Mainly to reduce code duplication. Also, to add an option for ksm01 to
use a different memory allocation unit size to take advantage of
THP. In addition, adjust ksm01 according the latest upstream
development effort,
http://marc.info/?l=linux-mm&m=129473104716901&w=2
http://marc.info/?l=linux-mm&m=129442718808733&w=2
Signed-off-by: CAI Qian <[email protected]>
---
testcases/kernel/mem/ksm/ksm01.c | 448 +------------------------------------
testcases/kernel/mem/oom/oom01.c | 4 +-
testcases/kernel/mem/oom/oom02.c | 4 +-
testcases/kernel/mem/oom/oom03.c | 4 +-
testcases/kernel/mem/oom/oom04.c | 36 +---
5 files changed, 17 insertions(+), 479 deletions(-)
diff --git a/testcases/kernel/mem/ksm/ksm01.c b/testcases/kernel/mem/ksm/ksm01.c
index 09f71d7..26c5aa7 100644
--- a/testcases/kernel/mem/ksm/ksm01.c
+++ b/testcases/kernel/mem/ksm/ksm01.c
@@ -1,5 +1,5 @@
/*
- * functional testing for Kernel Samepage Merging (KSM)
+ * Kernel Samepage Merging (KSM)
*
* Basic tests were to start several programs with same and different
* memory contents and ensure only to merge the ones with the same
@@ -69,9 +69,7 @@
#include <errno.h>
#include "test.h"
#include "usctest.h"
-
-#define _PATH_KSM "/sys/kernel/mm/ksm/"
-#define MB (1024 * 1024)
+#include "../include/mem.h"
char *TCID = "ksm01";
int TST_TOTAL = 1;
@@ -85,455 +83,35 @@ static option_t options[] = {
{ "s:", &opt_size, &opt_sizestr},
{ NULL, NULL, NULL}
};
-static void setup(void);
-static void ksmtest(void);
-static void usage(void);
-static void check(char *path, char *path2, long int value);
-static void verify(char value, int proc, int start, int end, int start2,
- int end2);
-static void group_check(int run, int pages_shared, int pages_sharing,
- int pages_volatile, int pages_unshared,
- int sleep_millisecs, int pages_to_scan);
int main(int argc, char *argv[])
{
int lc;
char *msg;
+ int size = 128, num = 3, unit = 1;
- msg = parse_opts(argc, argv, options, usage);
- if (msg != (char *)NULL)
- tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
+ msg = parse_opts(argc, argv, ksm_options, ksm_usage);
+ if (msg != NULL)
+ tst_brkm(TBROK, tst_exit, "OPTION PARSING ERROR - %s", msg);
setup();
for (lc = 0; TEST_LOOPING(lc); lc++) {
Tst_count = 0;
- ksmtest();
+ check_ksm_options(&size, &num, &unit);
+ create_same_memory(size, num, unit);
}
- tst_exit();
-}
-
-void ksmtest(void)
-{
- char buf[BUFSIZ], buf2[BUFSIZ];
- int i, j, status, k, fd, *child;
- int size = 128, num = 3;
-
- if (opt_size) {
- size = atoi(opt_sizestr);
- if (size < 1)
- tst_brkm(TBROK, NULL,
- "size cannot be less than 1.");
- }
- if (opt_num) {
- num = atoi(opt_numstr);
- if (num < 3)
- tst_brkm(TBROK, NULL,
- "process number cannot be less 3.");
- }
- child = malloc(num);
- if (child == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "malloc");
-
- memory = malloc(num * sizeof(**memory));
- if (memory == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "malloc");
-
- switch (child[0] = fork()) {
- case -1:
- tst_brkm(TBROK|TERRNO, NULL, "fork");
- case 0:
- tst_resm(TINFO, "child 0 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
-
- tst_resm(TINFO, "child 0 continues...");
-
- /* Avoid TransparentHugePage allocation which can't ksm at the
- moment. */
- tst_resm(TINFO, "child 0 allocates %d MB filled with 'c'.",
- size);
- memory[0] = malloc(size * sizeof(*memory));
- if (memory[0] == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "malloc");
- for (j = 0; j < size; j++) {
- memory[0][j] = mmap(NULL, MB, PROT_READ|PROT_WRITE,
- MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
- if (memory[0][j] == MAP_FAILED)
- tst_brkm(TBROK|TERRNO, NULL, "mmap");
- if (madvise(memory[0][j], MB, MADV_MERGEABLE) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "madvise");
- for (i = 0; i < MB; i++)
- memory[0][j][i] = 'c';
- }
- tst_resm(TINFO, "child 0 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
-
- tst_resm(TINFO, "child 0 continues...");
- verify('c', 0, 0, size, 0, MB);
- tst_resm(TINFO, "child 0 changes memory content to 'd'.");
- for (j = 0; j < size; j++) {
- for (i = 0; i < MB; i++)
- memory[0][j][i] = 'd';
- }
- /* Unmerge. */
