RFC introduce a syscall for posix clock tuning

Recently on lkml, we discussed adding a new syscall, with the motivation of supporting PTP clocks. Here is my suggestion how this should look like. I would like to get some agreement about this new interface before proceeding with the PTP stuff itself.

Thanks,
Richard

Richard Cochran (1):
posix clocks: introduce syscall for clock tuning.

 arch/arm/include/asm/unistd.h      |    1 +
 arch/arm/kernel/calls.S            |    1 +
 arch/blackfin/include/asm/unistd.h |    3 +-
 arch/blackfin/mach-common/entry.S  |    1 +
 arch/powerpc/include/asm/systbl.h  |    1 +
 arch/powerpc/include/asm/unistd.h  |    3 +-
 arch/x86/ia32/ia32entry.S          |    1 +
 arch/x86/include/asm/unistd_32.h   |    3 +-
 arch/x86/include/asm/unistd_64.h   |    2 +
 arch/x86/kernel/syscall_table_32.S |    1 +
 include/linux/posix-timers.h       |    5 ++++
 include/linux/syscalls.h           |    3 ++
 kernel/compat.c                    |   20 ++++++++++++++++++
 kernel/posix-cpu-timers.c          |    5 ++++
 kernel/posix-timers.c              |   38 ++++++++++++++++++++++++++++++++++++
 15 files changed, 85 insertions(+), 3 deletions(-)