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| author | Mike Marciniszyn <mike.marciniszyn@intel.com> | 2016-03-07 22:35:30 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-03-17 22:55:20 +0300 |
| commit | 60df29581f67e06791a176641c774515ec1634e5 (patch) | |
| tree | 06c4e9587bcdd2ce69d3efd7696b4ac30d83e71f /tools/perf/scripts/python/syscall-counts.py | |
| parent | 5326dfbf005ca8589d709209a81d145c5b87b23d (diff) | |
| download | linux-60df29581f67e06791a176641c774515ec1634e5.tar.xz | |
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 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions