Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/patches/2220084/?format=api
{ "id": 2220084, "url": "http://patchwork.ozlabs.org/api/patches/2220084/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/8beb895ae46c3e817e80cdd5386933cdcf8e233f.1775466329.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": "<8beb895ae46c3e817e80cdd5386933cdcf8e233f.1775466329.git.sayalip@linux.ibm.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/8beb895ae46c3e817e80cdd5386933cdcf8e233f.1775466329.git.sayalip@linux.ibm.com/", "date": "2026-04-06T09:19:20", "name": "[v4,01/15] selftests/mm: restore default nr_hugepages value via EXIT trap in charge_reserved_hugetlb.sh", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "6a6d910d98ef1c1ef2afff5eb18cc746ce5705ca", "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/8beb895ae46c3e817e80cdd5386933cdcf8e233f.1775466329.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/2220084/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2220084/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linuxppc-dev+bounces-19399-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=AePv7Mh6;\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 envelope-from=linuxppc-dev+bounces-19399-incoming=patchwork.ozlabs.org@lists.ozlabs.org;\n receiver=patchwork.ozlabs.org)", "lists.ozlabs.org;\n arc=none smtp.remote-ip=148.163.156.1", "lists.ozlabs.org;\n dmarc=pass (p=none dis=none) header.from=linux.ibm.com", "lists.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=AePv7Mh6;\n\tdkim-atps=neutral", "lists.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=linux.ibm.com\n (client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com;\n envelope-from=sayalip@linux.ibm.com; receiver=lists.ozlabs.org)" ], "Received": [ "from lists.ozlabs.org (lists.ozlabs.org\n [IPv6:2404:9400:21b9:f100::1])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fq3k22fzJz1y2d\n\tfor <incoming@patchwork.ozlabs.org>; Mon, 06 Apr 2026 19:21:46 +1000 (AEST)", "from boromir.ozlabs.org (localhost [127.0.0.1])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 4fq3jD1nFSz30Lw;\n\tMon, 06 Apr 2026 19:21:04 +1000 (AEST)", "from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com\n [148.163.156.1])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest\n SHA256)\n\t(No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 4fq3jC3Plxz2yhP\n\tfor <linuxppc-dev@lists.ozlabs.org>; Mon, 06 Apr 2026 19:21:03 +1000 (AEST)", "from pps.filterd (m0356517.ppops.net [127.0.0.1])\n\tby mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id\n 635HrobP3217351;\n\tMon, 6 Apr 2026 09:19:51 GMT", "from ppma12.dal12v.mail.ibm.com\n (dc.9e.1632.ip4.static.sl-reverse.com [50.22.158.220])\n\tby mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4datc2nwgu-1\n\t(version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT);\n\tMon, 06 Apr 2026 09:19:50 +0000 (GMT)", "from pps.filterd (ppma12.dal12v.mail.ibm.com [127.0.0.1])\n\tby ppma12.dal12v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id\n 6364jCgR018517;\n\tMon, 6 Apr 2026 09:19:49 GMT", "from smtprelay04.fra02v.mail.ibm.com ([9.218.2.228])\n\tby ppma12.dal12v.mail.ibm.com (PPS) with ESMTPS id 4dbcysv7at-1\n\t(version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT);\n\tMon, 06 Apr 2026 09:19:49 +0000", "from smtpav02.fra02v.mail.ibm.com (smtpav02.fra02v.mail.ibm.com\n [10.20.54.101])\n\tby smtprelay04.