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| author | Pavel Begunkov <[email protected]> | 2023-09-07 12:50:07 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2023-09-07 15:02:27 +0000 |
| commit | 45500dc4e01c167ee063f3dcc22f51ced5b2b1e9 (patch) | |
| tree | fbb32c75506c587f3506ff75b5e706f3a9784995 /tools/perf/scripts/python/check-perf-trace.py | |
| parent | io_uring: add a sysctl to disable io_uring system-wide (diff) | |
| download | kernel-45500dc4e01c167ee063f3dcc22f51ced5b2b1e9.tar.gz kernel-45500dc4e01c167ee063f3dcc22f51ced5b2b1e9.zip | |
io_uring: break out of iowq iopoll on teardown
io-wq will retry iopoll even when it failed with -EAGAIN. If that
races with task exit, which sets TIF_NOTIFY_SIGNAL for all its workers,
such workers might potentially infinitely spin retrying iopoll again and
again and each time failing on some allocation / waiting / etc. Don't
keep spinning if io-wq is dying.
Fixes: 561fb04a6a225 ("io_uring: replace workqueue usage with io-wq")
Cc: [email protected]
Signed-off-by: Pavel Begunkov <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions