Changes

FIXME how

FIXME how

HOW: The memfd in question is created in the task with lowest PID among those having this shmem segment

HOW: The memfd in question is created in the task with lowest PID (see [[postulates]]) among those having this shmem segment

mapped, then criu waits for the others to get this file by opening the creator's /proc/pid/fd/ link.

mapped, then criu waits for the others to get this file by opening the creator's /proc/pid/fd/ link.

Afterwards all the files just mmap() this descriptor into their address space.

Afterwards all the files just mmap() this descriptor into their address space.