[dm-devel] [PATCH RFT/RFC 2/4] add dm_scsi helpers

[Mike Christie]

Mike Christie wrote:
> I took this function from the cleanup I am doing in the
> scsi layer. Unfortunately that work needs some things
> fleshed out so I do not know when it will ever be merged.
> For now so that dm can move forward I put only what we need
> in dm-hw-handler.c and when the scsi-ml work gets
> finished I hope we can merge the two or most likely add a
> wrapper around the scsi function since we need mempools for
> some of our structs.
> 

oh yeah that reminds me, does anyone know if we will ever need very 
large requests? A meg, or a couple of megs, or something that cannot be 
handled with a kmalloc. Just wondering becuase for the scsi stuff we 
need iovec/bvec/scatterlist support which I am working on.