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https://bugzilla.redhat.com/show_bug.cgi?id=1160926 Passing a copy of the storage pool adapter to a function just changes the copy of the fields in the particular function and then when returning to the caller those changes are discarded. While not yet biting us in the storage clean-up case, it did cause an issue for the fchost storage pool startup case, createVport. The issue was at startup, if no parent is found in the XML, the code will search for the 'best available' parent and then store that in the in memory copy of the adapter. Of course, in this case it was a copy, so when returning to the virStorageBackendSCSIStartPool that change was discarded (or lost) from the pool->def->source.adapter which meant at shutdown (deleteVport), the code assumed no adapter was passed and skipped the deletion, leaving the vHBA created by libvirt still defined requiring an additional stop of a nodedev-destroy to remove. Adjusted the createVport to take virStoragePoolDefPtr instead of the adapter copy. Then use the virStoragePoolSourceAdapterPtr when processing. A future patch will need the 'def' anyway, so this just sets up for that.
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>