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 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 fo

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 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 support arbitrary bi