On Wed, Jan 20, 2021 at 09:26:41AM -0500, Pavel Tatashin wrote: > I thought about this, and it would code a little cleaner. But, the > reason I did not is because zero_page is perfectly pinnable, it is not > pinnable only when it is in a movable zone (and it should not be in a > movable zones for other reasons as well), but that is another bug that > needs to be resolved, and once that bug is resolved this condition can > be removed from gup migration. My point is you've defined the zero page to be pinnable no matter what zone it is in, so is_pinnable(zero_page) == true Jason
