Re: [XenPPC] [PATCH] [RFC] Xencomm patch to fix modules

[Jimi Xenidis <jimix@xxxxxxxxxxxxxx>]

On Jan 18, 2007, at 4:26 PM, Hollis Blanchard wrote:

> On Thu, 2007-01-18 at 16:18 -0500, Jimi Xenidis wrote:
> > Hey, wouldn't virt_addr_valid() do?
> I can pass a perfectly "valid" virtual address that is within a
> physically discontiguous area of memory, and this function would  
> return
> 0.
hmm, I thought the page allocate in linux was contiguous, and:
fastcall void free_pages(unsigned long addr, unsigned int order)
{
        if (addr != 0) {
                BUG_ON(!virt_addr_valid((void *)addr));
                __free_pages(virt_to_page((void *)addr), order);
        }
}

-JX


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