Re: [PATCH 1/5 v2] blk-mq: Add prep/unprep support
On Wed, Apr 15, 2015 at 02:34:40PM +0200, Matias Bj??rling wrote: > Allow users to hook into prep/unprep functions just before an IO is > dispatched to the device driver. This is necessary for request-based > logic to take place at upper layers.
I don't think any of this logic belongs into the block layer. All this should be library functions called by the drivers.