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id\n 6369JkDX28246616\n\t(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK);\n\tMon, 6 Apr 2026 09:19:46 GMT", "from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id 15E3220040;\n\tMon, 6 Apr 2026 09:19:46 +0000 (GMT)", "from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id 7A83A20043;\n\tMon, 6 Apr 2026 09:19:42 +0000 (GMT)", "from li-3f69264c-2ce6-11b2-a85c-c3f414d24014.bl1-in.ibm.com (unknown\n [9.123.3.209])\n\tby smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTP;\n\tMon, 6 Apr 2026 09:19:42 +0000 (GMT)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1775467264;\n\tcv=none;\n b=my2QHOWUtxJVnP62mbqKrs9TBbZZsuOivdSlNw+bSo02lLpHl7RmZAnoxQUBlX3wmZEEmi2gi8jUkB4oAPB8svphSnW4bCSFmhCwUWyGhgJJxSEwyIatgbelBVU4421yrZ0N/wfxv7X9r7VHCX87nfCt9QmuJtPI2aM+EHm8jbJVEWp/mNNDcj5/NJRQMI+HxuAlAFhJPYUUkWVO8w3Fqi73Yc66+kXzi4Rqv8T36pV31L2rxVOPHYRcb8TT48BcxGSwP4FdwGi7HXhceDCKN6JnHBUazWcrvLMNwrkM0UV8Dxp1vsd9dmD1Y/Ekup8dhk8AzOcrKgddmRbQPJlhBg==", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707;\n\tt=1775467264; c=relaxed/relaxed;\n\tbh=Gw+rjcKVM5h6GXjQfCYysJfzzPt4h5VbBFTgu6oDlxM=;\n\th=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References:\n\t MIME-Version;\n b=iNw/gDRVYcBHeAmGsAd7q1ab3KBLAftN/fbRml4HUNPS2MAl9PipRX/o65eHpaFuMBloeXrgH52EUCF9m/pAulnqbZW12Wm8R1dOWAwNIdLdK6+4f/kMC8/tcqPzWdxSbbiY1TEzwPX3ZubOPXtC15cRT/06Z7fXn5bon7CYDqmU4160/uRq36jm/tKMEYGNg+ocxV5V0oFpRoz3ar/xnNeZHtzNrPieuSvj2gT+muJEVHbqJ4ygiFpqJUdXaBjfWAFpQPXje+wNqnrLGaIJTycwgYp+RC4za8OYXjzfmqvZbb6cBmKjdrAH84DiEWLIpCrqJ8AUO7/ljS8MR2XqQg==", "ARC-Authentication-Results": "i=1; lists.ozlabs.org;\n dmarc=pass (p=none dis=none) header.from=linux.ibm.com;\n dkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=AePv7Mh6; dkim-atps=neutral;\n spf=pass (client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com;\n envelope-from=sayalip@linux.ibm.com;\n receiver=lists.ozlabs.org) smtp.mailfrom=linux.ibm.com", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc\n\t:content-transfer-encoding:date:from:in-reply-to:message-id\n\t:mime-version:references:subject:to; s=pp1; bh=Gw+rjcKVM5h6GXjQf\n\tCYysJfzzPt4h5VbBFTgu6oDlxM=; b=AePv7Mh6wpi2Ed/SBNZJotX5rwyc0O+jF\n\tSAXfk9LfzF/c2OGiHrJOejx2ejRWqXITtv5AEm0xyQAO28r+nZmEsr1wSN9NNZwM\n\t8WByYFGgucrBIzac9VrEf78nNVcrR2jr+56RBFck+/9kIR0l+At2YXRCUORGoNEw\n\tw/L3XztUrez4u/9R1Id0BBoE2x5/B78qRsoIgsQ+BnYv030v1fRXZEgk6qIpB5+0\n\tgzvBNbAa/Hcowou+7NEM2uwRiv9L5mqhX+NLxCbQBg6eGX65kPP52vKE00vW6eqS\n\te7D98FLTJj1I43XFxrmlEKiVuiUdC0xEw0NSMHnUTk+eZdTDWvrGQ==", "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 01/15] selftests/mm: restore default nr_hugepages value via\n EXIT trap in charge_reserved_hugetlb.sh", "Date": "Mon, 6 Apr 2026 14:49:20 +0530", "Message-ID": "\n <8beb895ae46c3e817e80cdd5386933cdcf8e233f.1775466329.