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GET /api/patches/2220081/?format=api
{ "id": 2220081, "url": "http://patchwork.ozlabs.org/api/patches/2220081/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/e6ca6066c0869cf58c6fbef59ea2d35547cabc6d.1775466330.git.sayalip@linux.ibm.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<e6ca6066c0869cf58c6fbef59ea2d35547cabc6d.1775466330.git.sayalip@linux.ibm.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/e6ca6066c0869cf58c6fbef59ea2d35547cabc6d.1775466330.git.sayalip@linux.ibm.com/", "date": "2026-04-06T09:19:33", "name": "[v4,14/15] selftests/mm: clarify alternate unmapping in compaction_test", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "97e2061fb0152a922f77076e98dab734b59304c8", "submitter": { "id": 92656, "url": "http://patchwork.ozlabs.org/api/people/92656/?format=api", "name": "Sayali Patil", "email": "sayalip@linux.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/e6ca6066c0869cf58c6fbef59ea2d35547cabc6d.1775466330.git.sayalip@linux.ibm.com/mbox/", "series": [ { "id": 498833, "url": "http://patchwork.ozlabs.org/api/series/498833/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=498833", "date": "2026-04-06T09:19:22", "name": "selftests/mm: fix failures and robustness improvements", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/498833/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2220081/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2220081/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linuxppc-dev+bounces-19396-incoming=patchwork.ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=NY/AE8em;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=2404:9400:21b9:f100::1; helo=lists.ozlabs.org;\n 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bh=pBqdS5nVcWPMjB8CE\n\tBH752E10Mp8905KEGmdHXqnGYM=; b=NY/AE8emcXIDAWqeHGkVPFPvm8XooucK4\n\tV1qEeyPnF8vCnKLZqKkDv6bXPcYavYjcfiLRv3VpImxYeucHkimhQ90fwNS0tv8Q\n\tpRu8H7eq67Eabw67wy4ksdQaHIsKqqwmcLwDltxdh4TzI5XeSzo+T1n58MZtjQHK\n\toZKRqUL4SPKtHS6hCw9x7vNSoFqB4Jnbp+uHZNYM0yH/m8JcO3om9j3XvBbPorQp\n\t0pYdVlQR7KvZVzOGwOLzj0tjssDispGfqUYoJDNxq/rNi8Z/qFQ6VvTAZ6uAQ6pj\n\t6g338AkAK1htk+nqbEag8m+grhRT4/hj+cPdkp/77cYy2qXOdOR+Q==", "From": "Sayali Patil <sayalip@linux.ibm.com>", "To": "Andrew Morton <akpm@linux-foundation.org>, Shuah Khan <shuah@kernel.org>,\n linux-mm@kvack.org, linux-kernel@vger.kernel.org,\n linux-kselftest@vger.kernel.org,\n Ritesh Harjani <ritesh.list@gmail.com>", "Cc": "David Hildenbrand <david@kernel.org>, Zi Yan <ziy@nvidia.com>,\n Michal Hocko <mhocko@kernel.org>, Oscar Salvador <osalvador@suse.de>,\n Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,\n Dev Jain <dev.jain@arm.com>, Liam.Howlett@oracle.com,\n linuxppc-dev@lists.ozlabs.org, Miaohe Lin <linmiaohe@huawei.com>,\n Venkat Rao Bagalkote <venkat88@linux.ibm.com>,\n Sayali Patil <sayalip@linux.ibm.com>", "Subject": "[PATCH v4 14/15] selftests/mm: clarify alternate unmapping in\n compaction_test", "Date": "Mon, 6 Apr 2026 14:49:33 +0530", "Message-ID": "\n <e6ca6066c0869cf58c6fbef59ea2d35547cabc6d.1775466330.git.sayalip@linux.ibm.com>", "X-Mailer": "git-send-email 