[PATCH 0/3] include reservations in quota reporting

[Christoph Hellwig]

This series makes sure quota reporting through quotactl, or in case of
project quotas, statfs includes quota reservation in addition to the
on-disk values.  This fixes xfstests 270, which has been failing on XFS
since it was added, and makes the Q_XQUOTASYNC quotactl command that
xfs_quota uses to flush delalloc space redundant.

Jan, the last patch touches common quota code, but it's only relevant
to XFS - I'd like to put it in through the XFS tree if possible.