Re: [PATCH V2 0/9] blk-mq: fix wrong queue mapping for kdump kernel

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On Wed, Jul 26, 2023 at 05:40:18PM +0800, Ming Lei wrote:
> Hi,
> 
> On arm and ppc64, 'maxcpus=1' is required for kdump kernel,
> see `Documentation/admin-guide/kdump/kdump.rst`, so num_possible_cpus()
> still returns all CPUs because 'maxcpus=1' just bring up one single
> cpu core during booting.

Just as said last time:  Please drop the odd is_kdump_kernel checks
in blk_mq_update_queue_map and blk_mq_alloc_tag_set instead of sprinkling
this crap even further. 




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