[LTP] [PATCH v4 07/10] Rewrite shmem_2nstest.c using new LTP API

[Cyril Hrubis]

Hi!
Pushed with a few changes, thanks.

I did rearrange the code to make it a bit simpler and removed some
useless code.

Full diff:

diff --git a/testcases/kernel/containers/sysvipc/shmem_2nstest.c b/testcases/kernel/containers/sysvipc/shmem_2nstest.c
index e6c1a16fa..ea3de94bd 100644
--- a/testcases/kernel/containers/sysvipc/shmem_2nstest.c
+++ b/testcases/kernel/containers/sysvipc/shmem_2nstest.c
@@ -40,36 +40,28 @@
 static char *str_op;
 static int use_clone;
 
-/*
- * check_shmem1() does not read -- it writes to check_shmem2() when it's done.
- */
 static int check_shmem1(LTP_ATTRIBUTE_UNUSED void *vtest)
 {
-	SAFE_SHMGET(TESTKEY, 100, IPC_CREAT);
+	int id;
+
+	id = SAFE_SHMGET(TESTKEY, 100, IPC_CREAT);
 
 	tst_res(TINFO, "container1: able to create shared mem segment");
 
-	TST_CHECKPOINT_WAKE(0);
+	TST_CHECKPOINT_WAKE_AND_WAIT(0);
+
+	SAFE_SHMCTL(id, IPC_RMID, NULL);
 
 	return 0;
 }
 
-/*
- * check_shmem2() reads from check_shmem1() and writes to main() when it's done.
- */
 static int check_shmem2(LTP_ATTRIBUTE_UNUSED void *vtest)
 {
-	int id;
-
 	TST_CHECKPOINT_WAIT(0);
 
 	TEST(shmget(TESTKEY, 100, 0));
 
 	if (TST_RET < 0) {
-		SAFE_SHMGET(TESTKEY, 100, IPC_CREAT);
-
-		tst_res(TINFO, "container2: able to allocate shmem seg with the same key");
-
 		if (use_clone == T_NONE)
 			tst_res(TFAIL, "Plain cloned process didn't find shmem segment");
 		else
@@ -81,8 +73,7 @@ static int check_shmem2(LTP_ATTRIBUTE_UNUSED void *vtest)
 			tst_res(TFAIL, "%s: in namespace2 found the shmem segment created in namespace1", str_op);
 	}
 
-	id = SAFE_SHMGET(TESTKEY, 100, 0);
-	SAFE_SHMCTL(id, IPC_RMID, NULL);
+	TST_CHECKPOINT_WAKE(0);
 
 	return 0;
 }

-- 
Cyril Hrubis
chrubis@suse.cz