Re: [PATCH v6 1/4] block: Make fair tag sharing configurable

[Bart Van Assche <bvanassche@xxxxxxx>]

On 12/25/23 04:51, Yu Kuai wrote:
> Are you still intrested in this patchset? I really want this switch in
> our product as well.
>
> If so, how do you think about following changes, a new field in
> blk_mq_tag_set will make synchronization much eaiser.
Do you perhaps see the new field as an alternative for the
BLK_MQ_F_DISABLE_FAIR_TAG_SHARING flag? I'm not sure that would be an
improvement. hctx_may_queue() is called from the hot path. Using the
'flags' field will make it easier for the compiler to optimize that
function compared to using a new structure member.

Thanks,

Bart.