[PATCH 0/4] mmu notifier debug annotations/checks

From: Daniel Vetter
Date: Tue Aug 20 2019 - 04:19:12 EST


Hi all,

Here's the respin. Changes:

- 2 patches for checking return values of callbacks dropped, they landed

- move the lockdep annotations ahead, since I think that part is less
contentious. lockdep map now also annotates invalidate_range_end, as
requested by Jason.

- add a patch to prime lockdep, idea from Jason, let's hear whether the
implementation fits.

- I've stuck with the non_block_start/end for now and not switched back to
preempt_disable/enable, but with comments as suggested by Andrew.
Hopefully that fits the bill, otherwise I can go back again if the
consensus is more there.

Review, comments and ideas very much welcome.

Cheers, Daniel

Daniel Vetter (4):
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

include/linux/kernel.h | 25 ++++++++++++++++++++++++-
include/linux/mmu_notifier.h | 8 ++++++++
include/linux/sched.h | 4 ++++
kernel/sched/core.c | 19 ++++++++++++++-----
mm/mmu_notifier.c | 24 +++++++++++++++++++++++-
5 files changed, 73 insertions(+), 7 deletions(-)

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2.23.0.rc1