On Wed, 22 Jun 2022 10:25:54 +0200, Sebastian Andrzej Siewior wrote:
> __blk_mq_delay_run_hw_queue() disables preemption to get a stable
> current CPU number and then invokes __blk_mq_run_hw_queue() if the CPU
> number is part the mask.
>
> __blk_mq_run_hw_queue() acquires a spin_lock_t which is a sleeping lock
> on PREEMPT_RT and can't be acquired with disabled preemption.
>
> [...]
Applied, thanks!
[1/1] blk-mq: Don't disable preemption around __blk_mq_run_hw_queue().
commit: c9198d784fa93d447afe8e4627dfe205f0ce5ec8
Best regards,
--
Jens Axboe
