From: Tarun Sahu <tsahu@linux.ibm.com>
To: ltp@lists.linux.it
Cc: geetika@linux.ibm.com, sbhat@linux.ibm.com,
aneesh.kumar@linux.ibm.com, vaibhav@linux.ibm.com,
rpalethorpe@suse.com
Subject: [LTP] [PATCH 08/13] Hugetlb: Migrating libhugetlbfs noresv-regarded-as-resv
Date: Sun, 25 Dec 2022 21:12:08 +0530 [thread overview]
Message-ID: <20221225154213.84183-9-tsahu@linux.ibm.com> (raw)
In-Reply-To: <20221225154213.84183-1-tsahu@linux.ibm.com>
Migrating the libhugetlbfs/testcases/noresv-regarded-as-resv.c test
Test Description: Test to correct handling for reserve count. If no
reserved mapping is created to reserved file region, it should be
considered as reserve mapping. Otherwise, reserve count will be
overflowed.
Signed-off-by: Tarun Sahu <tsahu@linux.ibm.com>
---
runtest/hugetlb | 1 +
testcases/kernel/mem/.gitignore | 1 +
.../kernel/mem/hugetlb/hugemmap/hugemmap28.c | 74 +++++++++++++++++++
3 files changed, 76 insertions(+)
create mode 100644 testcases/kernel/mem/hugetlb/hugemmap/hugemmap28.c
diff --git a/runtest/hugetlb b/runtest/hugetlb
index d108542d2..95afe009e 100644
--- a/runtest/hugetlb
+++ b/runtest/hugetlb
@@ -28,6 +28,7 @@ hugemmap23 hugemmap23
hugemmap25 hugemmap25
hugemmap26 hugemmap26
hugemmap27 hugemmap27
+hugemmap28 hugemmap28
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 9862414c6..2f8ed0df0 100644
--- a/testcases/kernel/mem/.gitignore
+++ b/testcases/kernel/mem/.gitignore
@@ -27,6 +27,7 @@
/hugetlb/hugemmap/hugemmap25
/hugetlb/hugemmap/hugemmap26
/hugetlb/hugemmap/hugemmap27
+/hugetlb/hugemmap/hugemmap28
/hugetlb/hugeshmat/hugeshmat01
/hugetlb/hugeshmat/hugeshmat02
/hugetlb/hugeshmat/hugeshmat03
diff --git a/testcases/kernel/mem/hugetlb/hugemmap/hugemmap28.c b/testcases/kernel/mem/hugetlb/hugemmap/hugemmap28.c
new file mode 100644
index 000000000..1c4f49038
--- /dev/null
+++ b/testcases/kernel/mem/hugetlb/hugemmap/hugemmap28.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
+/*
+ * Copyright (C) 2013 LG Electronics.
+ * Author: Joonsoo Kim
+ */
+
+/*\
+ * [Description]
+ *
+ * Test to correct handling for reserve count. If no reserved mapping is
+ * created to reserved file region, it should be considered as reserve
+ * mapping. Otherwise, reserve count will be overflowed.
