[LTP] [PATCH v3 14/15] mem/swapping: convert to new API
Li Wang
liwang@redhat.com
Tue Jul 18 10:23:11 CEST 2017
Signed-off-by: Li Wang <liwang@redhat.com>
---
testcases/kernel/mem/swapping/swapping01.c | 105 ++++++++++-------------------
1 file changed, 37 insertions(+), 68 deletions(-)
diff --git a/testcases/kernel/mem/swapping/swapping01.c b/testcases/kernel/mem/swapping/swapping01.c
index 171edb3..8c8d628 100644
--- a/testcases/kernel/mem/swapping/swapping01.c
+++ b/testcases/kernel/mem/swapping/swapping01.c
@@ -1,24 +1,15 @@
/*
- * Copyright (C) 2012 Red Hat, Inc.
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * Copyright (C) 2012-2017 Red Hat, Inc.
*
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
*
- * Further, this software is distributed without any warranty that it
- * is free of the rightful claim of any third person regarding
- * infringement or the like. Any license provided herein, whether
- * implied or otherwise, applies only to this software file. Patent
- * licenses, if any, provided herein do not apply to combinations of
- * this program with other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU General Public License for more details.
*/
/*
* swapping01 - first time swap use results in heavy swapping
@@ -53,12 +44,8 @@
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
-#include "test.h"
#include "mem.h"
-char *TCID = "swapping01";
-int TST_TOTAL = 1;
-
/* allow swapping 1 * phy_mem in maximum */
#define COE_DELTA 1
/* will try to alloc 1.3 * phy_mem */
@@ -74,54 +61,42 @@ static long mem_over;
static long mem_over_max;
static pid_t pid;
-int main(int argc, char *argv[])
+static void test_swapping(void)
{
- int lc;
-
- tst_parse_opts(argc, argv, NULL, NULL);
-
#if __WORDSIZE == 32
- tst_brkm(TCONF, NULL, "test is not designed for 32-bit system.");
+ tst_brk(TCONF, "test is not designed for 32-bit system.");
#endif
- setup();
-
- for (lc = 0; TEST_LOOPING(lc); lc++) {
- tst_count = 0;
-
- init_meminfo();
+ init_meminfo();
- switch (pid = fork()) {
+ switch (pid = fork()) {
case -1:
- tst_brkm(TBROK | TERRNO, cleanup, "fork");
+ tst_brk(TBROK | TERRNO, "fork");
case 0:
do_alloc();
exit(0);
default:
check_swapping();
- }
}
- cleanup();
- tst_exit();
}
static void init_meminfo(void)
{
- swap_free_init = read_meminfo("SwapFree:");
- if (FILE_LINES_SCANF(cleanup, "/proc/meminfo", "MemAvailable: %ld",
+ swap_free_init = SAFE_READ_MEMINFO("SwapFree:");
+ if (FILE_LINES_SCANF("/proc/meminfo", "MemAvailable: %ld",
&mem_available_init)) {
- mem_available_init = read_meminfo("MemFree:")
- + read_meminfo("Cached:");
+ mem_available_init = SAFE_READ_MEMINFO("MemFree:")
+ + SAFE_READ_MEMINFO("Cached:");
}
mem_over = mem_available_init * COE_SLIGHT_OVER;
mem_over_max = mem_available_init * COE_DELTA;
/* at least 10MB available physical memory needed */
if (mem_available_init < 10240)
- tst_brkm(TCONF, cleanup, "Not enough available mem to test.");
+ tst_brk(TCONF, "Not enough available mem to test.");
if (swap_free_init < mem_over_max)
- tst_brkm(TCONF, cleanup, "Not enough swap space to test.");
+ tst_brk(TCONF, "Not enough swap space to test.");
}
static void do_alloc(void)
@@ -129,17 +104,17 @@ static void do_alloc(void)
long mem_count;
void *s;
- tst_resm(TINFO, "available physical memory: %ld MB",
+ tst_res(TINFO, "available physical memory: %ld MB",
mem_available_init / 1024);
mem_count = mem_available_init + mem_over;
- tst_resm(TINFO, "try to allocate: %ld MB", mem_count / 1024);
+ tst_res(TINFO, "try to allocate: %ld MB", mem_count / 1024);
s = malloc(mem_count * 1024);
if (s == NULL)
- tst_brkm(TBROK | TERRNO, cleanup, "malloc");
+ tst_brk(TBROK | TERRNO, "malloc");
memset(s, 1, mem_count * 1024);
- tst_resm(TINFO, "memory allocated: %ld MB", mem_count / 1024);
+ tst_res(TINFO, "memory allocated: %ld MB", mem_count / 1024);
if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK | TERRNO, tst_exit, "kill");
+ tst_brk(TBROK | TERRNO, "kill");
free(s);
}
@@ -150,44 +125,38 @@ static void check_swapping(void)
/* wait child stop */
if (waitpid(pid, &status, WUNTRACED) == -1)
- tst_brkm(TBROK | TERRNO, cleanup, "waitpid");
+ tst_brk(TBROK | TERRNO, "waitpid");
if (!WIFSTOPPED(status))
- tst_brkm(TBROK, cleanup, "child was not stopped.");
+ tst_brk(TBROK, "child was not stopped.");
/* Still occupying memory, loop for a while */
i = 0;
while (i < 10) {
- swap_free_now = read_meminfo("SwapFree:");
+ swap_free_now = SAFE_READ_MEMINFO("SwapFree:");
sleep(1);
- if (abs(swap_free_now - read_meminfo("SwapFree:")) < 512)
+ if (abs(swap_free_now - SAFE_READ_MEMINFO("SwapFree:")) < 512)
break;
i++;
}
- swap_free_now = read_meminfo("SwapFree:");
+ swap_free_now = SAFE_READ_MEMINFO("SwapFree:");
swapped = swap_free_init - swap_free_now;
if (swapped > mem_over_max) {
kill(pid, SIGCONT);
- tst_brkm(TFAIL, cleanup, "heavy swapping detected: "
+ tst_brk(TFAIL, "heavy swapping detected: "
"%ld MB swapped.", swapped / 1024);
}
- tst_resm(TPASS, "no heavy swapping detected, %ld MB swapped.",
+ tst_res(TPASS, "no heavy swapping detected, %ld MB swapped.",
swapped / 1024);
kill(pid, SIGCONT);
/* wait child exit */
if (waitpid(pid, &status, 0) == -1)
- tst_brkm(TBROK | TERRNO, cleanup, "waitpid");
+ tst_brk(TBROK | TERRNO, "waitpid");
}
-void setup(void)
-{
- tst_sig(FORK, DEF_HANDLER, cleanup);
-
- TEST_PAUSE;
-}
-
-void cleanup(void)
-{
-}
+static struct tst_test test = {
+ .needs_root = 1,
+ .test_all = test_swapping,
+};
--
2.9.3
More information about the ltp
mailing list