RE: [patch][rfc] expandable anonymous shared mappings

[Christoph Rohland]

Hi Stas, Hugh,

> The trick is that I am setting the old_len arg
> of mremap() to 0. This means that the new mapping
> is created while the old one is *not* being
> destroyed. So I get multiple virtual memory
> areas referencing the same shared memory region,
> lets call them "aliases".

I would propose you use the posix shm API for what you want to do and leave
anonymous shared memory as a special case of this like it is...

Keep it simple and stupid!

Just my 2cts
                  Christoph

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