ksm: consider KSM-placed zeropages when calculating KSM profit

When use_zero_pages is enabled, the calculation of ksm profit is not
correct because ksm zero pages is not counted in.  So update the
calculation of KSM profit including the documentation.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: xu xin <[email protected]>
Acked-by: David Hildenbrand <[email protected]>
Cc: Xiaokai Ran <[email protected]>
Cc: Yang Yang <[email protected]>
Cc: Jiang Xuexin <[email protected]>
Cc: Claudio Imbrenda <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions