From: Peter Xu <peterx@xxxxxxxxxx> Subject: userfaultfd/selftests: always dump something in modes Patch series "userfaultfd: selftests: Small fixes". Some very trivial fixes that I kept locally to userfaultfd selftest program. This patch (of 3): BOUNCE_POLL is a special bit that if cleared it means "READ" instead. Dump that too otherwise we'll see tests with empty modes. Link: https://lkml.kernel.org/r/20201208024709.7701-1-peterx@xxxxxxxxxx Link: https://lkml.kernel.org/r/20201208024709.7701-2-peterx@xxxxxxxxxx Signed-off-by: Peter Xu <peterx@xxxxxxxxxx> Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx> Cc: Mike Rapoport <rppt@xxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/vm/userfaultfd.c | 2 ++ 1 file changed, 2 insertions(+) --- a/tools/testing/selftests/vm/userfaultfd.c~userfaultfd-selftests-always-dump-something-in-modes +++ a/tools/testing/selftests/vm/userfaultfd.c @@ -1291,6 +1291,8 @@ static int userfaultfd_stress(void) printf(" ver"); if (bounces & BOUNCE_POLL) printf(" poll"); + else + printf(" read"); printf(", "); fflush(stdout); _
