tree 4b7dc3c924b915a60e7300d0b4d305a8c2e84086
parent f6223ff799666235a80d05f8137b73e5580077b9
author Jens Axboe <axboe@kernel.dk> 1638499215 -0700
committer Jens Axboe <axboe@kernel.dk> 1638538052 -0700

io-wq: don't retry task_work creation failure on fatal conditions

We don't want to be retrying task_work creation failure if there's
an actual signal pending for the parent task. If we do, then we can
enter an infinite loop of perpetually retrying and each retry failing
with -ERESTARTNOINTR because a signal is pending.

Fixes: 3146cba99aa2 ("io-wq: make worker creation resilient against signals")
Reported-by: Florian Fischer <florian.fl.fischer@fau.de>
Link: https://lore.kernel.org/io-uring/20211202165606.mqryio4yzubl7ms5@pasture/
Tested-by: Florian Fischer <florian.fl.fischer@fau.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>