these are outstanding patches in my series unifying VFS and XFS quota
interfaces so that XFS quotactls work for filesystems with VFS quotas and vice
versa. This is useful so that userspace doesn't have to care that much about
which filesystem it is using at least when using basic quota functionality. In
particular we should be able to reuse project quota tests in xfstests for ext4.
The patches are based on top of Linus' tree from today which already contains
initial part of the original series. The patch series can also be pulled from
'quota_interface' branch of my tree .
Since all the patches (except one quota patch) have Reviewed-by tags, I'll
push the patches to my tree in a few days and will send them to Linus for the
next merge window unless someone objects.