Re: [kvm-devel] [PATCH] Handle vma regions with no backing page (v2)

[Hollis B. <ho...@us...>]

On Tuesday 29 April 2008 18:12:51 Anthony Liguori wrote:
> IIUC PPC correctly, all IO pages have corresponding struct pages.  This 
> means that get_user_pages() would succeed and you can reference count 
> them?  In this case, we would never take the VM_PFNMAP path.
> 
> Is that correct?

I think Andrea's answered this, but for the record: I believe ioremap() will 
get you struct pages on PPC, but they don't automatically exist.

-- 
Hollis Blanchard
IBM Linux Technology Center