Re: [patch 1/5] mm: remap_vmalloc_range

[Nick Piggin]

On Fri, Apr 21, 2006 at 09:41:57AM +0200, Nick Piggin wrote:
> On Fri, Apr 21, 2006 at 12:29:38AM -0700, Andrew Morton wrote:
> > 
> > When replacing calls to remap_pfn_rage() with calls to remap_valloc_range():
> > 
> > - remap_pfn_range() sets VM_IO|VM_RESERVED|VM_PFNMAP on the user's vma. 
> >   remap_valloc_range() sets only VM_RESERVED.
> 
> Yep, it doesn't use PFNMAPs (we can always user the underlying struct
>  page), nor is it IO space. The only change that should be seen, as
> noted in patch 4/5, is that get_user_pages will work on all mappings
> now. I don't think there is a downside to this?

By "change that should be seen", I mean the only change that
userspace should see.
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