- tst_resm(TINFO, "child 0 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
-
- tst_resm(TINFO, "child 0 continues...");
- verify('d', 0, 0, size, 0, MB);
- /* Stop. */
- tst_resm(TINFO, "child 0 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child 0 continues...");
- exit(0);
- }
- switch (child[1] = fork()) {
- case -1:
- tst_brkm(TBROK|TERRNO, NULL, "fork");
- case 0:
- tst_resm(TINFO, "child 1 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child 1 continues...");
- tst_resm(TINFO, "child 1 allocates %d MB filled with 'a'.",
- size);
- memory[1] = malloc(size * sizeof(*memory));
- if (memory[1] == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "malloc");
- for (j = 0; j < size; j++) {
- memory[1][j] = mmap(NULL, MB, PROT_READ|PROT_WRITE,
- MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
- if (memory[1][j] == MAP_FAILED)
- tst_brkm(TBROK|TERRNO, NULL, "mmap");
- if (madvise(memory[1][j], MB, MADV_MERGEABLE) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "madvise");
- for (i = 0; i < MB; i++)
- memory[1][j][i] = 'a';
- }
-
- tst_resm(TINFO, "child 1 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child 1 continues...");
- verify('a', 1, 0, size, 0, MB);
- tst_resm(TINFO, "child 1 changes memory content to 'b'.");
- for (j = 0; j < size; j++) {
- for (i = 0; i < MB; i++)
- memory[1][j][i] = 'b';
- }
-
- tst_resm(TINFO, "child 1 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child 1 continues...");
- verify('b', 1, 0, size, 0, MB);
- tst_resm(TINFO, "child 1 changes memory content to 'd'");
- for (j = 0; j < size; j++) {
- for (i = 0; i < MB; i++)
- memory[1][j][i] = 'd';
- }
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
-
- tst_resm(TINFO, "child 1 continues...");
- verify('d', 1, 0, size, 0, MB);
- tst_resm(TINFO, "child 1 changes one page to 'e'.");
- memory[1][size - 1][MB - 1] = 'e';
-
- /* Unmerge. */
- tst_resm(TINFO, "child 1 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child 1 continues...");
- verify('e', 1, size - 1, size, MB - 1, MB);
- verify('d', 1, 0, size - 1, 0, MB - 1);
-
- /* Stop. */
- tst_resm(TINFO, "child 1 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child 1 continues...");
- exit(0);
- }
- for (k = 2; k < num; k++) {
- switch (child[k] = fork()) {
- case -1:
- tst_brkm(TBROK|TERRNO, NULL, "fork");
- case 0:
- tst_resm(TINFO, "child %d stops.", k);
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child %d continues...", k);
- tst_resm(TINFO, "child %d allocates %d "
- "MB filled with 'a'.", k, size);
- memory[k] = malloc(size * sizeof(*memory));
- if (memory[k] == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "malloc");
- for (j = 0; j < size; j++) {
- memory[k][j] = mmap(NULL, MB,
- PROT_READ|PROT_WRITE,
- MAP_ANONYMOUS
- |MAP_PRIVATE, -1, 0);
- if (memory[k][j] == MAP_FAILED)
- tst_brkm(TBROK|TERRNO, NULL,
- "mmap");
- if (madvise(memory[k][j], MB,
- MADV_MERGEABLE) == -1)
- tst_brkm(TBROK|TERRNO, NULL,
- "madvise");
- for (i = 0; i < MB; i++)
- memory[k][j][i] = 'a';
- }
- tst_resm(TINFO, "child %d stops.", k);
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child %d continues...", k);
- tst_resm(TINFO, "child %d changes memory content to "
- "'d'", k);
- for (j = 0; j < size; j++) {
- for (i = 0; i < MB; i++)
- memory[k][j][i] = 'd';
- }
- /* Unmerge. */
- tst_resm(TINFO, "child %d stops.", k);
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child %d continues...", k);
-
- /* Stop. */
- tst_resm(TINFO, "child %d stops.", k);
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child %d continues...", k);
- exit(0);
- }
- }
- tst_resm(TINFO, "KSM merging...");
- snprintf(buf, BUFSIZ, "%s%s", _PATH_KSM, "run");
- fd = open(buf, O_WRONLY);
- if (fd == -1)
- tst_brkm(TBROK|TERRNO, NULL, "open");
- if (write(fd, "1", 1) != 1)
- tst_brkm(TBROK|TERRNO, NULL, "write");
- close(fd);
- snprintf(buf, BUFSIZ, "%s%s", _PATH_KSM, "pages_to_scan");
- snprintf(buf2, BUFSIZ, "%d", size * 256 * num);
- fd = open(buf, O_WRONLY);
- if (fd == -1)
- tst_brkm(TBROK|TERRNO, NULL, "open");
- if (write(fd, buf2, strlen(buf2)) != strlen(buf2))
- tst_brkm(TBROK|TERRNO, NULL, "write");
- close(fd);
-
- snprintf(buf, BUFSIZ, "%s%s", _PATH_KSM, "sleep_millisecs");
