The pointer to the core representation of a request is marked NULL at
completion, but we need to save the i/o tag for task management.
Signed-off-by: NJeff Skirvin <jeffrey.d.skirvin@intel.com>
Signed-off-by: NJacek Danecki <Jacek.Danecki@intel.com>
[revise changelog]
Signed-off-by: NDan Williams <dan.j.williams@intel.com>