83 lines
1.7 KiB
C
83 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) International Business Machines Corp., 2004
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* Copyright (c) Linux Test Project, 2004-2017
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*
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* DESCRIPTION
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* hugeshmget01 - test that shmget() correctly creates a large
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* shared memory segment
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*
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* HISTORY
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* 03/2001 - Written by Wayne Boyer
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* 04/2004 - Updated by Robbie Williamson
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*/
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#include <limits.h>
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#include "hugetlb.h"
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static size_t shm_size;
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static int shm_id_1 = -1;
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static void test_hugeshmget(void)
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{
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struct shmid_ds buf;
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if (shmctl(shm_id_1, IPC_STAT, &buf) == -1) {
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tst_res(TFAIL | TERRNO, "shmctl(IPC_STAT)");
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return;
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}
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if (buf.shm_segsz != shm_size) {
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tst_res(TFAIL, "seqment size is not correct");
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return;
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}
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if (buf.shm_cpid != getpid()) {
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tst_res(TFAIL, "creator pid is not correct");
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return;
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}
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if ((buf.shm_perm.mode & MODE_MASK) != ((SHM_RW) & MODE_MASK)) {
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tst_res(TFAIL, "segment mode is not correct");
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return;
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}
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tst_res(TPASS, "size, pid & mode are correct");
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}
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static void setup(void)
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{
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long hpage_size;
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if (tst_hugepages == 0)
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tst_brk(TCONF, "No enough hugepages for testing.");
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hpage_size = SAFE_READ_MEMINFO("Hugepagesize:") * 1024;
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shm_size = hpage_size * tst_hugepages / 2;
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update_shm_size(&shm_size);
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shmkey = getipckey();
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shm_id_1 = shmget(shmkey, shm_size,
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SHM_HUGETLB | IPC_CREAT | IPC_EXCL | SHM_RW);
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if (shm_id_1 == -1)
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tst_brk(TBROK | TERRNO, "shmget");
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}
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static void cleanup(void)
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{
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rm_shm(shm_id_1);
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}
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static struct tst_test test = {
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.needs_root = 1,
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.options = (struct tst_option[]) {
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{"s:", &nr_opt, "-s num Set the number of the been allocated hugepages"},
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{}
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},
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.setup = setup,
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.cleanup = cleanup,
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.test_all = test_hugeshmget,
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.request_hugepages = 128,
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};
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