null_blk: Enable modifying 'submit_queues' after an instance has been configured

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This patch makes it possible to test blk_mq_update_nr_hw_queues() from
inside a VM.

Cc: Christoph Hellwig <hch@infradead.org>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Bart Van Assche 2019-09-30 16:00:47 -07:00 • committed by Jens Axboe

parent e29158b4ff

commit 45919fbfe1

1 changed files with 50 additions and 25 deletions

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75

drivers/block/null_blk_main.c

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