[PATCH v5] shadow variables

[Joe Lawrence]

v5:

- Adopt Petr's suggested combined __klp_shadow_get_or_attach() routine
- API
  - s/klp_shadow_attach/klp_shadow_alloc/g
  - s/klp_shadow_get_or_attach/klp_shadow_get_or_alloc/g
  - s/klp_shadow_detach/klp_shadow_free/g
  - remove klp_shadow_update_or_attach()
- Code comments
  - Add Petr's description for klp_shadow_get_or_alloc()
  - Swap paragraphs in klp_shadow_alloc() description
  - Add short description of klp_shadow_lock
  - Remove incorrect klp_shadow_lock comment in klp_shadow_match() and
    klp_shadow_set()
  - Add a use-after-free disclaimer to klp_shadow_free() and
    klp_shadow_free_all()
- Samples: Fix use-after-free in memory leak fix modules
- Doc: Simplify code in sta_info_free() use-case

Joe Lawrence (1):
  livepatch: introduce shadow variable API

 Documentation/livepatch/shadow-vars.txt   | 191 +++++++++++++++++++
 include/linux/livepatch.h                 |   8 +
 kernel/livepatch/Makefile                 |   2 +-
 kernel/livepatch/shadow.c                 | 296 ++++++++++++++++++++++++++++++
 samples/Kconfig                           |   5 +-
 samples/livepatch/Makefile                |   3 +
 samples/livepatch/livepatch-shadow-fix1.c | 173 +++++++++++++++++
 samples/livepatch/livepatch-shadow-fix2.c | 168 +++++++++++++++++
 samples/livepatch/livepatch-shadow-mod.c  | 224 ++++++++++++++++++++++
 9 files changed, 1066 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/livepatch/shadow-vars.txt
 create mode 100644 kernel/livepatch/shadow.c
 create mode 100644 samples/livepatch/livepatch-shadow-fix1.c
 create mode 100644 samples/livepatch/livepatch-shadow-fix2.c
 create mode 100644 samples/livepatch/livepatch-shadow-mod.c

-- 
1.8.3.1