[PATCH v4 -tip 0/3] x86/kprobes: bugfixes and split optprobes

[Masami Hiramatsu]

Hi,

Here are the patches for fixing bugs in kprobes on x86.

- Both bugs are related to the optprobe.
- First bugfix is optprobe to recover instructions when
  thoes are modified with jump.
- Second bugfix is kprobes to recover it too.

This series also includes a patch which split optprobes
parts out from kprobes x86 implementation.

Ingo, I've added the splitting patch according your
advice :)

Thank you,

---

Masami Hiramatsu (3):
      x86/kprobes: Split out optprobe related code to kprobes-opt.c
      [BUGFIX] x86/kprobes: Fix a bug which can modify kernel code
      [BUGFIX] x86/kprobes: Fix to recover instructions on optimized path


 arch/x86/kernel/Makefile         |    1 
 arch/x86/kernel/kprobes-common.h |  106 ++++++
 arch/x86/kernel/kprobes-opt.c    |  516 +++++++++++++++++++++++++++++++
 arch/x86/kernel/kprobes.c        |  633 ++++----------------------------------
 4 files changed, 684 insertions(+), 572 deletions(-)
 create mode 100644 arch/x86/kernel/kprobes-common.h
 create mode 100644 arch/x86/kernel/kprobes-opt.c

-- 
Masami HIRAMATSU
Software Platform Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: masami.hiramatsu.pt@hitachi.com