[GIT PULL] hw_breakpoint fixes

[Frederic Weisbecker <fweisbec@gmail.com>]

Ingo,

Please pull the perf/urgent branch that can be found at:

git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing.git
	perf/urgent

I couldn't get Oleg's review/ack for the generic ptrace part
but I think he was fine with the general solution when it was
a simple draft. Few things have changed since then, I essentially
addressed his review.

Thanks,
	Frederic
---

Frederic Weisbecker (5):
      ptrace: Prepare to fix racy accesses on task breakpoints
      x86, hw_breakpoints: Fix racy access to ptrace breakpoints
      powerpc, hw_breakpoints: Fix racy access to ptrace breakpoints
      arm, hw_breakpoints: Fix racy access to ptrace breakpoints
      sh, hw_breakpoints: Fix racy access to ptrace breakpoints


 arch/arm/kernel/ptrace.c     |    8 ++++++++
 arch/powerpc/kernel/ptrace.c |    3 +++
 arch/sh/kernel/ptrace_32.c   |    4 ++++
 arch/x86/kernel/ptrace.c     |   36 ++++++++++++++++++++++++++----------
 include/linux/ptrace.h       |   13 ++++++++++++-
 include/linux/sched.h        |    3 +++
 kernel/exit.c                |    2 +-
 kernel/ptrace.c              |   17 +++++++++++++++++
 8 files changed, 74 insertions(+), 12 deletions(-)