Re: [PATCH v3 4/8] blk-mp: introduce blk_mq_hctx_map_queues

[Hannes Reinecke]

On 11/12/24 14:26, Daniel Wagner wrote:
> blk_mq_pci_map_queues and blk_mq_virtio_map_queues will create a CPU to
> hardware queue mapping based on affinity information. These two function
> share common code and only differ on how the affinity information is
> retrieved. Also, those functions are located in the block subsystem
> where it doesn't really fit in. They are virtio and pci subsystem
> specific.
>
> Thus introduce provide a generic mapping function which uses the
> irq_get_affinity callback from bus_type.
>
> Originally idea from Ming Lei <ming.lei@xxxxxxxxxx>
>
> Signed-off-by: Daniel Wagner <wagi@xxxxxxxxxx>
> ---
>   block/blk-mq-cpumap.c  | 37 +++++++++++++++++++++++++++++++++++++
>   include/linux/blk-mq.h |  2 ++
>   2 files changed, 39 insertions(+)
Reviewed-by: Hannes Reinecke <hare@xxxxxxx>

Cheers,

Hannes
--
Dr. Hannes Reinecke                  Kernel Storage Architect
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