Re: [PATCH v3 -next 4/9] DMA, CMA: support arbitrary bitmap granularity

2014-06-19 Thread Joonsoo Kim
On Wed, Jun 18, 2014 at 01:48:15PM -0700, Andrew Morton wrote: On Mon, 16 Jun 2014 14:40:46 +0900 Joonsoo Kim iamjoonsoo@lge.com wrote: PPC KVM's CMA area management requires arbitrary bitmap granularity, since they want to reserve very large memory and manage this region with bitmap

Re: [PATCH v3 -next 4/9] DMA, CMA: support arbitrary bitmap granularity

2014-06-18 Thread Andrew Morton
On Mon, 16 Jun 2014 14:40:46 +0900 Joonsoo Kim iamjoonsoo@lge.com wrote: PPC KVM's CMA area management requires arbitrary bitmap granularity, since they want to reserve very large memory and manage this region with bitmap that one bit for several pages to reduce management overheads. So

[PATCH v3 -next 4/9] DMA, CMA: support arbitrary bitmap granularity

2014-06-15 Thread Joonsoo Kim
PPC KVM's CMA area management requires arbitrary bitmap granularity, since they want to reserve very large memory and manage this region with bitmap that one bit for several pages to reduce management overheads. So support arbitrary bitmap granularity for following generalization. v3: use