diff --git a/tools/testing/selftests/mm/guard-regions.c b/tools/testing/selftests/mm/guard-regions.c index b21df3040b1c..5c8ec3ca75d7 100644 --- a/tools/testing/selftests/mm/guard-regions.c +++ b/tools/testing/selftests/mm/guard-regions.c @@ -1912,7 +1912,7 @@ TEST_F(guard_regions, hole_punch) { const unsigned long page_size = self->page_size; char *ptr; - int i; + int i, ret; if (variant->backing == ANON_BACKED) SKIP(return, "Truncation test specific to file-backed"); @@ -1944,8 +1944,12 @@ TEST_F(guard_regions, hole_punch) } /* Now hole punch the guarded region. */ - ASSERT_EQ(madvise(&ptr[3 * page_size], 4 * page_size, - MADV_REMOVE), 0); + ret = madvise(&ptr[3 * page_size], 4 * page_size, MADV_REMOVE); + if (ret == -1 && errno == EOPNOTSUPP) { + ASSERT_EQ(munmap(ptr, 10 * page_size), 0); + SKIP(return, "MADV_REMOVE not supported by filesystem"); + } + ASSERT_EQ(ret, 0); /* Ensure guard regions remain. */ for (i = 0; i < 10; i++) {