lkml.org 
[lkml]   [2017]   [Oct]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] arm64: use vma_pages helper
From
Date
On 05/10/17 13:16, Allen Pais wrote:
> Use vma_pages function on vma object instead of explicit computation.
> This is a clean up patch.

A version of this is already queued for -next here:

https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git/commit/?h=for-next/core&id=b4f4a2755665bf847231050b569f587ce0945482

Thanks,
Robin.

> Signed-off-by: Allen Pais <allen.pais@oracle.com>
> ---
> arch/arm64/mm/dma-mapping.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
> index 614af88..5f62090 100644
> --- a/arch/arm64/mm/dma-mapping.c
> +++ b/arch/arm64/mm/dma-mapping.c
> @@ -303,8 +303,7 @@ static int __swiotlb_mmap_pfn(struct vm_area_struct *vma,
> unsigned long pfn, size_t size)
> {
> int ret = -ENXIO;
> - unsigned long nr_vma_pages = (vma->vm_end - vma->vm_start) >>
> - PAGE_SHIFT;
> + unsigned long nr_vma_pages = vma_pages(vma);
> unsigned long nr_pages = PAGE_ALIGN(size) >> PAGE_SHIFT;
> unsigned long off = vma->vm_pgoff;
>
>

\
 
 \ /
  Last update: 2017-10-05 14:22    [W:0.087 / U:0.584 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site