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| author | Pavel Begunkov <[email protected]> | 2020-06-25 09:37:10 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2020-06-25 13:20:43 +0000 |
| commit | cd664b0e35cb1202f40c259a1a5ea791d18c879d (patch) | |
| tree | 3983571ba27df563c6972dac57113a6ca5a1d649 /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | io_uring: fix io_sq_thread no schedule when busy (diff) | |
| download | kernel-cd664b0e35cb1202f40c259a1a5ea791d18c879d.tar.gz kernel-cd664b0e35cb1202f40c259a1a5ea791d18c879d.zip | |
io_uring: fix hanging iopoll in case of -EAGAIN
io_do_iopoll() won't do anything with a request unless
req->iopoll_completed is set. So io_complete_rw_iopoll() has to set
it, otherwise io_do_iopoll() will poll a file again and again even
though the request of interest was completed long time ago.
Also, remove -EAGAIN check from io_issue_sqe() as it races with
the changed lines. The request will take the long way and be
resubmitted from io_iopoll*().
io_kiocb's result and iopoll_completed")
Fixes: bbde017a32b3 ("io_uring: add memory barrier to synchronize
Signed-off-by: Pavel Begunkov <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions