IB/hfi1: Harden state transition to Armed and Active
There is a window that allows other threads to read state of 'host_link_state' as a new, before the hardware actual state is set. This patch closes the window by indicating a new state only after hardware transition is complete. Reviewed-by:Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by:
Alex Estrin <alex.estrin@intel.com> Signed-off-by:
Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by:
Doug Ledford <dledford@redhat.com>
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