- fd = open(buf, O_WRONLY);
- if (fd == -1)
- tst_brkm(TBROK|TERRNO, NULL, "open");
- if (write(fd, "0", 1) != 1)
- tst_brkm(TBROK|TERRNO, NULL, "write");
- close(fd);
-
- tst_resm(TINFO, "wait for all children to stop.");
- for (k = 0; k < num; k++) {
- if (waitpid(child[k], &status, WUNTRACED) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "waitpid");
- if (!WIFSTOPPED(status))
- tst_brkm(TBROK, NULL, "child %d was not stopped.",
- k);
- }
- tst_resm(TINFO, "resume all children.");
- for (k = 0; k < num; k++) {
- if (kill(child[k], SIGCONT) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill child[%d]", k);
- }
- group_check(1, 2, size * num * 256 - 2, 0, 0, 0, size * 256 * num);
-
- tst_resm(TINFO, "wait for child 1 to stop.");
- if (waitpid(child[1], &status, WUNTRACED) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "waitpid");
- if (!WIFSTOPPED(status))
- tst_brkm(TBROK, NULL, "child 1 was not stopped.");
-
- /* Child 1 changes all pages to 'b'. */
- tst_resm(TINFO, "resume child 1.");
- if (kill(child[1], SIGCONT) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- group_check(1, 3, size * num * 256 - 3, 0, 0, 0, size * 256 * num);
-
- tst_resm(TINFO, "wait for child 1 to stop.");
- if (waitpid(child[1], &status, WUNTRACED) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "waitpid");
- if (!WIFSTOPPED(status))
- tst_brkm(TBROK, NULL, "child 1 was not stopped.");
-
- /* All children change pages to 'd'. */
- tst_resm(TINFO, "resume all children.");
- for (k = 0; k < num; k++) {
- if (kill(child[k], SIGCONT) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill child[%d]", k);
- }
- group_check(1, 1, size * num * 256 - 1, 0, 0, 0, size * 256 * num);
-
- tst_resm(TINFO, "wait for all children to stop.");
- for (k = 0; k < num; k++) {
- if (waitpid(child[k], &status, WUNTRACED) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "waitpid");
- if (!WIFSTOPPED(status))
- tst_brkm(TBROK, NULL, "child %d was not stopped.",
- k);
- }
- /* Child 1 changes pages to 'e'. */
- tst_resm(TINFO, "resume child 1.");
- if (kill(child[1], SIGCONT) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- group_check(1, 1, size * num * 256 - 2, 0, 1, 0, size * 256 * num);
-
- tst_resm(TINFO, "wait for child 1 to stop.");
- if (waitpid(child[1], &status, WUNTRACED) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "waitpid");
- if (!WIFSTOPPED(status))
- tst_brkm(TBROK, NULL, "child 1 was not stopped.");
-
- tst_resm(TINFO, "resume all children.");
- for (k = 0; k < num; k++) {
- if (kill(child[k], SIGCONT) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill child[%d]", k);
- }
- tst_resm(TINFO, "KSM unmerging...");
- snprintf(buf, BUFSIZ, "%s%s", _PATH_KSM, "run");
- fd = open(buf, O_WRONLY);
- if (fd == -1)
- tst_brkm(TBROK|TERRNO, NULL, "open");
- if (write(fd, "2", 1) != 1)
- tst_brkm(TBROK|TERRNO, NULL, "write");
- group_check(2, 0, 0, 0, 0, 0, size * 256 * num);
-
- tst_resm(TINFO, "wait for all children to stop.");
- for (k = 0; k < num; k++) {
- if (waitpid(child[k], &status, WUNTRACED) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "waitpid");
- if (!WIFSTOPPED(status))
- tst_brkm(TBROK, NULL, "child %d was not stopped.",
- k);
- }
- tst_resm(TINFO, "resume all children.");
- for (k = 0; k < num; k++) {
- if (kill(child[k], SIGCONT) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill child[%d]", k);
- }
- tst_resm(TINFO, "stop KSM.");
- if (lseek(fd, 0, SEEK_SET) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "lseek");
- if (write(fd, "0", 1) != 1)
- tst_brkm(TBROK|TERRNO, NULL, "write");
- close(fd);
- group_check(0, 0, 0, 0, 0, 0, size * 256 * num);
- while (waitpid(-1, &status, WUNTRACED | WCONTINUED) > 0)
- if (WEXITSTATUS(status) != 0)
- tst_resm(TFAIL, "child exit status is %d",
- WEXITSTATUS(status));
+ cleanup();
}
void setup(void)
{
- char buf[BUFSIZ];
- struct stat new;
+ tst_require_root(tst_exit);
- snprintf(buf, BUFSIZ, "%s%s", _PATH_KSM, "run");
- if (stat(buf, &new) == -1) {
- if (errno == ENOENT)
- tst_brkm(TCONF, NULL, "no KSM.");
- else
- tst_brkm(TBROK, NULL, "stat");
- }
- /*
- * setup a default signal hander and a
- * temporary working directory.
