The patch titled
Subject: userfaultfd: selftest: explicit failure if the SIGBUS test failed
has been added to the -mm tree. Its filename is
userfaultfd-selftest-explicit-failure-if-the-sigbus-test-failed.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/userfaultfd-selftest-explicit-failure-if-the-sigbus-test-failed.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/userfaultfd-selftest-explicit-failure-if-the-sigbus-test-failed.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
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------------------------------------------------------
From: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Subject: userfaultfd: selftest: explicit failure if the SIGBUS test failed
Showing zero in the output isn't very self explanatory as a successful
result. Show a more explicit error output if the test fails.
Link: http://lkml.kernel.org/r/20170802165145.22628-4-aarcange@xxxxxxxxxx
Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: "Dr. David Alan Gilbert" <dgilbert@xxxxxxxxxx>
Cc: Alexey Perevalov <a.perevalov@xxxxxxxxxxx>
Cc: Maxime Coquelin <maxime.coquelin@xxxxxxxxxx>
Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Cc: Mike Rapoport <rppt@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/vm/userfaultfd.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff -puN tools/testing/selftests/vm/userfaultfd.c~userfaultfd-selftest-explicit-failure-if-the-sigbus-test-failed tools/testing/selftests/vm/userfaultfd.c
--- a/tools/testing/selftests/vm/userfaultfd.c~userfaultfd-selftest-explicit-failure-if-the-sigbus-test-failed
+++ a/tools/testing/selftests/vm/userfaultfd.c
@@ -986,7 +986,9 @@ static int userfaultfd_sig_test(void)
return 1;
printf("done.\n");
- printf(" Signal test userfaults: %ld\n", userfaults);
+ if (userfaults)
+ fprintf(stderr, "Signal test failed, userfaults: %ld\n",
+ userfaults);
close(uffd);
return userfaults != 0;
}
_
Patches currently in -mm which might be from aarcange@xxxxxxxxxx are
userfaultfd-hugetlbfs-remove-superfluous-page-unlock-in-vm_shared-case.patch
userfaultfd-selftest-exercise-uffdio_copy-zeropage-eexist.patch
userfaultfd-selftest-explicit-failure-if-the-sigbus-test-failed.patch
userfaultfd-call-userfaultfd_unmap_prep-only-if-__split_vma-succeeds.patch
userfaultfd-provide-pid-in-userfault-msg-add-feat-union.patch
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