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Howlett" , Lance Yang , Leon Romanovsky , Lorenzo Stoakes , Mark Brown , Michal Hocko , Nico Pache , Peter Xu , Ryan Roberts , Shuah Khan , Suren Baghdasaryan , Vlastimil Babka , Zi Yan , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org References: <20260418105539.1261536-1-rppt@kernel.org> <20260418105539.1261536-9-rppt@kernel.org> From: Sarthak Sharma Content-Language: en-US In-Reply-To: <20260418105539.1261536-9-rppt@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-ClientProxiedBy: MA5P287CA0041.INDP287.PROD.OUTLOOK.COM (2603:1096:a01:175::15) To DU0PR08MB9203.eurprd08.prod.outlook.com (2603:10a6:10:417::12) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-TrafficTypeDiagnostic: DU0PR08MB9203:EE_|PA4PR08MB6288:EE_|DB5PEPF00014B9F:EE_|DU5PR08MB10466:EE_ X-MS-Office365-Filtering-Correlation-Id: 3e29199a-8148-4017-cb7f-08dea06ae552 x-checkrecipientrouted: true NoDisclaimer: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0;ARA:13230040|1800799024|366016|376014|7416014|18002099003|22082099003|56012099003; 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On 4/18/26 4:24 PM, Mike Rapoport wrote: > From: "Mike Rapoport (Microsoft)" > > Convert hugetlb-vmemmap test to use kselftest framework for reporting > and tracking successful and failing runs. > > Reviewed-by: Mark Brown > Reviewed by: Donet Tom > Signed-off-by: Mike Rapoport (Microsoft) I have run the test before and after applying the patch. The patch correctly formats the output according to KTAP format with no change in results. Tested-by: Sarthak Sharma > --- > tools/testing/selftests/mm/hugetlb-vmemmap.c | 42 +++++++++----------- > 1 file changed, 18 insertions(+), 24 deletions(-) > > diff --git a/tools/testing/selftests/mm/hugetlb-vmemmap.c b/tools/testing/selftests/mm/hugetlb-vmemmap.c > index df366a4d1b92..485a6978b40f 100644 > --- a/tools/testing/selftests/mm/hugetlb-vmemmap.c > +++ b/tools/testing/selftests/mm/hugetlb-vmemmap.c > @@ -63,7 +63,7 @@ static int check_page_flags(unsigned long pfn) > read(fd, &pageflags, sizeof(pageflags)); > if ((pageflags & HEAD_PAGE_FLAGS) != HEAD_PAGE_FLAGS) { > close(fd); > - printf("Head page flags (%lx) is invalid\n", pageflags); > + ksft_print_msg("Head page flags (%lx) is invalid\n", pageflags); > return -1; > } > > @@ -77,7 +77,7 @@ static int check_page_flags(unsigned long pfn) > if ((pageflags & TAIL_PAGE_FLAGS) != TAIL_PAGE_FLAGS || > (pageflags & HEAD_PAGE_FLAGS) == HEAD_PAGE_FLAGS) { > close(fd); > - printf("Tail page flags (%lx) is invalid\n", pageflags); > + ksft_print_msg("Tail page flags (%lx) is invalid\n", pageflags); > return -1; > } > } > @@ -91,44 +91,38 @@ int main(int argc, char **argv) > { > void *addr; > unsigned long pfn; > + int ret; > + > + ksft_print_header(); > + ksft_set_plan(1); > > pagesize = psize(); > maplength = default_huge_page_size(); > - if (!maplength) { > - printf("Unable to determine huge page size\n"); > - exit(1); > - } > + if (!maplength) > + ksft_exit_skip("Unable to determine huge page size\n"); > > addr = mmap(NULL, maplength, PROT_READ | PROT_WRITE, > MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB, -1, 0); > - if (addr == MAP_FAILED) { > - perror("mmap"); > - exit(1); > - } > + if (addr == MAP_FAILED) > + ksft_exit_fail_perror("mmap"); > > /* Trigger allocation of HugeTLB page. */ > write_bytes(addr, maplength); > > pfn = virt_to_pfn(addr); > if (pfn == -1UL) { > + ksft_perror("virt_to_pfn"); > munmap(addr, maplength); > - perror("virt_to_pfn"); > - exit(1); > + ksft_exit_fail(); > } > > - printf("Returned address is %p whose pfn is %lx\n", addr, pfn); > + ksft_print_msg("Returned address is %p whose pfn is %lx\n", addr, pfn); > > - if (check_page_flags(pfn) < 0) { > - munmap(addr, maplength); > - perror("check_page_flags"); > - exit(1); > - } > + ret = check_page_flags(pfn); > > - /* munmap() length of MAP_HUGETLB memory must be hugepage aligned */ > - if (munmap(addr, maplength)) { > - perror("munmap"); > - exit(1); > - } > + if (munmap(addr, maplength)) > + ksft_exit_fail_perror("munmap"); > > - return 0; > + ksft_test_result(!ret, "HugeTLB vmemmap page flags\n"); > + ksft_finished(); > }