Re: [PATCH rcu v2 0/7] RCU-related lockdep changes for v6.4

[Peter Zijlstra]

On Wed, Mar 22, 2023 at 09:26:07PM -0700, Boqun Feng wrote:
> 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  |  78 ++++++++
>  8 files changed, 364 insertions(+), 11 deletions(-)
>  create mode 100755 tools/testing/selftests/rcutorture/bin/srcu_lockdep.sh

Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>