[PATCH rcu 0/7] RCU-related lockdep changes for v6.4

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Hi,

This series enables deadlock detection for srcu_read_lock() vs
synchronize_srcu().

Again, my first time helping prepare PR, so please take a careful look
and yell at me if there is something wrong. Thanks a lot!

You will also be able to find the series at:

	https://github/fbq/linux rcu/lockdep.2023.03.12a

top commit is:

	24390de55773	

List of changes:

Boqun Feng (4):
  locking/lockdep: Introduce lock_sync()
  rcu: Annotate SRCU's update-side lockdep dependencies
  locking: Reduce the number of locks in ww_mutex stress tests
  locking/lockdep: Improve the deadlock scenario print for sync and read
    lock

Paul E. McKenney (3):
  rcutorture: Add SRCU deadlock scenarios
  rcutorture: Add RCU Tasks Trace and SRCU deadlock scenarios
  rcutorture: Add srcu_lockdep.sh

 include/linux/lockdep.h                       |   8 +-
 include/linux/srcu.h                          |  34 +++-
 kernel/locking/lockdep.c                      |  64 +++++-
 kernel/locking/test-ww_mutex.c                |   2 +-
 kernel/rcu/rcutorture.c                       | 185 ++++++++++++++++++
 kernel/rcu/srcutiny.c                         |   2 +
 kernel/rcu/srcutree.c                         |   2 +
 .../selftests/rcutorture/bin/srcu_lockdep.sh  |  73 +++++++
 8 files changed, 359 insertions(+), 11 deletions(-)
 create mode 100755 tools/testing/selftests/rcutorture/bin/srcu_lockdep.sh

-- 
2.39.2




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