[PATCH RESEND] selftests: add missing include – Linux-kselftest-mirror

I failed to build this test on Ubuntu 24.04.
Compiler complained about undefined functions mount, umount and some
mount related flags.

Signed-off-by: Chen Linxuan chenlinxuan@uniontech.com
—
tools/testing/selftests/pid_namespace/pid_max.c | 1 +
1 file changed, 1 insertion(+)

diff –git a/tools/testing/selftests/pid_namespace/pid_max.c b/tools/testing/selftests/pid_namespace/pid_max.c
index 96f274f0582b6..c3ee8a2eff75b 100644
— a/tools/testing/selftests/pid_namespace/pid_max.c
+++ b/tools/testing/selftests/pid_namespace/pid_max.c
@@ -12,6 +12,7 @@
#include
#include
#include
+#include

#include “../kselftest_harness.h”
#include “../pidfd/pidfd.h”

—
2.43.0