From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from prv3-mh.provo.novell.com ([137.65.250.26]:54482 "EHLO prv3-mh.provo.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751980AbdJ0H37 (ORCPT ); Fri, 27 Oct 2017 03:29:59 -0400 From: Qu Wenruo To: linux-btrfs@vger.kernel.org Cc: dsterba@suse.cz Subject: [PATCH 6/8] btrfs-progs: mkfs: Introduce function to insert qgroup info and limit items Date: Fri, 27 Oct 2017 15:29:34 +0800 Message-Id: <20171027072936.4697-7-wqu@suse.com> In-Reply-To: <20171027072936.4697-1-wqu@suse.com> References: <20171027072936.4697-1-wqu@suse.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: 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 1d72702414bc..c50e7e74daf1 100644 --- a/mkfs/main.c +++ b/mkfs/main.c @@ -702,6 +702,40 @@ static void update_chunk_allocation(struct btrfs_fs_info *fs_info, } } +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; -- 2.14.3