On Sat, 27 May 2023 17:19:04 +0800, linan666@xxxxxxxxxxxxxxx wrote:
> adjust_inuse_and_calc_cost() use spin_lock_irq() and IRQ will be enabled
> when unlock. DEADLOCK might happen if we have held other locks and disabled
> IRQ before invoking it.
>
> Fix it by using spin_lock_irqsave() instead, which can keep IRQ state
> consistent with before when unlock.
>
> [...]
Applied, thanks!
[1/1] blk-iocost: use spin_lock_irqsave in adjust_inuse_and_calc_cost
commit: 8d211554679d0b23702bd32ba04aeac0c1c4f660
Best regards,
--
Jens Axboe
