[openib-general] Re: [PATCH] arch/xx/pci: remap_pfn_range -> io_remap_pfn_range
Greg KH
gregkh at suse.de
Wed Jul 27 21:26:07 PDT 2005
On Tue, Jul 26, 2005 at 01:32:00AM +0300, Michael S. Tsirkin wrote:
> Greg, Martin, does the following make sense?
> If it does, should other architectures be updated as well?
>
> ---
>
> Convert i386/pci to use io_remap_pfn_range instead of remap_pfn_range.
>
> Signed-off-by: Michael S. Tsirkin <mst at mellanox.co.il>
>
> Index: linux-2.6.12.2/arch/i386/pci/i386.c
> ===================================================================
> --- linux-2.6.12.2.orig/arch/i386/pci/i386.c
> +++ linux-2.6.12.2/arch/i386/pci/i386.c
> @@ -295,9 +295,9 @@ int pci_mmap_page_range(struct pci_dev *
> /* Write-combine setting is ignored, it is changed via the mtrr
> * interfaces on this platform.
> */
> - if (remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
> - vma->vm_end - vma->vm_start,
> - vma->vm_page_prot))
> + if (io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
> + vma->vm_end - vma->vm_start,
> + vma->vm_page_prot))
Hm, you do realize that io_remap_pfn_range() is the same thing as
remap_pfn_range() on i386, right?
So, why would this patch change anything?
thanks,
greg k-h
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