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authorMike Marciniszyn <mike.marciniszyn@intel.com>2016-03-07 11:35:30 -0800
committerDoug Ledford <dledford@redhat.com>2016-03-17 15:55:20 -0400
commit60df29581f67e06791a176641c774515ec1634e5 (patch)
tree06c4e9587bcdd2ce69d3efd7696b4ac30d83e71f /drivers/staging/unisys/TODO
parent5326dfbf005ca8589d709209a81d145c5b87b23d (diff)
IB/hfi1: Fix PIO wakeup timing hole
There is a timing hole if there had been greater than PIO_WAIT_BATCH_SIZE waiters. This code will dispatch the first batch but leave the others in the queue. If the restarted waiters don't in turn wait on a buffer, there is a hang. Fix by forcing a return when the QP queue is non-empty. Reviewed-by: Vennila Megavannan <vennila.megavannan@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/staging/unisys/TODO')
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