CONFIG_PROC_PID_ARCH_STATUS (not configurable)

configname: CONFIG_PROC_PID_ARCH_STATUS

Linux Kernel Configuration
└─>File systems
└─>Pseudo filesystems
└─>PROC_PID_ARCH_STATUS
In linux kernel since version 5.1 (release Date: 2019-05-05)  
depends
CONFIG_PROC_FS