On Wed, Oct 05, 2016 at 02:51:50PM -0700, Bart Van Assche wrote:

There are multiple direct blk_*() calls in other SCSI transport drivers. So 
my proposal is to wait with moving this code into scsi_lib.c until there is 
a second user of this code.

I still don't think these low-level difference for blk-mq vs legacy
request belong into a scsi LLDD.  So I concur with Sagi that this
should go into the core SCSI code.

In fact I suspect we should just call it directly from
scsi_internal_device_block, and maybe even scsi_internal_device_unblock
for case of setting the device offline.

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