On 7/17/21 6:33 AM, Oleksandr Natalenko wrote:
> After mq-deadline learnt to deal with cgroups, the BLKCG_MAX_POLS value
> became too small for all the elevators to be registered properly. The
> following issue is seen:
>
> ```
> calling bfq_init+0x0/0x8b @ 1
> blkcg_policy_register: BLKCG_MAX_POLS too small
> initcall bfq_init+0x0/0x8b returned -28 after 507 usecs
> ```
>
> and BFQ is non-functional.
>
> Increase BLKCG_MAX_POLS to allow space for everyone
LGTM, just needs a:
Fixes: 08a9ad8bf607 ("block/mq-deadline: Add cgroup support")
in there too, I'll add it.
--
Jens Axboe
