[dm-devel] RFC: split scsi passthrough fields out of struct request
Christoph Hellwig
hch at lst.de
Thu Jan 12 07:59:55 UTC 2017
On Wed, Jan 11, 2017 at 05:41:42PM -0500, Mike Snitzer wrote:
> I removed blk-mq on request_fn paths support because it was one of the
> permutations that I felt least useful/stable (see commit c5248f79f3 "dm:
> remove support for stacking dm-mq on .request_fn device(s)")
>
> As for all of the different IO paths. I've always liked the idea of
> blk-mq ruling the world. With Jens' blk-mq IO scheduling advances maybe
> we're closer!
That removed blk-mq on top of request_fn code would do the right thing
for this series if it entirely replaced the old request_fn code in dm-mpath.
(as would the new bio code for that matter)
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