[CRIU] [PATCH 0/3] Merge per-task filelocks images into global one

[Pavel Emelyanov]

File-lock entries are now in per-pid images, but every entry contains
a pid to which it "belongs". This belonging is fake -- it's just a pid
of a task who placed the lock, while locks really belong to files. We
even have a bug when task that locked a file exited and "delegated" the
lock to its child.

This images merge reduces the amount of image files criu generates and
may simplify the fix of mentioned above issue.