Track memory changes

configname: CONFIG_MEM_SOFT_DIRTY

Linux Kernel Configuration
└─>Memory Management options
└─>Track memory changes
In linux kernel since version 3.11 (release Date: 2013-09-02)  
This option enables memory changes tracking by introducing a
soft-dirty bit on pte-s. This bit it set when someone writes
into a page just as regular dirty bit, but unlike the latter
it can be cleared by hands.

See Documentation/admin-guide/mm/soft-dirty.rst for more details.


depends
CONFIG_CHECKPOINT_RESTORE
CONFIG_HAVE_ARCH_SOFT_DIRTY
CONFIG_PROC_FS