Re: [PATCH v8 7/7] mm,page_alloc: Drop unnecessary checks from pfn_range_valid_contig

On Thu 15-04-21 12:35:44, Oscar Salvador wrote: > pfn_range_valid_contig() bails out when it finds an in-use page or a > hugetlb page, among other things. > We can drop the in-use page check since __alloc_contig_pages can migrate > away those pages, and the hugetlb page check can go too since > iso

[PATCH v8 7/7] mm,page_alloc: Drop unnecessary checks from pfn_range_valid_contig

pfn_range_valid_contig() bails out when it finds an in-use page or a hugetlb page, among other things. We can drop the in-use page check since __alloc_contig_pages can migrate away those pages, and the hugetlb page check can go too since isolate_migratepages_range is now capable of dealing with hug