ssize_t ret = queue_var_store(&stats, page, count);
spin_lock_irq(q->queue_lock);
+ elv_quiesce_start(q);
+
if (stats)
queue_flag_set(QUEUE_FLAG_IO_STAT, q);
else
queue_flag_clear(QUEUE_FLAG_IO_STAT, q);
+
+ elv_quiesce_end(q);
spin_unlock_irq(q->queue_lock);
return ret;