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blk-mq: map queues to all present CPUs

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We already do this for PCI mappings, and the higher level code now
expects that CPU on/offlining doesn't have an affect on the queue
mappings.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2017-07-18 17:04:40 +02:00 committed by Jens Axboe
parent 765e40b675
commit 76451d79bd
1 changed files with 2 additions and 2 deletions
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4
block/blk-mq-cpumap.c
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@ -17,9 +17,9 @@
static int cpu_to_queue_index(unsigned int nr_queues, const int cpu) static int cpu_to_queue_index(unsigned int nr_queues, const int cpu)
{ {
/* /*
* Non online CPU will be mapped to queue index 0. * Non present CPU will be mapped to queue index 0.
*/ */
if (!cpu_online(cpu)) if (!cpu_present(cpu))
return 0; return 0;
return cpu % nr_queues; return cpu % nr_queues;
} }