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Sun, 16 Oct 2022 12:59:19 +0000 (GMT) Received: from tarunpc.ibmuc.com (unknown [9.43.63.52]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Sun, 16 Oct 2022 12:59:18 +0000 (GMT) From: Tarun Sahu To: ltp@lists.linux.it Date: Sun, 16 Oct 2022 18:27:21 +0530 Message-Id: <20221016125731.249078-20-tsahu@linux.ibm.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20221016125731.249078-1-tsahu@linux.ibm.com> References: <20221016125731.249078-1-tsahu@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: Mei_yi9zAU8WSVB5HxVvI4mtWov7fOQ1 X-Proofpoint-GUID: Mei_yi9zAU8WSVB5HxVvI4mtWov7fOQ1 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-10-16_09,2022-10-14_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 suspectscore=0 bulkscore=0 priorityscore=1501 adultscore=0 malwarescore=0 clxscore=1015 phishscore=0 lowpriorityscore=0 mlxlogscore=999 spamscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2209130000 definitions=main-2210160077 X-Virus-Scanned: clamav-milter 0.102.4 at in-3.smtp.seeweb.it X-Virus-Status: Clean Subject: [LTP] [PATCH 19/29] Hugetlb: Migrating libhugetlbfs mmap-gettest 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: , Cc: aneesh.kumar@linux.ibm.com, sbhat@linux.ibm.com, vaibhav@linux.ibm.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" Migrating the libhugetlbfs/testcases/mmap-gettest.c test Test Description: This baseline test validates that a mapping of a certain size can be created, correctly. Once created, all the pages are filled with a pattern and rechecked to test for corruption. The mapping is then released. This process is repeated for a specified number of iterations. Signed-off-by: Tarun Sahu --- runtest/hugetlb | 1 + testcases/kernel/mem/.gitignore | 1 + .../kernel/mem/hugetlb/hugemmap/hugemmap22.c | 170 ++++++++++++++++++ 3 files changed, 172 insertions(+) create mode 100644 testcases/kernel/mem/hugetlb/hugemmap/hugemmap22.c diff --git a/runtest/hugetlb b/runtest/hugetlb index 449fad56a..5d06c8679 100644 --- a/runtest/hugetlb +++ b/runtest/hugetlb @@ -23,6 +23,7 @@ hugemmap18 hugemmap18 hugemmap19 hugemmap19 hugemmap20 hugemmap20 hugemmap21 hugemmap21 -T 2 -s 5 +hugemmap22 hugemmap22 -T 2 -s 5 hugemmap05_1 hugemmap05 -m hugemmap05_2 hugemmap05 -s hugemmap05_3 hugemmap05 -s -m diff --git a/testcases/kernel/mem/.gitignore b/testcases/kernel/mem/.gitignore index 74edfa392..0fd01dbce 100644 --- a/testcases/kernel/mem/.gitignore +++ b/testcases/kernel/mem/.gitignore @@ -22,6 +22,7 @@ /hugetlb/hugemmap/hugemmap19 /hugetlb/hugemmap/hugemmap20 /hugetlb/hugemmap/hugemmap21 +/hugetlb/hugemmap/hugemmap22 /hugetlb/hugeshmat/hugeshmat01 /hugetlb/hugeshmat/hugeshmat02 /hugetlb/hugeshmat/hugeshmat03 diff --git a/testcases/kernel/mem/hugetlb/hugemmap/hugemmap22.c b/testcases/kernel/mem/hugetlb/hugemmap/hugemmap22.c new file mode 100644 index 000000000..5bc7b9389 --- /dev/null +++ b/testcases/kernel/mem/hugetlb/hugemmap/hugemmap22.c @@ -0,0 +1,170 @@ +// SPDX-License-Identifier: LGPL-2.1-or-later +/* + * Copyright (C) 2005-2006 David Gibson & Adam Litke, IBM Corporation. + * + * Test Name: mmap gettest + * + * Test Description: This baseline test validates that a mapping of a + * certain size can be created, correctly. Once created, all the pages are + * filled with a pattern and rechecked to test for corruption. The mapping is + * then released. This process is repeated for a specified number of + * iterations. + * + * HISTORY + * Written by David