From: Christoph Hellwig [mailto:email@example.com]
Either way we need to get rid of buffer_heads, and another aop that
caller specific is unaceptable.
I finally figured out what you actually meant by this. You mean that instead of having an
aop->populate_pfn, you want to define a populate_pfn_t callback and pass it in.
Something like this:
int ext2_populate_pfn(struct address_space *mapping, pgoff_t pgoff)
struct iomap iomap;
return dax_populate_pfn(mapping, pgoff, &iomap);
int ext2_dax_fault(vma, vmf)
ret = dax_fault(vma, vmf, ext2_populate_pfn);
I don't have a problem with that. I'll work up something along those lines next