diff mbox series

[v4,08/12] selftests/mm: Skip gup_longterm tests on weird filesystems

Message ID 20250311-mm-selftests-v4-8-dec210a658f5@google.com (mailing list archive)
State New
Headers show
Series selftests/mm: Some cleanups from trying to run them | expand

Commit Message

Brendan Jackman March 11, 2025, 1:18 p.m. UTC 
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 mbox series

Patch

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;
 	}