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523f1ea76a
Map irq vector into group, which allows to abstract the algorithm for a generic use case outside of the interrupt core. Rename irq_build_affinity_masks as group_cpus_evenly, so the API can be reused for blk-mq to make default queue mapping even though irq vectors aren't involved. No functional change, just rename vector as group. Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jens Axboe <axboe@kernel.dk> Link: https://lore.kernel.org/r/20221227022905.352674-5-ming.lei@redhat.com