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for-linus-20190706
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commit
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1 changed files with 7 additions and 0 deletions
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@ -934,6 +934,13 @@ void blk_mq_debugfs_register_sched(struct request_queue *q)
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{
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struct elevator_type *e = q->elevator->type;
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/*
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* If the parent directory has not been created yet, return, we will be
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* called again later on and the directory/files will be created then.
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*/
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if (!q->debugfs_dir)
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return;
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if (!e->queue_debugfs_attrs)
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return;
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