On Mon, Apr 16, 2018 at 09:14:48AM -0700, Dan Williams wrote: > > - rc = vm_insert_mixed(vmf->vma, vmf->address, pfn); > > - > > - if (rc == -ENOMEM) > > - return VM_FAULT_OOM; > > - if (rc < 0 && rc != -EBUSY) > > - return VM_FAULT_SIGBUS; > > - > > - return VM_FAULT_NOPAGE; > > + return vmf_insert_mixed(vmf->vma, vmf->address, pfn); > > Ugh, so this change to vmf_insert_mixed() went upstream without fixing > the users? This changelog is now misleading as it does not mention > that is now an urgent standalone fix. On first read I assumed this was > part of a wider effort for 4.18. You read too quickly. vmf_insert_mixed() is a *new* function which *replaces* vm_insert_mixed() and awful-mangling-of-return-values-done-per-driver. Eventually vm_insert_mixed() will be deleted. But today is not that day.