[LTP] [PATCH] pidns05: Use tst_getpid()

[Martin Doucha]

Older glibc versions cache getpid() results. Calling clone() through
the direct syscall interface (bypassing glibc) with the CLONE_NEWPID
argument will result in stale getpid() cache and the test will fail.
Use tst_getpid() instead to get the correct PID value.

Signed-off-by: Martin Doucha <mdoucha@suse.cz>
---
 testcases/kernel/containers/pidns/pidns05.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/testcases/kernel/containers/pidns/pidns05.c b/testcases/kernel/containers/pidns/pidns05.c
index ec9ce9bf2..0e7739aaa 100644
--- a/testcases/kernel/containers/pidns/pidns05.c
+++ b/testcases/kernel/containers/pidns/pidns05.c
@@ -28,7 +28,7 @@ static void child_func(int *level)
 {
 	pid_t cpid, ppid;
 
-	cpid = getpid();
+	cpid = tst_getpid();
 	ppid = getppid();
 
 	TST_EXP_EQ_LI(cpid, 1);
@@ -55,7 +55,7 @@ static int find_cinit_pids(pid_t *pids)
 	int next = 0;
 	pid_t parentpid, pgid, pgid2;
 
-	parentpid = getpid();
+	parentpid = tst_getpid();
 	pgid = SAFE_GETPGID(parentpid);
 
 	for (pid = 2; pid < pid_max; pid++) {
-- 
2.42.0