On Fri, Aug 14, 2009 at 09:34:15AM +0200, Ithamar R. Adema wrote:
> Daniel Glöckner wrote:
> > if (size > (vma->vm_end - from) >> PAGE_SHIFT)
> > return -EINVAL;
I should have read the mmu version first.
This must be
if (size > vma->vm_end - from)
return -EINVAL;
as size is in bytes, not pages.
> This looks good, though dma_mmap() in arch/arm/mm/consistent-nommu.c
> passes wrong parameters and fail :( I'll take a closer look at this
> during the weekend...
dma_mmap looks good. If it doesn't work after the above change, the
caller of dma_mmap may need to implement get_unmapped_area to set
vma->vm_start.
Daniel
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