[PATCH v3 4/8] blk-mp: introduce blk_mq_hctx_map_queues
Hannes Reinecke
hare at suse.de
Wed Nov 13 01:48:24 PST 2024
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 at redhat.com>
>
> Signed-off-by: Daniel Wagner <wagi at kernel.org>
> ---
> block/blk-mq-cpumap.c | 37 +++++++++++++++++++++++++++++++++++++
> include/linux/blk-mq.h | 2 ++
> 2 files changed, 39 insertions(+)
>
Reviewed-by: Hannes Reinecke <hare at suse.de>
Cheers,
Hannes
--
Dr. Hannes Reinecke Kernel Storage Architect
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