Build on 4.10 fails #17
Description
This is from Ubuntu 16.04, which is based on 4.10.
xpmem_attach.c: In function xpmem_fault_handler:
xpmem_attach.c:172:41: error: struct vm_fault has no member named virtual_address
The kernel structure vm_fault changed from 4.9 to 4.10, replacing virtual_address with address. The xpmem source traps for this >= kernel 4.11, but doesn't handle 4.10 correctly. A quick attempt to change the kernel check from 4.11 to 4.10 did not work.
4.10 needs an xpmem_fault_handler() with 2 arguments, but the vaddr pulled from vmf->address. I.e. the else check from line 162, but the if check from line 168. Trying to select this option creates a duplicate variable (vma), and it's not clear to me which one to use.