[SOLVED] How to get/set value of MAX_ZONEORDER in user space?

Issue

Is there any way to change MAX_ZONEORDER from user space without compiling kernel? How to get available nodes and pages on each node ?

Solution

You can get the value of max zoneorder in userspace using cat /proc/pagetypeinfo, but you cannot set max zoneorder value in userspace. Value is set while memory subsystem ups, for setting value use kernel menuconfig. default value is 11.

Answered By - Pankaj Suryawanshi