Some filesystems don't support ftruncate()ing unlinked files. They return ENOENT. In that case, skip the test.
Signed-off-by: Brendan Jackman jackmanb@google.com --- tools/testing/selftests/mm/gup_longterm.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/mm/gup_longterm.c b/tools/testing/selftests/mm/gup_longterm.c index 15335820656b1c143b440b8a1065a025378e22a2..03271442aae5aed060fd44010df552a2eedcdafc 100644 --- a/tools/testing/selftests/mm/gup_longterm.c +++ b/tools/testing/selftests/mm/gup_longterm.c @@ -96,7 +96,15 @@ static void do_test(int fd, size_t size, enum test_type type, bool shared) int ret;
if (ftruncate(fd, size)) { - ksft_test_result_fail("ftruncate() failed (%s)\n", strerror(errno)); + if (errno == ENOENT) { + /* + * This can happen if the file has been unlinked and the + * filesystem doesn't support truncating unlinked files. + */ + ksft_test_result_skip("ftruncate() failed with ENOENT\n"); + } else { + ksft_test_result_fail("ftruncate() failed (%s)\n", strerror(errno)); + } return; }