While waiting for a new PDU, target will not do too many useless
memcpy.
Signed-off-by: MengjinWu <mengjin.wu@intel.com>
Change-Id: Ie0825c2b1e44444b210040c4a1761010e0e4cfe5
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/14444
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>