Messages in this thread | | | From | Yuyang Du <> | Subject | [PATCH v3 00/18] locking/lockdep: Add comments and make some code | Date | Thu, 21 Mar 2019 15:57:07 +0800 |
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Hi Peter,
I recently looked at some system hang issues. While at it, I tried to use and understand lockdep. These patches are made as a result. I believe they should have helped me, so hopefully they do for others as well.
Many thanks to Bart, Joe, and Peter for their valuable comments.
Change from v2: - Removed indent adjustments only patch - Removed unnecessary if to else-if patch - Made changes according to comments - Added another doc addition patch
Change from v1: - Rebased the patch series. - Added more no-functional-change patches. - Removed zapped locks in lock chains printing patch, which was a band-aid. The real problem was recently fixed by Bart.
Thanks, Yuyang
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Yuyang Du (18): locking/lockdep: Change all print_*() return type to void locking/lockdep: Add description and explanation in lockdep design doc locking/lockdep: Adjust lock usage bit character checks locking/lockdep: Remove useless conditional macro locking/lockdep: Print the right depth for chain key colission locking/lockdep: Update obsolete struct field description locking/lockdep: Use lockdep_init_task for task initiation consistently locking/lockdep: Define INITIAL_CHAIN_KEY for chain keys to start with locking/lockdep: Change the range of class_idx in held_lock struct locking/lockdep: Remove unused argument in validate_chain() and check_deadlock() locking/lockdep: Update comment locking/lockdep: Remove unnecessary function pointer argument locking/lockdep: Change type of the element field in circular_queue locking/lockdep: Change the return type of __cq_dequeue() locking/lockdep: Avoid constant checks in __bfs by using offset reference locking/lockdep: Combine check_noncircular and check_redundant locking/lockdep: Update comments on dependency search locking/lockdep: Add explanation to lock usage rules in lockdep design doc
Documentation/locking/lockdep-design.txt | 115 ++++++-- include/linux/lockdep.h | 30 +- init/init_task.c | 2 + kernel/fork.c | 3 - kernel/locking/lockdep.c | 487 +++++++++++++++++-------------- kernel/locking/lockdep_internals.h | 1 + 6 files changed, 378 insertions(+), 260 deletions(-)
-- 1.8.3.1
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