- */
tst_sig(FORK, DEF_HANDLER, NULL);
TEST_PAUSE;
}
-void usage(void)
+void cleanup(void)
{
- printf(" -n Number of processes\n");
- printf(" -s Memory allocation size in MB\n");
-}
-
-/* There is currently a bug will cause the test failure - *
- http://marc.info/?l=linux-mm&m=128928530308526&w=2 . Since it has
- still been discussed upstream, the interface here was added some
- flexiblity with path2, so it is possible to make changes here depends
- on the future implementation in kernel. For example, to verify
- (pages_sharing + pages_volatile) instead of a single item. */
-void check(char *path, char *path2, long int value)
-{
- FILE *fp;
- char buf[BUFSIZ], buf2[BUFSIZ];
-
- snprintf(buf, BUFSIZ, "%s%s", _PATH_KSM, path);
- fp = fopen(buf, "r");
- if (fp == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "fopen");
- if (fgets(buf, BUFSIZ, fp) == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "fgets");
- fclose(fp);
-
- tst_resm(TINFO, "%s is %ld.", path, atol(buf));
- if (path2 != NULL) {
- snprintf(buf2, BUFSIZ, "%s%s", _PATH_KSM, path2);
- fp = fopen(buf2, "r");
- if (fp == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "fopen");
- if (fgets(buf2, BUFSIZ, fp) == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "fgets");
- fclose(fp);
-
- tst_resm(TINFO, "%s is %ld.", path2, atol(buf2));
- if (atol(buf) + atol(buf2) != value)
- tst_resm(TFAIL, "%s + %s is not %ld.", path, path2,
- value);
- } else
- if (atol(buf) != value)
- tst_resm(TFAIL, "%s is not %ld.", path, value);
-}
-
-void verify(char value, int proc, int start, int end, int start2, int end2)
-{
- int i, j;
- void *s = NULL;
-
- s = malloc((end - start) * (end2 - start2));
- if (s == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "malloc");
-
- tst_resm(TINFO, "child %d verifies memory content.", proc);
- memset(s, value, (end - start) * (end2 - start2));
- if (memcmp(memory[proc][start], s, (end - start) * (end2 - start2)) !=
0)
- for (j = start; j < end; j++)
- for (i = start2; i < end2; i++)
- if (memory[proc][j][i] != value)
- tst_resm(TFAIL, "child %d has %c at "
- "%d,%d,%d.",
- proc, memory[proc][j][i], proc,
- j, i);
- free(s);
+ TEST_CLEANUP;
+ tst_exit();
}
-
-void group_check(int run, int pages_shared, int pages_sharing,
- int pages_volatile, int pages_unshared,
- int sleep_millisecs, int pages_to_scan)
-{
- /* 5 seconds for ksm to scan pages. */
- sleep(5);
- tst_resm(TINFO, "check!");
- check("run", NULL, run);
- check("pages_shared", NULL, pages_shared);
- check("pages_sharing", NULL, pages_sharing);
- check("pages_volatile", NULL, pages_volatile);
- check("pages_unshared", NULL, pages_unshared);
- check("sleep_millisecs", NULL, sleep_millisecs);
- check("pages_to_scan", NULL, pages_to_scan);
-}
\ No newline at end of file
diff --git a/testcases/kernel/mem/oom/oom01.c b/testcases/kernel/mem/oom/oom01.c
index c670d90..8c31458 100644
--- a/testcases/kernel/mem/oom/oom01.c
+++ b/testcases/kernel/mem/oom/oom01.c
@@ -38,14 +38,12 @@
#include <unistd.h>
#include "test.h"
#include "usctest.h"
-#include "lib/oom.h"
+#include "../include/mem.h"
char *TCID = "oom01";
int TST_TOTAL = 1;
extern int Tst_count;
-static void setup(void);
-
int main(int argc, char *argv[])
{
char *msg;
diff --git a/testcases/kernel/mem/oom/oom02.c b/testcases/kernel/mem/oom/oom02.c
index 68ed1ef..04c6507 100644
--- a/testcases/kernel/mem/oom/oom02.c
+++ b/testcases/kernel/mem/oom/oom02.c
@@ -42,9 +42,7 @@ int TST_TOTAL = 1;
#include <fcntl.h>
#include
#include <errno.h>
-#include "lib/oom.h"
-
-static void setup(void);
+#include "../include/mem.h"
int main(int argc, char *argv[])
{
diff --git a/testcases/kernel/mem/oom/oom03.c b/testcases/kernel/mem/oom/oom03.c
index dd09467..3c16018 100644
--- a/testcases/kernel/mem/oom/oom03.c
+++ b/testcases/kernel/mem/oom/oom03.c
@@ -35,14 +35,12 @@
#include <errno.h>
#include "test.h"
#include "usctest.h"
-#include "lib/oom.h"
+#include "../include/mem.h"
char *TCID = "oom03";
int TST_TOTAL = 1;
extern int Tst_count;
-static void setup(void);
-
int main(int argc, char *argv[])
{
char *msg;
diff --git a/testcases/kernel/mem/oom/oom04.c b/testcases/kernel/mem/oom/oom04.c
index 1dff85e..ce3161c 100644
--- a/testcases/kernel/mem/oom/oom04.c
+++ b/testcases/kernel/mem/oom/oom04.c
@@ -48,41 +48,7 @@ extern int Tst_count;
#include
#include <unistd.h>
#include <errno.h>
-#include <stdlib.h>
-#include
-#include <errno.h>
-#include
-#include <unistd.h>
-#include <stdarg.h>
-
-#define MAXNODES 512
-#define CPATH "/dev/cpuset"
-#define CPATH_NEW CPATH "/1"
-#define MEMCG_PATH "/dev/cgroup"
