Fix compilation error in pid_max.c by including <sys/mount.h> to define mount(), umount2(), MS_PRIVATE, MS_REC, and MNT_DETACH.

The test now builds successfully.

Signed-off-by: Moon Hee Lee moonhee.lee.ca@gmail.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 51c414faabb0..972bedc475f1 100644 --- a/tools/testing/selftests/pid_namespace/pid_max.c +++ b/tools/testing/selftests/pid_namespace/pid_max.c @@ -11,6 +11,7 @@ #include <string.h> #include <syscall.h> #include <sys/wait.h> +#include <sys/mount.h>

#include "../kselftest_harness.h" #include "../pidfd/pidfd.h"