2.52.0", "In-Reply-To": "<cover.1775466329.git.sayalip@linux.ibm.com>", "References": "<cover.1775466329.git.sayalip@linux.ibm.com>", "X-Mailing-List": "linuxppc-dev@lists.ozlabs.org", "List-Id": "<linuxppc-dev.lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev+help@lists.ozlabs.org>", "List-Owner": "<mailto:linuxppc-dev+owner@lists.ozlabs.org>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Archive": "<https://lore.kernel.org/linuxppc-dev/>,\n <https://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Subscribe": "<mailto:linuxppc-dev+subscribe@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-digest@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-nomail@lists.ozlabs.org>", "List-Unsubscribe": "<mailto:linuxppc-dev+unsubscribe@lists.ozlabs.org>", "Precedence": "list", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-TM-AS-GCONF": "00", "X-Proofpoint-Reinject": "loops=2 maxloops=12", "X-Authority-Analysis": "v=2.4 cv=J6anLQnS c=1 sm=1 tr=0 ts=69d37ae8 cx=c_pps\n a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17\n a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22\n a=iQ6ETzBq9ecOQQE5vZCe:22 a=VnNF1IyMAAAA:8 a=drp7DlKwS4wFpybDI60A:9\n a=ZXulRonScM0A:10", "X-Proofpoint-GUID": "mqojUT3DmpMioyJHmt3KvQPAQkRaaDlZ", "X-Proofpoint-ORIG-GUID": "19LRlPIFPDuzkGxRK8_l-LF11lGhtkKQ", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwNDA2MDA5MCBTYWx0ZWRfX+PdhhPBXeUrs\n qBNQXlMPWA7f+tki8SwCHi0vHgFWvjAfcpSle1z5ZP1KDPAUWDlg5SgWZ7wbFYsdU/+gWK0VcvV\n IFy1h0aOUJDUWdxWWFPr1yzctgBz4EwK/RG6NcsBvgVpz93sHj8TlR8zd4Rb3bF0jJG0SIFrt9U\n v8W2iOl0cWTVeJe6lGqk9ZUU1boNY0AuVnOGnFSCOJExDBpa/3nhQw3YiHbfwXq8YCElnM1lmlL\n S3yyxZ8B0MstX/W3MxydYGEF6+I5M1XuO0SfcNzw1qFvcRDXsoItXOXsZonVbApwQ9F8uqSa1UZ\n O+hgfGnaep5cUGVoFIDEaNOh4X+HSGOuN+yiPmkc8dIq5rW5qgvDRRnjZxbekWbQ3WYPi/CVUqC\n qRXhR62Xf6pIR9wkk2BNywoIP3rYj9FJHxcpBwNX4sDDwlMpjN4qkVr/p8KUhSCKMzNV27vecMs\n 3MY/qLyDnwO96lTT4QQ==", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-06_02,2026-04-03_01,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n spamscore=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 clxscore=1015\n impostorscore=0 phishscore=0 malwarescore=0 suspectscore=0 adultscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2604060090", "X-Spam-Status": "No, score=-0.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID,\n\tRCVD_IN_DNSWL_LOW,RCVD_IN_MSPIKE_H4,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,\n\tSPF_PASS autolearn=disabled version=4.0.1 OzLabs 8", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org" }, "content": "Add a comment explaining that every other entry in the list is\nunmapped to intentionally create fragmentation with\nlocked pages before invoking check_compaction().\n\nFixes: bd67d5c15cc1 (\"Test compaction of mlocked memory\")\nSigned-off-by: Sayali Patil <sayalip@linux.ibm.com>\n---\n tools/testing/selftests/mm/compaction_test.c | 3 +++\n 1 file changed, 3 insertions(+)", "diff": "diff --git a/tools/testing/selftests/mm/compaction_test.c b/tools/testing/selftests/mm/compaction_test.c\nindex 30209c40b697..e1610e2fbdf6 100644\n--- a/tools/testing/selftests/mm/compaction_test.c\n+++ b/tools/testing/selftests/mm/compaction_test.c\n@@ -261,6 +261,9 @@ int main(int argc, char **argv)\n \t\tmem_fragmentable_MB -= MAP_SIZE_MB;\n \t}\n \n+\t/* Unmap every other entry in the list to create fragmentation with\n+\t * locked pages before invoking check_compaction().\n+\t */\n \tfor (entry = list; entry != NULL; entry = entry->next) {\n \t\tmunmap(entry->map, MAP_SIZE);\n \t\tif (!entry->next)\n", "prefixes": [ "v4", "14/15" ] }