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mq-deadline: add debugfs attributes

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Expose the fifo lists, cached next requests, batching state, and
dispatch list. It'd also be possible to add the sorted lists, but there
aren't already seq_file helpers for rbtrees.

Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Omar Sandoval
2017-05-04 00:31:34 -07:00
committed by Jens Axboe
parent 16b738f651
commit daaadb3e94
3 changed files with 131 additions and 2 deletions
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block/blk-mq-debugfs.h
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@@ -14,6 +14,7 @@ struct blk_mq_debugfs_attr {
const struct seq_operations *seq_ops;
};
int __blk_mq_debugfs_rq_show(struct seq_file *m, struct request *rq);
int blk_mq_debugfs_rq_show(struct seq_file *m, void *v);
int blk_mq_debugfs_register(struct request_queue *q);