Mark Johnston 57a9273f93 rtld: Fix a couple of bugs around the unloading of ELF filters.
- Pass the correct object to unload_filtees().
- Use a marker to restart iteration after unload_filtees() has returned.
  It calls dlclose() and may recursively remove entries from the global
  object list, so TAILQ_FOREACH_SAFE is not sufficient.

Reviewed by:	kib
MFC after:	2 weeks
Sponsored by:	Dell EMC Isilon
2016-12-22 17:44:27 +00:00
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MFH
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