alinux: iocost: fix a deadlock in ioc_rqos_throttle()
Function ioc_rqos_throttle() may called inside queue_lock. We should unlock the queue_lock before entering sleep. Signed-off-by: NJiufei Xue <jiufei.xue@linux.alibaba.com> Reviewed-by: NJoseph Qi <joseph.qi@linux.alibaba.com>
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