[RFC PATCH 2/3] mm, page_alloc: get page migreate type again when related to highatomic

2016-06-18 Thread Wenwei Tao
From: Wenwei Tao The migratetype might get staled, pages might have become highatomic when we try to free them to the allocator, we might not want to put highatomic pages into other buddy lists, since they are reserved only for atomic high order use. And also highatomic

[RFC PATCH 2/3] mm, page_alloc: get page migreate type again when related to highatomic

2016-06-18 Thread Wenwei Tao
From: Wenwei Tao The migratetype might get staled, pages might have become highatomic when we try to free them to the allocator, we might not want to put highatomic pages into other buddy lists, since they are reserved only for atomic high order use. And also highatomic pages could have been