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Howlett" , Lance Yang , Leon Romanovsky , Lorenzo Stoakes , Luiz Capitulino , 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: <20260428204240.1924129-1-rppt@kernel.org> <20260428204240.1924129-37-rppt@kernel.org> From: Sarthak Sharma Content-Language: en-US In-Reply-To: <20260428204240.1924129-37-rppt@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-ClientProxiedBy: MA5P287CA0137.INDP287.PROD.OUTLOOK.COM (2603:1096:a01:1d2::13) 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_|GV2PR08MB8486:EE_|AMS1EPF00000042:EE_|VE1PR08MB5664:EE_ X-MS-Office365-Filtering-Correlation-Id: ca4f369e-2c2d-440e-96a5-08deac1ebc4f x-checkrecipientrouted: true NoDisclaimer: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0;ARA:13230040|366016|1800799024|376014|7416014|18002099003|22082099003|56012099003; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: YhemJH6rylGngJKHjzLZ82rdj2sL1tgwN4rSmBm6Y+/hJDRA6KgLjVt8FykQh9E4vin3h29cagobODvwF2/Bz5uqVK9fnVufTJ6ItnHmu9UplWnGwXWhFcCDhuZk8R3vhdUEa9vzRZvtYpwWTPuztJ+MvhxBul1JwVDwmMBRCElLOGok/2F4s4paQX2zS61MILDwUtV7FSGBwm2L6HGdLiNbi9+88b4XqMcbFbnQKK4gp+Yhzwd6igvcYAmRXd31i+v0a/6ft+vrIiFv/gERcUbDs0KA2neM3mG+Mw3j6//aiZ3sYalCKGzuL1G4trcnSB1vqQ4xcGbsjFmih/Ub4uOk/vA1FMcrqAcHNGCXhAkCZcsqw3HM+Onph67g7thLlILu2W0kIG2Wnka9fYnAdjOeXR88PYj4pYjYuUuwlNl7Raz+DKXd3pon9kHGHIvg X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 May 2026 09:55:14.0554 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ca4f369e-2c2d-440e-96a5-08deac1ebc4f X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[4.158.2.129];Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: AMS1EPF00000042.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR08MB5664 On 4/29/26 2:12 AM, Mike Rapoport wrote: > From: "Mike Rapoport (Microsoft)" > > hugetlb_fault_after_madv test skips testing if there are no free huge > pages prepared by a wrapper script. > > Add setup of HugeTLB pages to the test and make sure that the original > settings are restored on the test exit. > > Signed-off-by: Mike Rapoport (Microsoft) I have run the test before and after applying the patch. Before the patch, the test skipped if there was not exactly 1 free hugepage available. After the patch, it correctly allocates one hugepage and the test passes successfully, restoring the original hugepage settings on exit. Tested-by: Sarthak Sharma > --- > tools/testing/selftests/mm/hugetlb_fault_after_madv.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) > > diff --git a/tools/testing/selftests/mm/hugetlb_fault_after_madv.c b/tools/testing/selftests/mm/hugetlb_fault_after_madv.c > index c718dd065d53..481863cc5fda 100644 > --- a/tools/testing/selftests/mm/hugetlb_fault_after_madv.c > +++ b/tools/testing/selftests/mm/hugetlb_fault_after_madv.c > @@ -54,7 +54,6 @@ void *madv(void *unused) > > int main(void) > { > - unsigned long free_hugepages; > pthread_t thread1, thread2; > /* > * On kernel 6.4, we are able to reproduce the problem with ~1000 > @@ -78,10 +77,9 @@ int main(void) > ksft_print_msg("[INFO] detected default hugetlb page size: %zu KiB\n", > huge_page_size / 1024); > > - free_hugepages = hugetlb_free_default_pages(); > - if (free_hugepages != 1) { > + if (!hugetlb_setup_default(1)) { > ksft_exit_skip("This test needs one and only one page to execute. Got %lu\n", > - free_hugepages); > + hugetlb_free_default_pages()); > } > > while (max--) {