[PATCH 0/5] mmu notifer debug annotations

Daniel Vetter daniel.vetter at ffwll.ch
Mon Aug 26 20:14:20 UTC 2019

Hi all,

Next round. Changes:

- I kept the two lockdep annotations patches since when I rebased this
  before retesting linux-next didn't yet have them. Otherwise unchanged
  except for a trivial conflict.

- Ack from Peter Z. on the kernel.h patch.

- Added annotations for non_block to invalidate_range_end. I can't test
  that readily since i915 doesn't use it.

- Added might_sleep annotations to also make sure the mm side keeps up
  it's side of the contract here around what's allowed and what's not.

Comments, feedback, review as usual very much appreciated.

Cheers, Daniel

Daniel Vetter (5):
  mm, notifier: Add a lockdep map for invalidate_range_start/end
  mm, notifier: Prime lockdep
  kernel.h: Add non_block_start/end()
  mm, notifier: Catch sleeping/blocking for !blockable
  mm, notifier: annotate with might_sleep()

 include/linux/kernel.h       | 25 ++++++++++++++++++++++++-
 include/linux/mmu_notifier.h | 13 +++++++++++++
 include/linux/sched.h        |  4 ++++
 kernel/sched/core.c          | 19 ++++++++++++++-----
 mm/mmu_notifier.c            | 31 +++++++++++++++++++++++++++++--
 5 files changed, 84 insertions(+), 8 deletions(-)


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