blk-mq: Explain when 'active_queues' is decremented

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It is nontrivial to derive from the blk-mq source code when
blk_mq_tags.active_queues is decremented. Hence add a comment that
explains this.

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Bart Van Assche 2018-01-10 08:33:33 -08:00 • committed by Jens Axboe

parent 5f15684bd5

commit fcd36c36f3

1 changed files with 6 additions and 0 deletions

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block/blk-mq.c

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