On 9/25/20 6:59 AM, Joonsoo Kim wrote: > 2020년 8월 28일 (금) 오전 8:54, Joonsoo Kim <js1304@xxxxxxxxx>님이 작성: > > Hello, Andrew and Vlastimil. > > It's better to fix this possible bug introduced in v5.9-rc1 before > v5.9 is released. > Which approach do you prefer? > If it is determined, I will immediately send a patch as you suggested. Hmm both Mel and I preferred the bypass approach and nobody else weighted in, so if you don't mind, you can use my suggestion. Hmm maybe alloc_flags & ALLOC_CMA check should precede migratetype check in the if () to optimize for userspace allocations? Thanks, Vlastimil > Thanks. >