FUTEX_OP_XOR       29 include/asm-generic/futex.h 	case FUTEX_OP_XOR:
FUTEX_OP_XOR       31 include/asm-parisc/futex.h 	case FUTEX_OP_XOR:
FUTEX_OP_XOR       76 include/asm-x86/futex.h 	case FUTEX_OP_XOR: