Re: [PATCH V8 3/8] block, bfq: move io_cq-persistent bfqq data into a dedicated struct

[Damien Le Moal]

On 12/7/22 01:31, Paolo Valente wrote:
> With a multi-actuator drive, a process may get associated with multiple
> bfq_queues: one queue for each of the N actuators. So, the bfq_io_cq
> data structure must be able to accommodate its per-queue persistent
> information for N queues. Currently it stores this information for
> just one queue, in several scalar fields.
> 
> This is a preparatory commit for moving to accommodating persistent
> information for N queues. In particular, this commit packs all the
> above scalar fields into a single data structure. Then there is now
> only one field, in bfq_io_cq, that stores all the above information. This
> scalar field will then be turned into an array by a following commit.
> 
> Suggested-by: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx>
> Signed-off-by: Gianmarco Lusvardi <glusvardi@xxxxxxxxxx>
> Signed-off-by: Giulio Barabino <giuliobarabino99@xxxxxxxxx>
> Signed-off-by: Emiliano Maccaferri <inbox@xxxxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Paolo Valente <paolo.valente@xxxxxxxxxx>

Reviewed-by: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx>

-- 
Damien Le Moal
Western Digital Research