On 04/17/2015 08:34 AM, Christoph Hellwig wrote:
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.
Just the prep/unprep, or other pieces as well?
I like that struct request_queue has a ref to struct nvm_dev, and the
variables in request and bio to get to the struct is in the block layer.
In the future, applications can have an API to get/put flash block
directly. (using the blk_nvm_[get/put]_blk interface).
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