-#define MEMCG_PATH_NEW MEMCG_PATH "/1"
-#define _PATH_SYS_SYSTEM "/sys/devices/system"
-#define LENGTH (3UL<<30)
-#define TESTMEM (1UL<<30)
-#define MB (1UL<<20)
-#define NORMAL 1
-#define MLOCK 2
-#define KSM 3
-#define SYSFS_OVER "/proc/sys/vm/overcommit_memory"
-
-static char overcommit[BUFSIZ];
-
-static void setup(void);
-static void cleanup(void) LTP_ATTRIBUTE_NORETURN;
-static void oom(int testcase, int mempolicy, int lite);
-static long count_numa(void);
-static int path_exist(const char *path, ...);
-static void testoom(int mempolicy, int lite);
-static void alloc_mem(long int length, int testcase);
-static void test_alloc(int testcase, int lite);
-static void gather_cpus(char *cpus);
-static void umount_mem(char *path, char *path_new);
-static void mount_mem(char *name, char *fs, char *options, char *path,
- char *path_new);
+#include "../include/mem.h"
int main(int argc, char *argv[])
{
--
1.7.3.2From e66709488987a5dfc5c362152933c68796090c07 Mon Sep 17 00:00:00 2001
From: CAI Qian <[email protected]>
Date: Tue, 18 Jan 2011 11:07:44 +0800
Subject: [PATCH 1/3] rework code for oom and ksm tests
Mainly to reduce code duplication. Also, to add an option for ksm01 to
use a different memory allocation unit size to take advantage of
THP. In addition, adjust ksm01 according the latest upstream
development effort,
http://marc.info/?l=linux-mm&m=129473104716901&w=2
http://marc.info/?l=linux-mm&m=129442718808733&w=2
Signed-off-by: CAI Qian <[email protected]>
---
testcases/kernel/mem/ksm/ksm01.c | 448 +------------------------------------
testcases/kernel/mem/oom/oom01.c | 4 +-
testcases/kernel/mem/oom/oom02.c | 4 +-
testcases/kernel/mem/oom/oom03.c | 4 +-
testcases/kernel/mem/oom/oom04.c | 36 +---
5 files changed, 17 insertions(+), 479 deletions(-)
diff --git a/testcases/kernel/mem/ksm/ksm01.c b/testcases/kernel/mem/ksm/ksm01.c
index 09f71d7..26c5aa7 100644
--- a/testcases/kernel/mem/ksm/ksm01.c
+++ b/testcases/kernel/mem/ksm/ksm01.c
@@ -1,5 +1,5 @@
/*
- * functional testing for Kernel Samepage Merging (KSM)
+ * Kernel Samepage Merging (KSM)
*
* Basic tests were to start several programs with same and different
* memory contents and ensure only to merge the ones with the same
@@ -69,9 +69,7 @@
#include <errno.h>
#include "test.h"
#include "usctest.h"
-
-#define _PATH_KSM "/sys/kernel/mm/ksm/"
-#define MB (1024 * 1024)
+#include "../include/mem.h"
char *TCID = "ksm01";
int TST_TOTAL = 1;
@@ -85,455 +83,35 @@ static option_t options[] = {
{ "s:", &opt_size, &opt_sizestr},
{ NULL, NULL, NULL}
};
-static void setup(void);
-static void ksmtest(void);
-static void usage(void);
-static void check(char *path, char *path2, long int value);
-static void verify(char value, int proc, int start, int end, int start2,
- int end2);
-static void group_check(int run, int pages_shared, int pages_sharing,
- int pages_volatile, int pages_unshared,
- int sleep_millisecs, int pages_to_scan);
int main(int argc, char *argv[])
{
int lc;
char *msg;
+ int size = 128, num = 3, unit = 1;
- msg = parse_opts(argc, argv, options, usage);
- if (msg != (char *)NULL)
- tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
+ msg = parse_opts(argc, argv, ksm_options, ksm_usage);
+ if (msg != NULL)
+ tst_brkm(TBROK, tst_exit, "OPTION PARSING ERROR - %s", msg);
setup();
for (lc = 0; TEST_LOOPING(lc); lc++) {
Tst_count = 0;
- ksmtest();
+ check_ksm_options(&size, &num, &unit);
+ create_same_memory(size, num, unit);
}
- tst_exit();
-}
-
-void ksmtest(void)
-{
- char buf[BUFSIZ], buf2[BUFSIZ];
- int i, j, status, k, fd, *child;
- int size = 128, num = 3;
-
- if (opt_size) {
- size = atoi(opt_sizestr);
- if (size < 1)
- tst_brkm(TBROK, NULL,
- "size cannot be less than 1.");
- }
- if (opt_num) {
- num = atoi(opt_numstr);
- if (num < 3)
- tst_brkm(TBROK, NULL,
- "process number cannot be less 3.");
- }
- child = malloc(num);
- if (child == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "malloc");
-
- memory = malloc(num * sizeof(**memory));
- if (memory == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "malloc");
-
- switch (child[0] = fork()) {
- case -1:
- tst_brkm(TBROK|TERRNO, NULL, "fork");
- case 0:
- tst_resm(TINFO, "child 0 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
-
- tst_resm(TINFO, "child 0 continues...");
-
- /* Avoid TransparentHugePage allocation which can't ksm at the
- moment. */
- tst_resm(TINFO, "child 0 allocates %d MB filled with 'c'.",
- size);
- memory[0] = malloc(size * sizeof(*memory));
- if (memory[0] == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "malloc");