Gibson & Adam Litke + * Migrated from libhugetlbfs by Tarun Sahu + * + */ + +#define _GNU_SOURCE +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "hugetlb.h" + +#define BUF_SZ 256 + +/* Setup Configuration */ +static unsigned long nr_hugepages; /* Number of huge pages to allocate */ +static char *iterations_opt; +static int iter; +static char *verbose; +static char hfile[MAXPATHLEN]; +static unsigned long hpage_size; +static int fha = -1; + +static int do_one(size_t size) +{ + char *ma; + size_t i, j; + char pattern = 'A'; + + fha = SAFE_OPEN(hfile, O_RDWR | O_CREAT, 0600); + SAFE_UNLINK(hfile); + + /* Map the files with MAP_PRIVATE */ + ma = SAFE_MMAP(NULL, size, (PROT_READ|PROT_WRITE), MAP_SHARED, fha, 0); + + /* Make sure the page is zeroed */ + for (i = 0; i < nr_hugepages; i++) { + if (verbose) + tst_res(TINFO, "Verifying %p\n", (ma+(i*hpage_size))); + for (j = 0; j < hpage_size; j++) { + if (*(ma+(i*hpage_size)+j) != 0) { + tst_res(TFAIL, "Verifying the mmap area failed. " + "Got %c, expected 0", + *(ma+(i*hpage_size)+j)); + goto fail; + } + } + } + /* Fill each file with a pattern */ + for (i = 0; i < nr_hugepages; i++) { + pattern = 65+(i%26); + if (verbose) + tst_res(TINFO, "Touching %p with %c\n", ma+(i*hpage_size), pattern); + memset(ma+(i*hpage_size), pattern, hpage_size); + } + + /* Verify the pattern */ + for (i = 0; i < nr_hugepages; i++) { + pattern = 65+(i%26); + if (verbose) + tst_res(TINFO, "Verifying %p\n", (ma+(i*hpage_size))); + for (j = 0; j < hpage_size; j++) { + if (*(ma+(i*hpage_size)+j) != pattern) { + tst_res(TFAIL, "Verifying the mmap area failed. " + "Got %c, expected %c", + *(ma+(i*hpage_size)+j), pattern); + goto fail; + } + } + } + + /* Munmap the area */ + SAFE_MUNMAP(ma, size); + + /* Close and delete the file */ + SAFE_CLOSE(fha); + return 0; +fail: + tst_brk(TBROK, "Once failed, No point in continuing the test"); + return 0; +} + +static void run_test(void) +{ + size_t size; + int i; + + size = nr_hugepages * hpage_size; + + for (i = 0; i < iter; i++) { + if (verbose) + tst_res(TINFO, "Iteration %d\n", i); + do_one(size); + } + + tst_res(TPASS, "Successful"); +} + +static void setup(void) +{ + int nr_hpages, ret; + + if (tst_hugepages == 0) + tst_brk(TCONF, "Not enough hugepages for testing."); + + if (!Hopt) + Hopt = tst_get_tmpdir(); + SAFE_MOUNT("none", Hopt, "hugetlbfs", 0, NULL); + + snprintf(hfile, sizeof(hfile), "%s/ltp_mmapfile%d", Hopt, getpid()); + + hpage_size = SAFE_READ_MEMINFO("Hugepagesize:")*1024; + + if (!(iterations_opt) || !(nr_opt)) + tst_brk(TCONF, "Usage: -T <# iterations> -s <# pages>\n"); + + ret = tst_parse_int(iterations_opt, &iter, 1, INT_MAX); + if (ret || iter <= 0) + tst_brk(TCONF, "Invalid iteration argument"); + ret = tst_parse_int(nr_opt, &nr_hpages, 1, INT_MAX); + if (ret || nr_hpages <= 0) + tst_brk(TCONF, "Invalid pages argument"); + nr_hugepages = nr_hpages; +} + +static void cleanup(void) +{ + if (fha >= 0) + SAFE_CLOSE(fha); + umount2(Hopt, MNT_DETACH); +} + +static struct tst_test test = { + .needs_root = 1, + .needs_tmpdir = 1, + .options = (struct tst_option[]) { + {"v", &verbose, "Turns on verbose mode"}, + {"T:", &iterations_opt, "Number of Iterations"}, + {"H:", &Hopt, "Location of hugetlbfs, i.e. -H /var/hugetlbfs"}, + {"s:", &nr_opt, "Set the number of the been allocated hugepages"}, + {} + }, + .setup = setup, + .cleanup = cleanup, + .test_all = run_test, + .hugepages = {2, TST_REQUEST}, +}; -- 2.31.1 -- Mailing list info: https://lists.linux.it/listinfo/ltp