Hi Ingo, As you may know some false positive lockdep reports are the result of the requirement to associate the same static lockdep key with all instances of a locking object. Recently I encountered a lockdep false positive for which I found no elegant way to suppress it other than by modifying the lockdep implementation. Hence this series with two patches: one that modifies lockdep and another patch that shows the false positive I and others ran into and that also shows how to suppress that false positive.
Please keep in mind that I'm not a lockdep expert and hence that I'm not sure whether the approach of patch 1/2 is correct. Thanks, Bart. Bart Van Assche (2): locking/lockdep: Add support for dynamic depmaps and keys kernel/workqueue: Use dynamic lockdep keys for workqueues include/linux/lockdep.h | 2 ++ include/linux/workqueue.h | 28 ++++------------------- kernel/locking/lockdep.c | 16 ++++++++++--- kernel/workqueue.c | 48 ++++++++++++++++++++++++++++++++------- 4 files changed, 59 insertions(+), 35 deletions(-) -- 2.19.1.930.g4563a0d9d0-goog
