[PATCH 0/3 for 4.2] sys_membarrier (x86, generic)

[Mathieu Desnoyers]

Hi,

I am submitting the membarrier system call for the upcoming Linux 4.2
merge window. It would be nice if it could sit a few days in Andrew
Morton's tree before that.

A major addition to sys_membarrier changelog is the inclusion of the
list of users which would benefit from having this system call today.

Thanks,

Mathieu

Mathieu Desnoyers (2):
  sys_membarrier(): system-wide memory barrier (generic, x86) (v19)
  selftests: enhance membarrier syscall test

Pranith Kumar (1):
  selftests: add membarrier syscall test

 MAINTAINERS                                        |   8 ++
 arch/x86/syscalls/syscall_32.tbl                   |   1 +
 arch/x86/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

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