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-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwNDA2MDA5MCBTYWx0ZWRfXzyKLtulSDSth\n IFqReIpcfgL8hR7NqxmS2WDI6atp0Tuwnpsep9+D7WP5qLtCinM6WdACbnC2x7ZZgR/4Z9mpqbP\n upl/AOBOoEiCZyb33rW9p1as55zdcD6nUk0vuJsWgJ6U78oM0IULBQo1hPPUHawmgr2B0rUOn1h\n QqqvTCNv3d+tRb77WvDuPh/AqVxnA8D6oPBsNd4+p/wFa/mtiWv9UvMVGqqbm+DABCRgT01TdjP\n 9MBEN6AOsPnSRR+IHqw/1aXEGvOJSHKSbwAsK0hAkDVdzJ+4mvWIWk7nre7dHhoGRR/hL083x0n\n 2s1jdLxeEHgRbQZ1LUn6zzYheeBIBY/tBnAPmp8DanxWJavbaDkq2klA/IFelFNhhqSPEXezsxS\n s1xpsAKk0SBvswls3ZZTPIvXRUxqUw0ws+JjRw5SCxH0xbo940n0DYnAaW7pCy9MLvhwAGhpbK5\n K3zpVns/DplhG1DRvgw==", "X-Proofpoint-GUID": "nK63GTggKdNRTYW7Z81LZfRvqmynf4OA", "X-Proofpoint-ORIG-GUID": "J-QzRBArbcHki7t0X32IBjJIHzxx8zwY", "X-Authority-Analysis": "v=2.4 cv=HJvO14tv c=1 sm=1 tr=0 ts=69d37ab7 cx=c_pps\n a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17\n a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22\n a=U7nrCbtTmkRpXpFmAIza:22 a=VnNF1IyMAAAA:8 a=C3DWCGp_6AllTJ2cH5YA:9", "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 impostorscore=0 suspectscore=0 clxscore=1015 lowpriorityscore=0 adultscore=0\n malwarescore=0 spamscore=0 phishscore=0 priorityscore=1501 bulkscore=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": "cleanup() resets nr_hugepages to 0 on every invocation, while the test\nreconfigures it again in the next iteration. This leads to repeated\nallocation and freeing of large numbers of hugepages, especially when\nthe original value is high.\n\nAdditionally, with set -e, failures in earlier cleanup steps (e.g.,\nrmdir or umount returning EBUSY while background activity is still\nongoing) can cause the script to exit before restoring the original\nvalue, leaving the system in a modified state.\n\nUse an EXIT trap to restore the original nr_hugepages once at\nscript termination. This avoids unnecessary allocation churn and\nensures the original value is reliably restored on all exit paths.\n\nFixes: 7d695b1c3695b (\"selftests/mm: save and restore nr_hugepages value\")\nSigned-off-by: Sayali Patil <sayalip@linux.ibm.com>\n---\n tools/testing/selftests/mm/charge_reserved_hugetlb.sh | 3 +--\n 1 file changed, 1 insertion(+), 2 deletions(-)", "diff": "diff --git a/tools/testing/selftests/mm/charge_reserved_hugetlb.sh b/tools/testing/selftests/mm/charge_reserved_hugetlb.sh\nindex 447769657634..ca33ec83ebf2 100755\n--- a/tools/testing/selftests/mm/charge_reserved_hugetlb.sh\n+++ b/tools/testing/selftests/mm/charge_reserved_hugetlb.sh\n@@ -12,6 +12,7 @@ if [[ $(id -u) -ne 0 ]]; then\n fi\n \n nr_hugepgs=$(cat /proc/sys/vm/nr_hugepages)\n+trap 'echo \"$nr_hugepgs\" > /proc/sys/vm/nr_hugepages' EXIT\n \n fault_limit_file=limit_in_bytes\n reservation_limit_file=rsvd.limit_in_bytes\n@@ -65,7 +66,6 @@ function cleanup() {\n if [[ -e $cgroup_path/hugetlb_cgroup_test2 ]]; then\n rmdir $cgroup_path/hugetlb_cgroup_test2\n fi\n- echo 0 >/proc/sys/vm/nr_hugepages\n echo CLEANUP DONE\n }\n \n@@ -594,4 +594,3 @@ if [[ $do_umount ]]; then\n rmdir $cgroup_path\n fi\n \n-echo \"$nr_hugepgs\" > /proc/sys/vm/nr_hugepages\n", "prefixes": [ "v4", "01/15" ] }