This fixes the 4.14 backport commit574eb136ecwhich was upstream commitf5bbbbe4d6. The upstream commit added a call to synchronize_rcu to _blk_mq_update_nr_hw_queues, just after freezing queues. In the backport this landed just after unfreezeing queues. This commit moves the call to its intended place. Fixes:574eb136ec("blk-mq: sync the update nr_hw_queues with blk_mq_queue_tag_busy_iter") Signed-off-by: Giuliano Procida <gprocida@google.com> Signed-off-by: Sasha Levin <sashal@kernel.org>