CONFIG_CPU_COPY_V6 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

CONFIG_CPU_COPY_V6 (not configurable)

modulename: copypage-v6.ko

configname: CONFIG_CPU_COPY_V6

Linux Kernel Configuration
└─>CPU_COPY_V6
In linux kernel since version 2.6.12  
source code:
depends
CONFIG_MMU