Messages in this thread |  | | Date | Sat, 14 Feb 2015 14:02:16 +0900 | From | Gioh Kim <> | Subject | Re: [RFC 13/16] mm/cma: populate ZONE_CMA and use this zone when GFP_HIGHUSERMOVABLE |
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2015-02-12 오후 4:32에 Joonsoo Kim 이(가) 쓴 글: > Until now, reserved pages for CMA are managed altogether with normal > page in the same zone. This approach has numorous problems and fixing > them isn't easy. To fix this situation, ZONE_CMA is introduced in > previous patch, but, not yet populated. This patch implement population > of ZONE_CMA by stealing reserved pages from normal zones. This stealing > break one uncertain assumption on zone, that is, zone isn't overlapped. > In the early of this series, some check is inserted to every zone's span > iterator to handle zone overlap so there would be no problem with > this assumption break. > > To utilize this zone, user should use GFP_HIGHUSERMOVABLE, because
I think it might be typo of GFP_HIGHUSER_MOVABLE.
> these pages are only applicable for movable type and ZONE_CMA could > contain highmem. >
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