On Thu, Mar 30, 2023 at 12:07:52PM -0400, Peter Xu wrote: > +int uffd_open(unsigned int flags) > +{ > + int uffd = uffd_open_sys(flags); > + > + if (uffd < 0) > + uffd = uffd_open_dev(flags); > + > + return uffd; > +} A (benign) accident when rebasing here.. I'll move this function into "selftests/mm: Add framework for uffd-unit-test" which is its first usage. -- Peter Xu