uprobes: return probe implementation

  There are RFC uretprobes implementation. I'd be grateful for any review.

thanks,

Anton Arapov (6):
  uretprobes/x86: hijack return address
  uretprobes: trampoline implementation
  uretprobes: return probe entry, prepare uretprobe
  uretprobes: invoke return probe handlers
  uprobes: add bp_vaddr argument to consumer handler
  uretprobes: register() and unregister() implementation

 arch/x86/include/asm/uprobes.h |   6 +
 arch/x86/kernel/uprobes.c      |  57 ++++++++
 include/linux/uprobes.h        |  28 +++-
 kernel/events/uprobes.c        | 305 ++++++++++++++++++++++++++++++++++++++---
 kernel/trace/trace_uprobe.c    |  20 +--
 5 files changed, 383 insertions(+), 33 deletions(-)

-- 
1.8.0.2

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