diff options
| author | Julian Wiedmann <[email protected]> | 2018-07-19 12:43:48 +0200 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2018-07-21 10:12:29 -0700 |
| commit | a702349a4099cd5a7bab0904689d8e0bf8dcd622 (patch) | |
| tree | 9c4fecc85ff313af8459d3181fedf830d9962114 /tools/perf/scripts/python/sched-migration.py | |
| parent | d528114bd398b4edaeed370a96f874dff88c10f5 (diff) | |
s390/qeth: fix race in used-buffer accounting
By updating q->used_buffers only _after_ do_QDIO() has completed, there
is a potential race against the buffer's TX completion. In the unlikely
case that the TX completion path wins, qeth_qdio_output_handler() would
decrement the counter before qeth_flush_buffers() even incremented it.
Signed-off-by: Julian Wiedmann <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/sched-migration.py')
0 files changed, 0 insertions, 0 deletions