On 10/10/2014 06:21 AM, Fengwei Yin wrote: > @@ -787,6 +788,9 @@ check_pfn: > return NULL; > } > > + if (is_huge_zero_pfn(pfn)) > + return NULL; > + That looks a lot better. One thing, why not put the is_huge_zero_pfn() check next to the is_zero_pfn() check? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>