Re: [PATCH for v5.9] mm/page_alloc: handle a missing case for memalloc_nocma_{save/restore} APIs

[Joonsoo Kim]

2020년 9월 25일 (금) 오후 5:55, Vlastimil Babka <vbabka@xxxxxxx>님이 작성:
>
> 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?

Okay!
I will implement a bypass approach and send it early next week.

Thanks.