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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching

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Pull livepatching updates from Jiri Kosina:

 - support for something we call 'atomic replace', and allows for much
   better handling of cumulative patches (which is something very useful
   for distros), from Jason Baron with help of Petr Mladek and Joe
   Lawrence

 - improvement of handling of tasks blocking finalization, from Miroslav
   Benes

 - update of MAINTAINERS file to reflect move towards group
   maintainership

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching: (22 commits)
  livepatch/selftests: use "$@" to preserve argument list
  livepatch: Module coming and going callbacks can proceed with all listed patches
  livepatch: Proper error handling in the shadow variables selftest
  livepatch: return -ENOMEM on ptr_id() allocation failure
  livepatch: Introduce klp_for_each_patch macro
  livepatch: core: Return EOPNOTSUPP instead of ENOSYS
  selftests/livepatch: add DYNAMIC_DEBUG config dependency
  livepatch: samples: non static warnings fix
  livepatch: update MAINTAINERS
  livepatch: Remove signal sysfs attribute
  livepatch: Send a fake signal periodically
  selftests/livepatch: introduce tests
  livepatch: Remove ordering (stacking) of the livepatches
  livepatch: Atomic replace and cumulative patches documentation
  livepatch: Remove Nop structures when unused
  livepatch: Add atomic replace
  livepatch: Use lists to manage patches, objects and functions
  livepatch: Simplify API by removing registration step
  livepatch: Don't block the removal of patches loaded after a forced transition
  livepatch: Consolidate klp_free functions
  ...
This commit is contained in:
Linus Torvalds
2019-03-08 08:58:25 -08:00
parent 851ca779d1 f9d1381456
commit b7af27bf94
35 changed files with 2856 additions and 1278 deletions
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12
Documentation/ABI/testing/sysfs-kernel-livepatch
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@@ -33,18 +33,6 @@ Description:
An attribute which indicates whether the patch is currently in
transition.
What: /sys/kernel/livepatch/<patch>/signal
Date: Nov 2017
KernelVersion: 4.15.0
Contact: live-patching@vger.kernel.org
Description:
A writable attribute that allows administrator to affect the
course of an existing transition. Writing 1 sends a fake
signal to all remaining blocking tasks. The fake signal
means that no proper signal is delivered (there is no data in
signal pending structures). Tasks are interrupted or woken up,
and forced to change their patched state.
What: /sys/kernel/livepatch/<patch>/force
Date: Nov 2017
KernelVersion: 4.15.0