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Thu, 9 Apr 2026 11:01:15 +0000 (GMT) Message-ID: <85b3ac61-cfb0-46f8-97eb-c83dba02a085@linux.ibm.com> Date: Thu, 9 Apr 2026 16:31:13 +0530 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 08/53] selftests/mm: hugetlb-vmemmap: use kselftest framework To: Mike Rapoport , Andrew Morton , David Hildenbrand Cc: Baolin Wang , Barry Song , Dev Jain , Jason Gunthorpe , John Hubbard , "Liam R. 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: <20260406141735.2179309-1-rppt@kernel.org> <20260406141735.2179309-9-rppt@kernel.org> Content-Language: en-US From: Donet Tom In-Reply-To: <20260406141735.2179309-9-rppt@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDA5MDA5NyBTYWx0ZWRfX2b9BjQ4wVTo/ WEGRAqqmJxYjHsV9JIl56tJYQW9Jev4Q2f6oGmLzQ5jFtS+2aYQW63pKX85vdh3F4v3d25rCJXo zSMHx25KOUmYE2bpdSs9d//4zMXVunYmy56a5UibicGR1jSJR9S3cYr/lsxO5uhoP2CntMSnndr jCrLqNnTflGC/MIHfSMupHcYwzPVARBHQH0t4lTMKuLKRrD8Fs5uUvKXP5GTwiDeEPypPjTuX2H GGeAlqYzs2XMlhva/U++Xw3HIBJ2SSL2GbPjB+wp+1ONdYYfyyo7kfbaZLBRKrkLV5AlC5T7Hsq 48oZx7DCf1o8y3QnE7y9nhvtECU+dw3wpZ0MtTAFrbhFOEUnMNgiJwI0QW4W+8Xa9LdzdmZ/i3V ZNi6cykiKqqOQkJG2vFLV1f/n7aVxlOvh3zSMvDv2SqrWrB40iz/dDMVTrX/8JMMmLocjw3nGU4 D00o+zTSzKRqv8vbdTg== X-Proofpoint-GUID: jRYhCQLN8hKYG8nSPO3I2m3eqY8sTPjN X-Authority-Analysis: v=2.4 cv=a/wAM0SF c=1 sm=1 tr=0 ts=69d78705 cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=V8glGbnc2Ofi9Qvn3v5h:22 a=VwQbUJbxAAAA:8 a=VnNF1IyMAAAA:8 a=7NxCnIlu8LxO6o6IPQsA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-ORIG-GUID: 69WW6bf3RBaI6LryHGipT278zKZ93G8G X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-09_03,2026-04-09_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 clxscore=1015 spamscore=0 impostorscore=0 priorityscore=1501 phishscore=0 lowpriorityscore=0 adultscore=0 malwarescore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604010000 definitions=main-2604090097 X-Rspamd-Queue-Id: 819781C000A X-Stat-Signature: b38dz95zipxuzhn4b3dz4z8rb8if7hfx X-Rspam-User: X-Rspamd-Server: rspam10 X-HE-Tag: 1775732490-840473 X-HE-Meta: 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 lbbsWG6x tEcVUo6r44zpCF4rbjUyQXDpwfE0s9bHdbNzi6O9rDFraISr/jc9cLsNUYm40TsNaYCphGNwfM58dFmpa/bqEVjXvD+pDYTMtxi4LRVZwaDk0EKVum9Jhr3EvviSa6815xI40+eu55jvzzfyPy8FOSVJPW/S/QH6mjpfmpj8JwVJoodLhNINiKODIPwFcEgKfGJOto3MvkF2bJDEpOtY9zthb5EwpXw0fj05WHoRaSjAM1iIrYsKsaQ+CgHuJqj6Mc0bOKvPT8gVKVaYajq6k/5oqWi8vH03+9vfawjxKTxT7b3WZwwiKuZqQE1SqYSfpAAnKz1HHHrW7r+UVp9r9cosP+qGnDC591L728HQo4kA8WyUNk6be9egcMw== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 4/6/26 7:46 PM, Mike Rapoport wrote: > From: "Mike Rapoport (Microsoft)" > > Convert hugetlb-vmemmap test to use kselftest framework for reporting > and tracking successful and failing runs. > > Signed-off-by: Mike Rapoport (Microsoft) > --- > 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(); LGTM Reviewed by: Donet Tom -Donet > }