There are two problems addressed by this patch:
1)In qsd_prepare(), if @qqi_acct_failed is true,
that only means one type of quota failed, Quota
should continue to handle.
2)In qsd_config(), only trigger reintegration if
this type of quota is newly enabled, this could
fix annoying messages when admin running

$ lctl conf_param lustre.quota.mdt=ug

LustreError: 0-0: lustre-MDT0000: can't enable
quota enforcement since space accounting isn't
functional. Please run tunefs.lustre --quota on
an unmounted filesystem if not done already