[PATCH v34 11/24] x86/sgx: Add SGX enclave driver

[Sean Christopherson]

On Tue, Jul 07, 2020 at 05:39:04AM +0100, Matthew Wilcox wrote:
> although I think you have a simpler task.
> 
> 	XA_STATE(xas, ..., start_index);
> 
> 	for (;;) {
> 		struct page *page = xas_next(&xas);
> 
> 		if (!page || (~page->vm_max_prot_bits & vm_prot_bits))
> 			return -EACCES;
> 	}
> 
> 	return 0;
> 
> should do the trick, I think.

Ah, neato.  Thanks!