Linus Torvalds wrote:
> The long-term solution for this is to create the new VM space for the
> new process early, and add it to the list of mm_struct's that the
> swapper knows about, and then just get rid of the pages[MAX_ARG_PAGES]
> array completely and instead just populate the new VM directly. That
> way the destination is swappable etc, and you can also remove the
> "put_dirty_page()" loop later on, as the pages will already be in their
> right places.
>
> It's definitely not a one-liner, but if somebody really feels strongly
> about this, then I can tell already that the above is the only way to do
> it sanely.
Yup. We discussed this years ago, and it nobody thought it important
enough. mm->mmlist didn't exist then, and creating it it _just_ for
this feature seemed too intrusive. I agree it's the only sane way to
completely remove the limit.
-- Jamie
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