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31 difference is that an anonymous address space doesn't care about the
33 anonymous address space we just leave the previous address space
36 The obvious use for a "anonymous address space" is any thread that
39 some amount of time they are not going to be interested in user space,
44 - "tsk->mm" points to the "real address space". For an anonymous process,
46 really doesn't _have_ a real address space at all.
48 - however, we obviously need to keep track of which address space we
50 which shows what the currently active address space is.
52 The rule is that for a process with a real address space (ie tsk->mm is
58 anonymous process gets scheduled away, the borrowed address space is
62 "mm_users" counter that is how many "real address space users" there are,
68 actually get cases where you have a address space that is _only_ used by