Commits
Ming Lei committed 3d2936f457a
block: only allocate/free mq_usage_counter in blk-mq The percpu counter is only used for blk-mq, so move its allocation and free inside blk-mq, and don't allocate it for legacy queue device. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Jens Axboe <axboe@fb.com>