From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from picard.linux.it (picard.linux.it [213.254.12.146]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 88759CA0ECA for ; Tue, 12 Sep 2023 11:05:00 +0000 (UTC) Received: from picard.linux.it (localhost [IPv6:::1]) by picard.linux.it (Postfix) with ESMTP id 21EEA3CE817 for ; Tue, 12 Sep 2023 13:04:58 +0200 (CEST) Received: from in-7.smtp.seeweb.it (in-7.smtp.seeweb.it [217.194.8.7]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384)) (No client certificate requested) by picard.linux.it (Postfix) with ESMTPS id AE3513CB2F1 for ; Tue, 12 Sep 2023 13:04:47 +0200 (CEST) Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by in-7.smtp.seeweb.it (Postfix) with ESMTPS id 1DAEF2005EC for ; Tue, 12 Sep 2023 13:04:45 +0200 (CEST) Received: from pps.filterd (m0356516.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 38CAjL5f020750 for ; Tue, 12 Sep 2023 11:04:44 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding; s=pp1; bh=p0qC0IH26g032AXjS7K3G52t5KOWW7StzlBA05mroK4=; b=JtuauxBcs+ZGTjDh4QFdS+Uz04Rz/T2Wt79DurOkalpIxATHDGBjUgECqLgBWQNnJzp5 KIUO/nff6iVGD4qiSh2UILAR9YPS59brGbe1VqgO6Lp4uetTh4lyvhA2OcFlEIrWCNDF WQUbq5u1ALIolT5fFJ+iXayPLAB1nHkiu0oU751NbOgQqBVYZbuG59P38n8/2xZoGrZh CLRQXQjKthLbd37agxqL1QJfjHoqT5dcMRITzTLOEUsDN6nO3WY37ExvMKyIKXmj0yDw 0jrZwLT1mGgMWArWcFhiqP5sN43xKJ8to3MT5vwkAMuZmcmQOwIEisZYfwLKBsQQPpkA ow== Received: from ppma12.dal12v.mail.ibm.com (dc.9e.1632.ip4.static.sl-reverse.com [50.22.158.220]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3t2p5w91m1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 12 Sep 2023 11:04:44 +0000 Received: from pps.filterd (ppma12.dal12v.mail.ibm.com [127.0.0.1]) by ppma12.dal12v.mail.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 38C9forZ024034 for ; Tue, 12 Sep 2023 11:04:43 GMT Received: from smtprelay07.fra02v.mail.ibm.com ([9.218.2.229]) by ppma12.dal12v.mail.ibm.com (PPS) with ESMTPS id 3t131t2ws8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 12 Sep 2023 11:04:43 +0000 Received: from smtpav05.fra02v.mail.ibm.com (smtpav05.fra02v.mail.ibm.com [10.20.54.104]) by smtprelay07.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 38CB4est61800772 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 12 Sep 2023 11:04:40 GMT Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6F15D20043; Tue, 12 Sep 2023 11:04:40 +0000 (GMT) Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8A80E20040; Tue, 12 Sep 2023 11:04:39 +0000 (GMT) Received: from ltcever7x0-lp4.aus.stglabs.ibm.com (unknown [9.3.101.63]) by smtpav05.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 12 Sep 2023 11:04:39 +0000 (GMT) From: Sachin P Bappalige To: ltp@lists.linux.it Date: Tue, 12 Sep 2023 06:04:11 -0500 Message-Id: <20230912110412.425309-1-sachinpb@linux.vnet.ibm.com> X-Mailer: git-send-email 2.39.3 MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: zjMo62kAj7sflfBs7XRcSHCGbMIZItPt X-Proofpoint-ORIG-GUID: zjMo62kAj7sflfBs7XRcSHCGbMIZItPt X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.601,FMLib:17.11.176.26 definitions=2023-09-12_08,2023-09-05_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 phishscore=0 mlxscore=0 clxscore=1015 malwarescore=0 spamscore=0 adultscore=0 priorityscore=1501 mlxlogscore=999 bulkscore=0 suspectscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2308100000 definitions=main-2309120090 X-Virus-Scanned: clamav-milter 1.0.1 at in-7.smtp.seeweb.it X-Virus-Status: Clean Subject: [LTP] [PATCH v2] Migrating the libhugetlbfs/testcases/shm-gettest.c test X-BeenThere: ltp@lists.linux.it X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Test Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" Test Description: This testcase creates shared memory segments backed by hugepages, writes specific patterns to each segment, verifies pattern and detaches a shared memory segments in a loop. This looping test was added to verify the functionality of large page