Export zsmalloc statistics

configname: CONFIG_ZSMALLOC_STAT

Linux Kernel Configuration
└─>Export zsmalloc statistics
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This option enables code in the zsmalloc to collect various
statistics about whats happening in zsmalloc and exports that
information to userspace via debugfs.
If unsure, say N.