On Thu, Jun 30, 2022 at 02:14:04AM -0700, Chaitanya Kulkarni wrote:

Not all devices can support verify requests which can be mapped to
the controller specific command. This patch adds a way to emulate
REQ_OP_VERIFY for NVMeOF block device namespace. We add a new
workqueue to offload the emulation.

How is this an "emulation"?

Also why do we need the workqueue offloads?  I can't see any good
reason to not just simply submit the bio asynchronously like all the
other bios submitted by the block device backend.