qgroup clear-stale calls sync() even without quotas enabled

[buzo-ffm]

btrfs qgroup clear-stale calls sync (via btrfs_util_sync_fd()) in cmd/qgroup.c line 2213 before figuring out whether quotas are enabled at all (in line 2219).

This causes unnecessary delays on a system which does not enable quotas, but which uses tools which call this quota-related command. Could you please find out whether quotas are enabled first?

[kdave]

Fixed in devel, thanks.