xfs: strengthen fuzz testing

In this series, I strengthen the xfs fuzz tests some more, having tired
of them passing too much.  The first patch races the fscounters scrubber
with fsstress to try to replicate a concurrency bug.  The middle three
patches improve the array handling of the fuzz testers so that we can
now test arbitrary subsets of arrays.  The last patch test recovery of
the xattrs attached to the root directory when we have to reinitialize
it.
xfs: test what happens when we reset the root dir and it has xattrs

Make sure that we can reset the root directory and the xattrs are erased
properly.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
3 files changed