Hi Andrew, Here is a repost of sys_membarrier, rebased on top of Linus commit c4b5fd3fb2058b650447372472ad24e2a989f9f6 without any change since the last v19 post other that proceeding to further testing. When merging with other system calls, system call number conflicts should be quite straightforward to handle, there is nothing special there. Please consider pulling it into your tree in preparation for the following merge window. Thanks! Mathieu Mathieu Desnoyers (2): sys_membarrier(): system-wide memory barrier (generic, x86) selftests: enhance membarrier syscall test Pranith Kumar (1): selftests: add membarrier syscall test MAINTAINERS | 8 ++ arch/x86/entry/syscalls/syscall_32.tbl | 1 + arch/x86/entry/syscalls/syscall_64.tbl | 1 + include/linux/syscalls.h | 2 + include/uapi/asm-generic/unistd.h | 4 +- include/uapi/linux/Kbuild | 1 + include/uapi/linux/membarrier.h | 53 +++++++++ init/Kconfig | 12 ++ kernel/Makefile | 1 + kernel/membarrier.c | 66 +++++++++++ kernel/sys_ni.c | 3 + tools/testing/selftests/Makefile | 1 + tools/testing/selftests/membarrier/.gitignore | 1 + tools/testing/selftests/membarrier/Makefile | 11 ++ .../testing/selftests/membarrier/membarrier_test.c | 121 +++++++++++++++++++++ 15 files changed, 285 insertions(+), 1 deletion(-) create mode 100644 include/uapi/linux/membarrier.h create mode 100644 kernel/membarrier.c create mode 100644 tools/testing/selftests/membarrier/.gitignore create mode 100644 tools/testing/selftests/membarrier/Makefile create mode 100644 tools/testing/selftests/membarrier/membarrier_test.c -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html