This is basically a repost of the 2 patches that were dropped because
they caused oopses plus a fixup patch.
The reason for the failures was that commit
4a0962abd187df29b7d1378b2f372a55667d54c04a0962abd187df29b7d1378b2f372a55667d54c0
(back in February) was clobbered by a later
commit. As a result the dentry objects did not have consistent object
state on free which did not allow accurate object state determination.
The first patch fixes the dentry code so that there is a consistent object
state on free again.
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