Messages in this thread | | | Date | Sun, 7 Mar 2004 16:40:52 -0800 | From | Andrew Morton <> | Subject | Re: Some highmem pages still in use after shrink_all_memory()? |
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Pavel Machek <pavel@ucw.cz> wrote: > > Hi! > > For swsusp, I need to free as much memory as possible. Well, and it > would be great if no highmem pages remained, so that I would not have > to deal with that. Is that possible?
No, it isn't. There are pagetable pages and mlocked user pages which we cannot do anything with.
We could perhaps swap out the mlocked pages anyway if a suspend is in progress, but the highmem pagetable pages are not presently reclaimed by the VM.
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