Re: [PATCH V2 1/2] mm: hotplug: implement non-movable version of get_user_pages() called get_user_pages_non_movable()
From: Benjamin LaHaise <bcrl@kvack.org>
Date: 2013-02-06 00:52:17
Also in:
linux-fsdevel, lkml
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." -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>