Re: [PATCH v5 0/6] Introduce ZONE_CMA

[Joonsoo Kim]

2016-08-29 18:27 GMT+09:00 Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>:
> js1304@xxxxxxxxx writes:
>
>> From: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
>>
>> Hello,
>>
>> Changes from v4
>> o Rebase on next-20160825
>> o Add general fix patch for lowmem reserve
>> o Fix lowmem reserve ratio
>> o Fix zone span optimizaion per Vlastimil
>> o Fix pageset initialization
>> o Change invocation timing on cma_init_reserved_areas()
>
> I don't see much information regarding how we interleave between
> ZONE_CMA and other zones for movable allocation. Is that explained in
> any of the patch ? The fair zone allocator got removed by
> e6cbd7f2efb433d717af72aa8510a9db6f7a7e05

Interleaving would not work since the fair zone allocator policy is removed.
I don't think that it's a big problem because it is just matter of
timing to fill
up the memory. Eventually, memory on ZONE_CMA will be fully used in
any case.

Thanks.