- for (j = 0; j < size; j++) {
- memory[0][j] = mmap(NULL, MB, PROT_READ|PROT_WRITE,
- MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
- if (memory[0][j] == MAP_FAILED)
- tst_brkm(TBROK|TERRNO, NULL, "mmap");
- if (madvise(memory[0][j], MB, MADV_MERGEABLE) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "madvise");
- for (i = 0; i < MB; i++)
- memory[0][j][i] = 'c';
- }
- tst_resm(TINFO, "child 0 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
-
- tst_resm(TINFO, "child 0 continues...");
- verify('c', 0, 0, size, 0, MB);
- tst_resm(TINFO, "child 0 changes memory content to 'd'.");
- for (j = 0; j < size; j++) {
- for (i = 0; i < MB; i++)
- memory[0][j][i] = 'd';
- }
- /* Unmerge. */
- tst_resm(TINFO, "child 0 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
-
- tst_resm(TINFO, "child 0 continues...");
- verify('d', 0, 0, size, 0, MB);
- /* Stop. */
- tst_resm(TINFO, "child 0 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child 0 continues...");
- exit(0);
- }
- switch (child[1] = fork()) {
- case -1:
- tst_brkm(TBROK|TERRNO, NULL, "fork");
- case 0:
- tst_resm(TINFO, "child 1 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child 1 continues...");
- tst_resm(TINFO, "child 1 allocates %d MB filled with 'a'.",
- size);
- memory[1] = malloc(size * sizeof(*memory));
- if (memory[1] == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "malloc");
- for (j = 0; j < size; j++) {
- memory[1][j] = mmap(NULL, MB, PROT_READ|PROT_WRITE,
- MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
- if (memory[1][j] == MAP_FAILED)
- tst_brkm(TBROK|TERRNO, NULL, "mmap");
- if (madvise(memory[1][j], MB, MADV_MERGEABLE) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "madvise");
- for (i = 0; i < MB; i++)
- memory[1][j][i] = 'a';
- }
-
- tst_resm(TINFO, "child 1 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child 1 continues...");
- verify('a', 1, 0, size, 0, MB);
- tst_resm(TINFO, "child 1 changes memory content to 'b'.");
- for (j = 0; j < size; j++) {
- for (i = 0; i < MB; i++)
- memory[1][j][i] = 'b';
- }
-
- tst_resm(TINFO, "child 1 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child 1 continues...");
- verify('b', 1, 0, size, 0, MB);
- tst_resm(TINFO, "child 1 changes memory content to 'd'");
- for (j = 0; j < size; j++) {
- for (i = 0; i < MB; i++)
- memory[1][j][i] = 'd';
- }
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
-
- tst_resm(TINFO, "child 1 continues...");
- verify('d', 1, 0, size, 0, MB);
- tst_resm(TINFO, "child 1 changes one page to 'e'.");
- memory[1][size - 1][MB - 1] = 'e';
-
- /* Unmerge. */
- tst_resm(TINFO, "child 1 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child 1 continues...");
- verify('e', 1, size - 1, size, MB - 1, MB);
- verify('d', 1, 0, size - 1, 0, MB - 1);
-
- /* Stop. */
- tst_resm(TINFO, "child 1 stops.");
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child 1 continues...");
- exit(0);
- }
- for (k = 2; k < num; k++) {
- switch (child[k] = fork()) {
- case -1:
- tst_brkm(TBROK|TERRNO, NULL, "fork");
- case 0:
- tst_resm(TINFO, "child %d stops.", k);
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child %d continues...", k);
- tst_resm(TINFO, "child %d allocates %d "
- "MB filled with 'a'.", k, size);
- memory[k] = malloc(size * sizeof(*memory));
- if (memory[k] == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "malloc");
- for (j = 0; j < size; j++) {
- memory[k][j] = mmap(NULL, MB,
- PROT_READ|PROT_WRITE,
- MAP_ANONYMOUS
- |MAP_PRIVATE, -1, 0);
- if (memory[k][j] == MAP_FAILED)
- tst_brkm(TBROK|TERRNO, NULL,
- "mmap");
- if (madvise(memory[k][j], MB,
- MADV_MERGEABLE) == -1)
- tst_brkm(TBROK|TERRNO, NULL,
- "madvise");
- for (i = 0; i < MB; i++)
- memory[k][j][i] = 'a';
- }
- tst_resm(TINFO, "child %d stops.", k);
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child %d continues...", k);
- tst_resm(TINFO, "child %d changes memory content to "
- "'d'", k);
- for (j = 0; j < size; j++) {
- for (i = 0; i < MB; i++)
- memory[k][j][i] = 'd';
- }
- /* Unmerge. */
- tst_resm(TINFO, "child %d stops.", k);
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child %d continues...", k);
-
- /* Stop. */
- tst_resm(TINFO, "child %d stops.", k);
- if (raise(SIGSTOP) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- tst_resm(TINFO, "child %d continues...", k);
- exit(0);
- }
- }
- tst_resm(TINFO, "KSM merging...");
- snprintf(buf, BUFSIZ, "%s%s", _PATH_KSM, "run");
- fd = open(buf, O_WRONLY);
- if (fd == -1)
- tst_brkm(TBROK|TERRNO, NULL, "open");
- if (write(fd, "1", 1) != 1)
- tst_brkm(TBROK|TERRNO, NULL, "write");
