[GIT PULL] uprobes: single-step cleanups + reg/unreg fix

[Oleg Nesterov]

Ingo, please pull from

  git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc uprobes/core

- arch_uprobe_*_step() should die before arm port.

- "Use percpu_rw_semaphore to fix register/unregister vs dup_mmap() race"
  fixes the serious bug, the "random" task can be killed after unregister.

Jovi Zhang (1):
      uprobes: Fix misleading log entry

Oleg Nesterov (5):
      uprobes/powerpc: Don't clear TIF_UPROBE in do_notify_resume()
      uprobes/powerpc: Do not use arch_uprobe_*_step() helpers
      uprobes/x86: Cleanup the single-stepping code
      uprobes: Kill arch_uprobe_enable/disable_step() hooks
      uprobes: Use percpu_rw_semaphore to fix register/unregister vs dup_mmap() race

Rabin Vincent (1):
      uprobes: Flush cache after xol write

 arch/powerpc/kernel/signal.c  |    4 +--
 arch/powerpc/kernel/uprobes.c |    6 ++++
 arch/x86/kernel/uprobes.c     |   54 ++++++++++++++--------------------------
 include/linux/uprobes.h       |   10 ++++++-
 kernel/events/uprobes.c       |   43 +++++++++++++++++++++-----------
 kernel/fork.c                 |    2 +
 kernel/trace/trace_uprobe.c   |    2 +-
 7 files changed, 65 insertions(+), 56 deletions(-)

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