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| author | Pavel Begunkov <asml.silence@gmail.com> | 2021-03-09 00:37:59 +0000 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-03-10 07:28:42 -0700 |
| commit | 7a612350a989866510dc5c874fd8ffe1f37555d2 (patch) | |
| tree | 4a43e1283d75dfbf6c9fea031c3962007b8071b9 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 33cc89a9fc248a486857381584cc6b67d9405fab (diff) | |
io_uring: fix complete_post races for linked req
Calling io_queue_next() after spin_unlock in io_req_complete_post()
races with the other side extracting and reusing this request. Hand
coded parts of io_req_find_next() considering that io_disarm_next()
and io_req_task_queue() have (and safe) to be called with
completion_lock held.
It already does io_commit_cqring() and io_cqring_ev_posted(), so just
reuse it for post io_disarm_next().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/5672a62f3150ee7c55849f40c0037655c4f2840f.1615250156.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions