__NR_userfaultfd  789 arch/arm64/include/asm/unistd32.h #define __NR_userfaultfd 388
__NR_userfaultfd  412 arch/sh/include/uapi/asm/unistd_64.h #define __NR_userfaultfd	388
__NR_userfaultfd  755 include/uapi/asm-generic/unistd.h #define __NR_userfaultfd 282
__NR_userfaultfd  755 tools/include/uapi/asm-generic/unistd.h #define __NR_userfaultfd 282