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zdtm: add test for shared threads FS structure migration

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Signed-off-by: Stanislav Kinsburskiy <skinsbursky@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
This commit is contained in:
Stanislav Kinsburskiy 2016-09-23 17:41:50 +03:00 committed by Pavel Emelyanov
parent a8969a9542
commit 0bda4caa43
2 changed files with 107 additions and 0 deletions
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2
test/zdtm/static/Makefile
View File

@ -151,6 +151,7 @@ TST_NOFILE := \
loginuid \
cgroupns \
helper_zombie_child \
clone_fs \
# jobctl00 \
ifneq ($(SRCARCH),arm)
@ -407,6 +408,7 @@ sk-freebind-false: override CFLAGS += -DZDTM_FREEBIND_FALSE
stopped01: override CFLAGS += -DZDTM_STOPPED_KILL
stopped02: override CFLAGS += -DZDTM_STOPPED_TKILL
stopped12: override CFLAGS += -DZDTM_STOPPED_KILL -DZDTM_STOPPED_TKILL
clone_fs: override LDLIBS += -pthread
$(LIB): force
$(Q) $(MAKE) -C $(LIBDIR)

105
test/zdtm/static/clone_fs.c Normal file
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@ -0,0 +1,105 @@
#define _GNU_SOURCE
#include <stdlib.h>
#include <syscall.h>
#include <pthread.h>
#include "zdtmtst.h"
const char *test_doc = "Check that shared FS is migrated properly";
const char *test_author = "Stanislav Kinsburskiy <skinsbursky@virtuozzo.com>";
enum kcmp_type {
KCMP_FILE,
KCMP_VM,
KCMP_FILES,
KCMP_FS,
KCMP_SIGHAND,
KCMP_IO,
KCMP_SYSVSEM,
KCMP_TYPES,
};
static int kcmp(int type, pid_t pid1, pid_t pid2, unsigned long idx1, unsigned long idx2)
{
int ret;
ret = syscall(SYS_kcmp, pid1, pid2, type, idx1, idx2);
switch (ret) {
case 0:
break;
case 1:
case 2:
test_msg("FS for pids %d and %d doesn't match: %d\n", pid1, pid2, ret);
break;
case -1:
pr_perror("kcmp (type: %d, pid1: %d, pid2: %d, "
"idx1: %ld, idx2: %ld) failed: %d\n",
type, pid1, pid2, idx1, idx2, errno);
break;
default:
pr_perror("kcmp (type: %d, pid1: %d, pid2: %d, "
"idx1: %ld, idx2: %ld) returned %d\n\n",
type, pid1, pid2, idx1, idx2, ret);
break;
}
return ret;
}
#define gettid(code) \
syscall(__NR_gettid)
static pthread_mutex_t init_lock;
static pthread_mutex_t exit_lock;
static void *thread_func(void *tid2)
{
*(int *)tid2 = gettid();
pthread_mutex_unlock(&init_lock);
pthread_mutex_lock(&exit_lock);
return NULL;
}
int main(int argc, char **argv)
{
pid_t tid;
int ret;
pthread_t th;
test_init(argc, argv);
pthread_mutex_init(&init_lock, NULL);
pthread_mutex_lock(&init_lock);
pthread_mutex_init(&exit_lock, NULL);
pthread_mutex_lock(&exit_lock);
if (pthread_create(&th, NULL, thread_func, &tid)) {
fail("Can't pthread_create");
return 1;
}
pthread_mutex_lock(&init_lock);
ret = kcmp(KCMP_FS, gettid(), tid, 0, 0);
if (ret)
exit(1);
test_daemon();
test_waitsig();
ret = kcmp(KCMP_FS, gettid(), tid, 0, 0);
if (ret) {
fail();
exit(1);
}
pthread_mutex_unlock(&exit_lock);
pthread_join(th, NULL);
pass();
return 0;
}