Messages in this thread |  | | Date | Tue, 5 Feb 2013 19:52:17 -0500 | 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 Wed, Feb 06, 2013 at 09:42:34AM +0900, Minchan Kim wrote: > THP degradation by increasing MIGRATE_UNMOVABLE? > Lin said most of GUP pages release the page in short so is it really problem? > Even in embedded, we don't use THP yet but CMA and GUP call would be not too often > but failing of CMA would be critical. > > I'd like to hear opinions.
If aio was given a callback to migrate the pages on, it could just migrate the pages as needed. There's nothing fundamental preventing that approach.
-ben -- "Thought is the essence of where you are now."
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