Messages in this thread | | | Date | Fri, 25 Apr 2014 00:36:10 -0700 | From | Christoph Hellwig <> | Subject | [PATCH 0/1] random vs blk-mq |
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A tester found out that we need add_disk_randomness for my scsi-mq branch. The patch applied exports add_disk_randomness so that modular scsi still works with a driver that either uses the low-level I/O completion routines for the old block layer, or blk-mq, and I'd love to get this in through Jens' tree which has all the other block work scsi-mq requires.
But this also brings up an interesting question: blk-mq currently does not set QUEUE_FLAG_ADD_RANDOM in the default queue flags, so simply converting a driver to blk-mq will mean it stops contributing to the random pool. Do we need a more fine grained way to control this, especially for SCSI?
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