Enable shrinker debugging support

modulename: shrinker_debug.ko

configname: CONFIG_SHRINKER_DEBUG

Linux Kernel Configuration
└─>Kernel hacking
└─>Memory Debugging
└─>Enable shrinker debugging support
In linux kernel since version 6 (release Date: 2022-10-02)  
Say Y to enable the shrinker debugfs interface which provides
visibility into the kernel memory shrinkers subsystem.
Disable it to avoid an extra memory footprint.

source code:
depends
CONFIG_DEBUG_FS