[LTP] [PATCH] lib: tst_test: tst_reinit() abort when already initialized

[Li Wang]

> > I guess that we also need to revert:

I look into Petr's patch, seems we can go another way to replace
the checkpoint method.

How about this:

--- a/testcases/kernel/security/integrity/ima/src/ima_mmap.c
+++ b/testcases/kernel/security/integrity/ima/src/ima_mmap.c
@@ -34,10 +34,7 @@ static void run(void)
        file = SAFE_MMAP(NULL, MMAPSIZE, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
        SAFE_CLOSE(fd);

-       tst_reinit();
-       TST_CHECKPOINT_WAIT(0);
-       /* keep running until ima_violations.sh open and close file */
-       TST_CHECKPOINT_WAKE_AND_WAIT(0);
+       raise(SIGSTOP);

        tst_res(TPASS, "test completed");
 }
diff --git a/testcases/kernel/security/integrity/ima/tests/ima_violations.sh b/testcases/kernel/security/integrity/ima/tests/ima_violations.sh
index d7dcd077b..e772cf53b 100755
--- a/testcases/kernel/security/integrity/ima/tests/ima_violations.sh
+++ b/testcases/kernel/security/integrity/ima/tests/ima_violations.sh
@@ -156,6 +156,14 @@ test2()
        validate $num_violations $count $search
 }

+wait_process_stopped()
+{
+       while true; do
+               [ "$(awk '{print $3}' /proc/$1/stat 2>/dev/null)" = "T" ] && break
+               usleep 100000
+       done
+}
+
 test3()
 {
        local pid
@@ -173,13 +181,13 @@ test3()
        ima_mmap -f $FILE &
        pid=$!

-       # wait for violations appear in logs
-       TST_CHECKPOINT_WAKE_AND_WAIT 0
+       wait_process_stopped $pid

        open_file_read
        close_file_read

-       TST_CHECKPOINT_WAKE 0
+       kill -CONT $pid
+       wait $pid

        validate $num_violations $count $search


-- 
Regards,
Li Wang