target: Fail UNMAP when emulate_tpu=0
This patch adds a check within sbc_parse_cdb() to fail a UNMAP op,
if the backend device has emulate_tpu disabled.
Cc: Martin Petersen <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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