Messages in this thread | | | Date | Mon, 13 May 2013 11:01:47 -0400 | From | Benjamin LaHaise <> | Subject | Re: [PATCH V2 1/2] mm: hotplug: implement non-movable version of get_user_pages() called get_user_pages_non_movable() |
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On Mon, May 13, 2013 at 10:54:03AM -0400, Jeff Moyer wrote: > How do you propose to move the ring pages?
It's the same problem as doing a TLB shootdown: flush the old pages from userspace's mapping, copy any existing data to the new pages, then repopulate the page tables. It will likely require the addition of address_space_operations for the mapping, but that's not too hard to do.
-ben -- "Thought is the essence of where you are now."
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