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 <w...@suse.com>
---
mkfs/main.c | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/mkfs/main.c b/mkfs/main.c
index b76462a735cf..c6174a7424cf 100644
--- a/mkfs/main.c
+++ b/mkfs/main.c
@@ -709,6 +709,40 @@ 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;
--
2.18.0
--
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