Re: [PATCH 1/1] ARM: dma-mapping: Drop GFP_COMP for DMA memory allocations

2013-10-16 Thread Will Deacon
On Wed, Oct 16, 2013 at 11:19:13AM +0100, Hiroshi Doyu wrote: > arm_iommu_alloc_attrs wants to split pages after allocation in order > to reduce the memory footprint. This does not work well with GFP_COMP > pages, so drop this flag before allocation. > > ref: ea2e7057c0234cfb8b09467d8f137760d371fc

[PATCH 1/1] ARM: dma-mapping: Drop GFP_COMP for DMA memory allocations

2013-10-16 Thread Hiroshi Doyu
arm_iommu_alloc_attrs wants to split pages after allocation in order to reduce the memory footprint. This does not work well with GFP_COMP pages, so drop this flag before allocation. ref: ea2e7057c0234cfb8b09467d8f137760d371fc72: ARM: 7172/1: dma: Drop GFP_COMP for DMA memory allocations