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <sys/mount.h>
+#include <limits.h>
+#include <sys/param.h>
+#include <setjmp.h>
+#include <sys/types.h>
+
+#include "hugetlb.h"
+
+#define MNTPOINT "hugetlbfs/"
+static long hpage_size;
+static int fd = -1;
+
+static void run_test(void)
+{
+ unsigned long initial_resv, end_resv;
+ int fd;
+ char *p, *q;
+
+ initial_resv = SAFE_READ_MEMINFO(MEMINFO_HPAGE_RSVD);
+
+ fd = tst_creat_unlinked(MNTPOINT, 0);
+ p = SAFE_MMAP(NULL, hpage_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+
+ q = SAFE_MMAP(NULL, hpage_size,
+ PROT_READ | PROT_WRITE, MAP_SHARED | MAP_NORESERVE, fd, 0);
+
+ *q = 's';
+
+ SAFE_MUNMAP(p, hpage_size);
+ SAFE_MUNMAP(q, hpage_size);
+ SAFE_CLOSE(fd);
+
+ end_resv = SAFE_READ_MEMINFO(MEMINFO_HPAGE_RSVD);
+
+ TST_EXP_EQ_LU(initial_resv, end_resv);
+}
+
+static void setup(void)
+{
+ hpage_size = SAFE_READ_MEMINFO(MEMINFO_HPAGE_SIZE)*1024;
+}
+
+static void cleanup(void)
+{
+ if (fd >= 0)
+ SAFE_CLOSE(fd);
+}
+
+static struct tst_test test = {
+ .needs_root = 1,
+ .mntpoint = MNTPOINT,
+ .needs_hugetlbfs = 1,
+ .needs_tmpdir = 1,
+ .setup = setup,
+ .cleanup = cleanup,
+ .test_all = run_test,
+ .hugepages = {2, TST_NEEDS},
+};
--
2.31.1
--
Mailing list info: https://lists.linux.it/listinfo/ltp
next prev parent reply other threads:[~2022-12-25 15:44 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-25 15:42 [LTP] [PATCH 0/13][PART 4] Hugetlb:Migrating the libhugetlbfs tests Tarun Sahu
2022-12-25 15:42 ` [LTP] [PATCH 01/13] Hugetlb: Migrating libhugetlbfs mlock Tarun Sahu
2022-12-26 4:48 ` Li Wang
2022-12-26 9:39 ` Tarun Sahu
2022-12-26 9:48 ` Li Wang
2022-12-25 15:42 ` [LTP] [PATCH 02/13] Hugetlb: Migrating libhugetlbfs mmap-cow Tarun Sahu
2022-12-26 6:57 ` Li Wang
2022-12-26 7:35 ` Tarun Sahu
2022-12-25 15:42 ` [LTP] [PATCH 03/13] Hugetlb: Migrating libhugetlbfs mmap-gettest Tarun Sahu
2022-12-26 7:33 ` Li Wang
2022-12-26 9:41 ` Tarun Sahu
2022-12-25 15:42 ` [LTP] [PATCH 04/13] Hugetlb: Migrating libhugetlbfs mprotect Tarun Sahu
2022-12-27 5:48 ` Li Wang
2022-12-27 16:00 ` Tarun Sahu
2022-12-25 15:42 ` [LTP] [PATCH 05/13] Hugetlb: Migrating libhugetlbfs mremap-fixed-huge-near-normal Tarun Sahu
2022-12-25 15:42 ` [LTP] [PATCH 06/13] Hugetlb: Migrating libhugetlbfs mremap-fixed-normal-near-huge Tarun Sahu
2022-12-27 6:31 ` Li Wang
2022-12-27 18:21 ` Tarun Sahu
2022-12-29 19:06 ` Tarun Sahu
2022-12-30 3:49 ` Li Wang
2022-12-31 5:08 ` Tarun Sahu
2023-01-03 3:06 ` Li Wang
2022-12-25 15:42 ` [LTP] [PATCH 07/13] Hugetlb: Migrating libhugetlbfs noresv-reserve-resv-page Tarun Sahu
2022-12-25 15:42 ` Tarun Sahu [this message]
2022-12-27 6:47 ` [LTP] [PATCH 08/13] Hugetlb: Migrating libhugetlbfs noresv-regarded-as-resv Li Wang
2022-12-25 15:42 ` [LTP] [PATCH 09/13] Hugetlb: Migrating libhugetlbfs private Tarun Sahu
2022-12-27 6:56 ` Li Wang
2022-12-25 15:42 ` [LTP] [PATCH 10/13] Hugetlb: Migrating libhugetlbfs readahead_reserve Tarun Sahu
2022-12-27 7:05 ` Li Wang
2022-12-25 15:42 ` [LTP] [PATCH 11/13] Hugetlb: Migrating libhugetlbfs shared Tarun Sahu
2022-12-27 7:08 ` Li Wang
2022-12-25 15:42 ` [LTP] [PATCH 12/13] Hugetlb: Migrating libhugetlbfs shm-fork Tarun Sahu
2022-12-28 3:15 ` Li Wang
2023-01-03 18:23 ` Petr Vorel
2023-01-04 17:59 ` Tarun Sahu
2022-12-25 15:42 ` [LTP] [PATCH 13/13] Hugetlb: Migrating libhugetlbfs mremap-expand-slice-collision Tarun Sahu
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