backed shared memory segments. A segment is created, written, verified, and detached a specified number of times. Signed-off-by: Sachin P Bappalige --- v2: -Fixed coding style errors as per 'make check' -Reporting TPASS moved inside do_shmtest() function -Moved testcase file from folder hugemmap to hugeshmget -Renamed testcase 'hugepage35.c' to hugeshmget06.c -Updated 'kernel/mem/.gitignore' -Updated 'runtest/hugetlb' for number of iterations with -i 10 --- runtest/hugetlb | 1 + testcases/kernel/mem/.gitignore | 1 + .../mem/hugetlb/hugeshmget/hugeshmget06.c | 93 +++++++++++++++++++ 3 files changed, 95 insertions(+) create mode 100644 testcases/kernel/mem/hugetlb/hugeshmget/hugeshmget06.c diff --git a/runtest/hugetlb b/runtest/hugetlb index 299c07ac9..f294e9aaa 100644 --- a/runtest/hugetlb +++ b/runtest/hugetlb @@ -55,3 +55,4 @@ hugeshmget01 hugeshmget01 -i 10 hugeshmget02 hugeshmget02 -i 10 hugeshmget03 hugeshmget03 -i 10 hugeshmget05 hugeshmget05 -i 10 +hugeshmget06 hugeshmget06 -i 10 diff --git a/testcases/kernel/mem/.gitignore b/testcases/kernel/mem/.gitignore index 7258489ed..e74fd1246 100644 --- a/testcases/kernel/mem/.gitignore +++ b/testcases/kernel/mem/.gitignore @@ -47,6 +47,7 @@ /hugetlb/hugeshmget/hugeshmget02 /hugetlb/hugeshmget/hugeshmget03 /hugetlb/hugeshmget/hugeshmget05 +/hugetlb/hugeshmget/hugeshmget06 /ksm/ksm01 /ksm/ksm02 /ksm/ksm03 diff --git a/testcases/kernel/mem/hugetlb/hugeshmget/hugeshmget06.c b/testcases/kernel/mem/hugetlb/hugeshmget/hugeshmget06.c new file mode 100644 index 000000000..5b0c2ec23 --- /dev/null +++ b/testcases/kernel/mem/hugetlb/hugeshmget/hugeshmget06.c @@ -0,0 +1,93 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2005-2006, IBM Corporation. + * Author: David Gibson & Adam Litke + */ + +/*\ + * [Description] + * + * Test Name: shm-gettest.c + * + * This testcase creates shared memory segments backed by hugepages, + * writes specific patterns to each segment, verifies pattern, + * and detaches a shared memory segments in a loop. + * It ensures that the hugepage backed shared memory functionalities + * works correctly by validating the data written to segment. + */ + +#include "hugetlb.h" +#include "tst_safe_sysv_ipc.h" + +#define MNTPOINT "hugetlbfs/" +#define NR_HUGEPAGES 4 + +static long hpage_size; +static int shmid = -1, key = -1; + +static void do_shmtest(size_t size) +{ + size_t i, j; + char pattern; + char *shmaddr; + + shmid = SAFE_SHMGET(key, size, SHM_HUGETLB|IPC_CREAT|SHM_R|SHM_W); + tst_res(TINFO, "shmid: 0x%x\n", shmid); + + shmaddr = SAFE_SHMAT(shmid, 0, SHM_RND); + tst_res(TINFO, "shmaddr: %p\n", shmaddr); + + for (i = 0; i < NR_HUGEPAGES; i++) { + pattern = 65 + (i % 26); + tst_res(TINFO, "Touching %p with %c\n", + shmaddr + (i * hpage_size), pattern); + memset(shmaddr + (i * hpage_size), pattern, hpage_size); + } + + for (i = 0; i < NR_HUGEPAGES; i++) { + pattern = 65 + (i % 26); + tst_res(TINFO, "Verifying %p\n", (shmaddr + (i * hpage_size))); + for (j = 0; j < (size_t)hpage_size; j++) + if (*(shmaddr + (i * hpage_size) + j) != pattern) + tst_res(TFAIL, "Verifying the segment failed." + "Got %c, expected %c", + *(shmaddr + (i * hpage_size) + j), + pattern); + } + SAFE_SHMDT((const void *)shmaddr); + tst_res(TPASS, "Successfully tested shared memory segment operations " + "backed by hugepages"); +} + +static void run_test(void) +{ + size_t size; + + size = NR_HUGEPAGES * hpage_size; + + do_shmtest(size); +} + +static void setup(void) +{ + + hpage_size = tst_get_hugepage_size(); + tst_res(TINFO, "hugepage size is %ld", hpage_size); +} + +static void cleanup(void) +{ + if (shmid >= 0) + // Remove the shared memory segment + SAFE_SHMCTL(shmid, IPC_RMID, NULL); +} + +static struct tst_test test = { + .needs_root = 1, + .mntpoint = MNTPOINT, + .needs_hugetlbfs = 1, + .setup = setup, + .cleanup = cleanup, + .test_all = run_test, + .hugepages = {NR_HUGEPAGES, TST_NEEDS}, +}; -- 2.39.3 -- Mailing list info: https://lists.linux.it/listinfo/ltp