- close(fd);
- snprintf(buf, BUFSIZ, "%s%s", _PATH_KSM, "pages_to_scan");
- snprintf(buf2, BUFSIZ, "%d", size * 256 * num);
- fd = open(buf, O_WRONLY);
- if (fd == -1)
- tst_brkm(TBROK|TERRNO, NULL, "open");
- if (write(fd, buf2, strlen(buf2)) != strlen(buf2))
- tst_brkm(TBROK|TERRNO, NULL, "write");
- close(fd);
-
- snprintf(buf, BUFSIZ, "%s%s", _PATH_KSM, "sleep_millisecs");
- fd = open(buf, O_WRONLY);
- if (fd == -1)
- tst_brkm(TBROK|TERRNO, NULL, "open");
- if (write(fd, "0", 1) != 1)
- tst_brkm(TBROK|TERRNO, NULL, "write");
- close(fd);
-
- tst_resm(TINFO, "wait for all children to stop.");
- for (k = 0; k < num; k++) {
- if (waitpid(child[k], &status, WUNTRACED) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "waitpid");
- if (!WIFSTOPPED(status))
- tst_brkm(TBROK, NULL, "child %d was not stopped.",
- k);
- }
- tst_resm(TINFO, "resume all children.");
- for (k = 0; k < num; k++) {
- if (kill(child[k], SIGCONT) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill child[%d]", k);
- }
- group_check(1, 2, size * num * 256 - 2, 0, 0, 0, size * 256 * num);
-
- tst_resm(TINFO, "wait for child 1 to stop.");
- if (waitpid(child[1], &status, WUNTRACED) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "waitpid");
- if (!WIFSTOPPED(status))
- tst_brkm(TBROK, NULL, "child 1 was not stopped.");
-
- /* Child 1 changes all pages to 'b'. */
- tst_resm(TINFO, "resume child 1.");
- if (kill(child[1], SIGCONT) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- group_check(1, 3, size * num * 256 - 3, 0, 0, 0, size * 256 * num);
-
- tst_resm(TINFO, "wait for child 1 to stop.");
- if (waitpid(child[1], &status, WUNTRACED) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "waitpid");
- if (!WIFSTOPPED(status))
- tst_brkm(TBROK, NULL, "child 1 was not stopped.");
-
- /* All children change pages to 'd'. */
- tst_resm(TINFO, "resume all children.");
- for (k = 0; k < num; k++) {
- if (kill(child[k], SIGCONT) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill child[%d]", k);
- }
- group_check(1, 1, size * num * 256 - 1, 0, 0, 0, size * 256 * num);
-
- tst_resm(TINFO, "wait for all children to stop.");
- for (k = 0; k < num; k++) {
- if (waitpid(child[k], &status, WUNTRACED) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "waitpid");
- if (!WIFSTOPPED(status))
- tst_brkm(TBROK, NULL, "child %d was not stopped.",
- k);
- }
- /* Child 1 changes pages to 'e'. */
- tst_resm(TINFO, "resume child 1.");
- if (kill(child[1], SIGCONT) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill");
- group_check(1, 1, size * num * 256 - 2, 0, 1, 0, size * 256 * num);
-
- tst_resm(TINFO, "wait for child 1 to stop.");
- if (waitpid(child[1], &status, WUNTRACED) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "waitpid");
- if (!WIFSTOPPED(status))
- tst_brkm(TBROK, NULL, "child 1 was not stopped.");
-
- tst_resm(TINFO, "resume all children.");
- for (k = 0; k < num; k++) {
- if (kill(child[k], SIGCONT) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill child[%d]", k);
- }
- tst_resm(TINFO, "KSM unmerging...");
- snprintf(buf, BUFSIZ, "%s%s", _PATH_KSM, "run");
- fd = open(buf, O_WRONLY);
- if (fd == -1)
- tst_brkm(TBROK|TERRNO, NULL, "open");
- if (write(fd, "2", 1) != 1)
- tst_brkm(TBROK|TERRNO, NULL, "write");
- group_check(2, 0, 0, 0, 0, 0, size * 256 * num);
-
- tst_resm(TINFO, "wait for all children to stop.");
- for (k = 0; k < num; k++) {
- if (waitpid(child[k], &status, WUNTRACED) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "waitpid");
- if (!WIFSTOPPED(status))
- tst_brkm(TBROK, NULL, "child %d was not stopped.",
- k);
- }
- tst_resm(TINFO, "resume all children.");
- for (k = 0; k < num; k++) {
- if (kill(child[k], SIGCONT) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "kill child[%d]", k);
- }
- tst_resm(TINFO, "stop KSM.");
- if (lseek(fd, 0, SEEK_SET) == -1)
- tst_brkm(TBROK|TERRNO, NULL, "lseek");
- if (write(fd, "0", 1) != 1)
- tst_brkm(TBROK|TERRNO, NULL, "write");
- close(fd);
- group_check(0, 0, 0, 0, 0, 0, size * 256 * num);
- while (waitpid(-1, &status, WUNTRACED | WCONTINUED) > 0)
- if (WEXITSTATUS(status) != 0)
- tst_resm(TFAIL, "child exit status is %d",
- WEXITSTATUS(status));
+ cleanup();
}
void setup(void)
{
- char buf[BUFSIZ];
- struct stat new;
+ tst_require_root(tst_exit);
- snprintf(buf, BUFSIZ, "%s%s", _PATH_KSM, "run");
- if (stat(buf, &new) == -1) {
- if (errno == ENOENT)
- tst_brkm(TCONF, NULL, "no KSM.");
- else
- tst_brkm(TBROK, NULL, "stat");
- }
- /*
- * setup a default signal hander and a
- * temporary working directory.
