* manage pages by an array * fix mmap of fd created by memfd_create() populates the map * refactor pgsize and pgshift handling Change-Id: Icaf015b10afc35f2b95f93059adf1a1b6b92e14e refs: #1475
* manage pages by an array * fix mmap of fd created by memfd_create() populates the map * refactor pgsize and pgshift handling Change-Id: Icaf015b10afc35f2b95f93059adf1a1b6b92e14e refs: #1475