Ping. Thanks.
On Fri, 28 Jun 2019 at 17:15, Yuyang Du <duyuy...@gmail.com> wrote: > > Hi Peter and Ingo, > > Historically, the recursive-read lock is not well supported in lockdep. > This patchset attempts to solve this problem sound and complete. > > The bulk of the algorithm is in patch #27. Now that the recursive-read > locks are suppported, we have all the 262 cases passed. > > Changes from v2: > > - Handle correctly rwsem locks hopefully. > - Remove indirect dependency redundancy check. > - Check direct dependency redundancy before validation. > - Compose lock chains for those with trylocks or separated by trylocks. > - Map lock dependencies to lock chains. > - Consolidate forward and backward lock_lists. > - Clearly and formally define two-task model for lockdep. > > Have a good weekend ;) > > Thanks, > Yuyang > > -- > > Yuyang Du (30): > locking/lockdep: Rename deadlock check functions > locking/lockdep: Change return type of add_chain_cache() > locking/lockdep: Change return type of lookup_chain_cache_add() > locking/lockdep: Pass lock chain from validate_chain() to > check_prev_add() > locking/lockdep: Add lock chain list_head field in struct lock_list > and lock_chain > locking/lockdep: Update comments in struct lock_list and held_lock > locking/lockdep: Remove indirect dependency redundancy check > locking/lockdep: Skip checks if direct dependency is already present > locking/lockdep: Remove chain_head argument in validate_chain() > locking/lockdep: Remove useless lock type assignment > locking/lockdep: Specify the depth of current lock stack in > lookup_chain_cache_add() > locking/lockdep: Treat every lock dependency as in a new lock chain > locking/lockdep: Combine lock_lists in struct lock_class into an array > locking/lockdep: Consolidate forward and backward lock_lists into one > locking/lockdep: Add lock chains to direct lock dependency graph > locking/lockdep: Use lock type enum to explicitly specify read or > write locks > locking/lockdep: Add read-write type for a lock dependency > locking/lockdep: Add helper functions to operate on the searched path > locking/lockdep: Update direct dependency's read-write type if it > exists > locking/lockdep: Introduce chain_hlocks_type for held lock's > read-write type > locking/lockdep: Hash held lock's read-write type into chain key > locking/lockdep: Adjust BFS algorithm to support multiple matches > locking/lockdep: Define the two task model for lockdep checks formally > locking/lockdep: Introduce mark_lock_unaccessed() > locking/lockdep: Add nest lock type > locking/lockdep: Add lock exclusiveness table > locking/lockdep: Support read-write lock's deadlock detection > locking/lockdep: Adjust selftest case for recursive read lock > locking/lockdep: Add more lockdep selftest cases > locking/lockdep: Remove irq-safe to irq-unsafe read check > > include/linux/lockdep.h | 91 ++- > include/linux/rcupdate.h | 2 +- > kernel/locking/lockdep.c | 1221 > ++++++++++++++++++++++++------------ > kernel/locking/lockdep_internals.h | 3 +- > kernel/locking/lockdep_proc.c | 8 +- > lib/locking-selftest.c | 1109 +++++++++++++++++++++++++++++++- > 6 files changed, 1975 insertions(+), 459 deletions(-) > > -- > 1.8.3.1 >
