FUTEX_TRYLOCK_PI 36 include/uapi/linux/futex.h #define FUTEX_TRYLOCK_PI_PRIVATE (FUTEX_TRYLOCK_PI | FUTEX_PRIVATE_FLAG) FUTEX_TRYLOCK_PI 3886 kernel/futex.c case FUTEX_TRYLOCK_PI: FUTEX_TRYLOCK_PI 3914 kernel/futex.c case FUTEX_TRYLOCK_PI: