ksm: Compute number of pages to scan
ksm: Compute number of pages to scan

We first need to compute the number of anonymous
pages on the system and then apply the KSM setting
factor to it, to understand how many pages we want
to scan per KSM run.

Signed-off-by: Samuel Ortiz <0ba86cb3f08bbb861958e54bd3438887adb4263c@linux.intel.com>

clearcontainers/proxy,clearcontainers/proxy