- */
tst_sig(FORK, DEF_HANDLER, NULL);
TEST_PAUSE;
}
-void usage(void)
+void cleanup(void)
{
- printf(" -n Number of processes\n");
- printf(" -s Memory allocation size in MB\n");
-}
-
-/* There is currently a bug will cause the test failure - *
- http://marc.info/?l=linux-mm&m=128928530308526&w=2 . Since it has
- still been discussed upstream, the interface here was added some
- flexiblity with path2, so it is possible to make changes here depends
- on the future implementation in kernel. For example, to verify
- (pages_sharing + pages_volatile) instead of a single item. */
-void check(char *path, char *path2, long int value)
-{
- FILE *fp;
- char buf[BUFSIZ], buf2[BUFSIZ];
-
- snprintf(buf, BUFSIZ, "%s%s", _PATH_KSM, path);
- fp = fopen(buf, "r");
- if (fp == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "fopen");
- if (fgets(buf, BUFSIZ, fp) == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "fgets");
- fclose(fp);
-
- tst_resm(TINFO, "%s is %ld.", path, atol(buf));
- if (path2 != NULL) {
- snprintf(buf2, BUFSIZ, "%s%s", _PATH_KSM, path2);
- fp = fopen(buf2, "r");
- if (fp == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "fopen");
- if (fgets(buf2, BUFSIZ, fp) == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "fgets");
- fclose(fp);
-
- tst_resm(TINFO, "%s is %ld.", path2, atol(buf2));
- if (atol(buf) + atol(buf2) != value)
- tst_resm(TFAIL, "%s + %s is not %ld.", path, path2,
- value);
- } else
- if (atol(buf) != value)
- tst_resm(TFAIL, "%s is not %ld.", path, value);
-}
-
-void verify(char value, int proc, int start, int end, int start2, int end2)
-{
- int i, j;
- void *s = NULL;
-
- s = malloc((end - start) * (end2 - start2));
- if (s == NULL)
- tst_brkm(TBROK|TERRNO, NULL, "malloc");
-
- tst_resm(TINFO, "child %d verifies memory content.", proc);
- memset(s, value, (end - start) * (end2 - start2));
- if (memcmp(memory[proc][start], s, (end - start) * (end2 - start2)) != 0)
- for (j = start; j < end; j++)
- for (i = start2; i < end2; i++)
- if (memory[proc][j][i] != value)
- tst_resm(TFAIL, "child %d has %c at "
- "%d,%d,%d.",
- proc, memory[proc][j][i], proc,
- j, i);
- free(s);
+ TEST_CLEANUP;
+ tst_exit();
}
-
-void group_check(int run, int pages_shared, int pages_sharing,
- int pages_volatile, int pages_unshared,
- int sleep_millisecs, int pages_to_scan)
-{
- /* 5 seconds for ksm to scan pages. */
- sleep(5);
- tst_resm(TINFO, "check!");
- check("run", NULL, run);
- check("pages_shared", NULL, pages_shared);
- check("pages_sharing", NULL, pages_sharing);
- check("pages_volatile", NULL, pages_volatile);
- check("pages_unshared", NULL, pages_unshared);
- check("sleep_millisecs", NULL, sleep_millisecs);
- check("pages_to_scan", NULL, pages_to_scan);
-}
\ No newline at end of file
diff --git a/testcases/kernel/mem/oom/oom01.c b/testcases/kernel/mem/oom/oom01.c
index c670d90..8c31458 100644
--- a/testcases/kernel/mem/oom/oom01.c
+++ b/testcases/kernel/mem/oom/oom01.c
@@ -38,14 +38,12 @@
#include <unistd.h>
#include "test.h"
#include "usctest.h"
-#include "lib/oom.h"
+#include "../include/mem.h"
char *TCID = "oom01";
int TST_TOTAL = 1;
extern int Tst_count;
-static void setup(void);
-
int main(int argc, char *argv[])
{
char *msg;
diff --git a/testcases/kernel/mem/oom/oom02.c b/testcases/kernel/mem/oom/oom02.c
index 68ed1ef..04c6507 100644
--- a/testcases/kernel/mem/oom/oom02.c
+++ b/testcases/kernel/mem/oom/oom02.c
@@ -42,9 +42,7 @@ int TST_TOTAL = 1;
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>
-#include "lib/oom.h"
-
-static void setup(void);
+#include "../include/mem.h"
int main(int argc, char *argv[])
{
diff --git a/testcases/kernel/mem/oom/oom03.c b/testcases/kernel/mem/oom/oom03.c
index dd09467..3c16018 100644
--- a/testcases/kernel/mem/oom/oom03.c
+++ b/testcases/kernel/mem/oom/oom03.c
@@ -35,14 +35,12 @@
#include <errno.h>
#include "test.h"
#include "usctest.h"
-#include "lib/oom.h"
+#include "../include/mem.h"
char *TCID = "oom03";
int TST_TOTAL = 1;
extern int Tst_count;
-static void setup(void);
-
int main(int argc, char *argv[])
{
char *msg;
diff --git a/testcases/kernel/mem/oom/oom04.c b/testcases/kernel/mem/oom/oom04.c
index 1dff85e..ce3161c 100644
--- a/testcases/kernel/mem/oom/oom04.c
+++ b/testcases/kernel/mem/oom/oom04.c
@@ -48,41 +48,7 @@ extern int Tst_count;
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <signal.h>
-#include <unistd.h>
-#include <stdarg.h>
-
-#define MAXNODES 512
-#define CPATH "/dev/cpuset"
-#define CPATH_NEW CPATH "/1"
-#define MEMCG_PATH "/dev/cgroup"
-#define MEMCG_PATH_NEW MEMCG_PATH "/1"
-#define _PATH_SYS_SYSTEM "/sys/devices/system"
-#define LENGTH (3UL<<30)
-#define TESTMEM (1UL<<30)
-#define MB (1UL<<20)
-#define NORMAL 1
-#define MLOCK 2
-#define KSM 3
-#define SYSFS_OVER "/proc/sys/vm/overcommit_memory"
-
-static char overcommit[BUFSIZ];
-
-static void setup(void);
-static void cleanup(void) LTP_ATTRIBUTE_NORETURN;
-static void oom(int testcase, int mempolicy, int lite);
-static long count_numa(void);
-static int path_exist(const char *path, ...);
-static void testoom(int mempolicy, int lite);
-static void alloc_mem(long int length, int testcase);
-static void test_alloc(int testcase, int lite);
-static void gather_cpus(char *cpus);
-static void umount_mem(char *path, char *path_new);
-static void mount_mem(char *name, char *fs, char *options, char *path,
- char *path_new);
+#include "../include/mem.h"
int main(int argc, char *argv[])
{
--
1.7.3.2
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