From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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 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> In-Reply-To: <20171107084259.22367-1-wqu@suse.com> References: <20171107084259.22367-1-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 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; -- 2.15.0