+ struct list_head policy_list; /* list of blkio_policy_node */
+};
+
+struct blkio_group_stats {
+ /* total disk time and nr sectors dispatched by this group */
+ uint64_t time;
+ uint64_t sectors;
+ uint64_t stat_arr[BLKIO_STAT_QUEUED + 1][BLKIO_STAT_TOTAL];
+#ifdef CONFIG_DEBUG_BLK_CGROUP
+ /* Sum of number of IOs queued across all samples */
+ uint64_t avg_queue_size_sum;
+ /* Count of samples taken for average */
+ uint64_t avg_queue_size_samples;
+ /* How many times this group has been removed from service tree */
+ unsigned long dequeue;
+
+ /* Total time spent waiting for it to be assigned a timeslice. */
+ uint64_t group_wait_time;
+ uint64_t start_group_wait_time;
+
+ /* Time spent idling for this blkio_group */
+ uint64_t idle_time;
+ uint64_t start_idle_time;
+ /*
+ * Total time when we have requests queued and do not contain the
+ * current active queue.
+ */
+ uint64_t empty_time;
+ uint64_t start_empty_time;
+ uint16_t flags;
+#endif