Re: [PATCH 02/15] libnvdimm: infrastructure for btt devices

Christoph Hellwig
2015-06-22T16:34:53Z

FYI, the mess calls into libnvdimm for each register pmem or blk device
which then walks partitions to find your btt metadata is an absolutely
no go and suggest that the layering is completely fucked up.

Please go and revisit it for a sensible model, where the different
drivers attach to a nvdimm bus instead of stacking up with a little
detour through the block layer. From all that it's pretty clear
pmem, blk and btt should be peers in the hierarchy.
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