Nick Piggin wrote:
What about
int get_xip_mem(mapping, pgoff, create, void **kaddr, unsigned long *pfn)
get_xip_mem(mapping, pgoff, create, &addr, &pfn);
if (pagefault)
vm_insert_mixed(vma, vaddr, pfn);
else if (read/write) {
memcpy(kaddr, blah, sizeof);
My simple brd driver can easily do
*kaddr = page_address(page);
*pfn = page_to_pfn(page);
This should work for you too?
Looks good to me. Otoh, if there is an easy way to fix virt_to_phys()
I would like that better.
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