Re: Make drivers/char/mem.c use remap_pfn_range()

[William Lee Irwin III <wli@holomorphy.com>]

On Fri, 22 Oct 2004, William Lee Irwin III wrote:
>> What I posted shifted the correct argument, though vma->vm_pgoff would
>> have been been better, as it shifted offset right by PAGE_SHIFT, where
>> offset could have overflowed. I have no idea what you're referring to
>> about shifting the wrong argument.

On Fri, Oct 22, 2004 at 08:09:07AM -0700, Linus Torvalds wrote:
> Ok, that patch just got lost.
> Quite as well, actually. The whole point of changing remap_page_range() to 
> remap_pfn_range() is to give the full range of page frame numbers, and 
> just shifting "offset" back down thus seems to be a bug to me. Otherwise 
> we migth as well just have continued with the old code.

What I had intended to be the functional improvements were in the arch
code for pci_mmap_page_range(), but I would say the mem.c change beyond
my own changes is an improvement. All is well.


-- wli