This patch allows unmap bdev_io to
be used with spdk_bdev_io_get_buf.
bdev_io->iovs/iovcnt has been zeroed-out for other
I/O types to overwrite any previous values/pointers.
Change-Id: I570a4d82d9e4db6630a6831b1aab3259fb46cdd8
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/377687
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>