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btrfs-progs: mkfs: introduce function to insert qgroup info and limit items

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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 <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2020-03-18 17:21:44 -03:00 committed by David Sterba
parent e0e047f292
commit 83ad692230
1 changed files with 34 additions and 0 deletions
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34
mkfs/main.c
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@ -797,6 +797,40 @@ 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 BOX_MAIN(mkfs)(int argc, char **argv)
{
char *file;