <20171107084259.22367-1-wqu@suse.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 Introduce a new function, insert_qgroup_items(), to insert qgroup info item and qgroup limit item for later mkfs qgroup support. Signed-off-by: Qu Wenruo --- mkfs/main.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/mkfs/main.c b/mkfs/main.c index 1b4cabc1ef90..0f0dabd36d14 100644 --- a/mkfs/main.c +++ b/mkfs/main.c @@ -1404,6 +1404,40 @@ out: return ret; } +static int insert_qgroup_items(struct btrfs_trans_handle *trans, + struct btrfs_fs_info *fs_info, + u64 qgroupid) +{ + struct btrfs_path path; + struct btrfs_root *quota_root = fs_info->quota_root; + struct btrfs_key key; + int ret; + + if (qgroupid >> BTRFS_QGROUP_LEVEL_SHIFT) { + error("qgroup level other than 0 is not supported yet"); + return -ENOTTY; + } + + key.objectid = 0; + key.type = BTRFS_QGROUP_INFO_KEY; + key.offset = qgroupid; + + btrfs_init_path(&path); + ret = btrfs_insert_empty_item(trans, quota_root, &path, &key, + sizeof(struct btrfs_qgroup_info_item)); + btrfs_release_path(&path); + if (ret < 0) + return ret; + + key.objectid = 0; + key.type = BTRFS_QGROUP_LIMIT_KEY; + key.offset = qgroupid; + ret = btrfs_insert_empty_item(trans, quota_root, &path, &key, + sizeof(struct btrfs_qgroup_limit_item)); + btrfs_release_path(&path); + return ret; +} + int main(int argc, char **argv) { char *file;