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block: don't call blk_mq_quiesce_queue() after queue is frozen
authorMing Lei <ming.lei@redhat.com>
Mon, 1 May 2017 23:28:02 +0000 (07:28 +0800)
committerJens Axboe <axboe@fb.com>
Tue, 2 May 2017 17:33:08 +0000 (11:33 -0600)
commit7a148c2fcff83309748bfaafe121aa85b724624f
tree931f0857f3019dedc0282ceeb036af274f42b77etree | snapshot (tar.gz zip)
parentd6296d39e90c9075bc2fc15f1e86dac44930d4b5commit | diff
block: don't call blk_mq_quiesce_queue() after queue is frozen

After queue is frozen, no request in this queue can be in use at all, so
there can't be any .queue_rq() running on this queue.  It isn't
necessary to call blk_mq_quiesce_queue() any more, so remove it in both
elevator_switch_mq() and blk_mq_update_nr_requests().

Cc: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Fixed up the description a bit.

Signed-off-by: Jens Axboe <axboe@fb.com>
block/blk-mq.c diff | blob | blame | history
block/elevator.c diff | blob | blame | history