In order to restore deduplicated anonymous shared memory we need
to open it's parent pagemap images. Code that opens parent pagemap
images already exists for anonymous private memory. All we need to do
is to remove couple of checks from existing code. Also we need to rename
pid to id because now we can pass either pid or shmid and the actual
meaning depends on pr_flags.
Signed-off-by: Fyodor Bocharov <fbocharov@yandex.ru>
Signed-off-by: Eugene Batalov <eabatalov89@gmail.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>