[Linaro-mm-sig] [RFC PATCH 0/2] locking/ww_mutex, dma-buf/dma-resv: Improve detection of unheld locks

WW mutexes and dma-resv objects, which embed them, typically have a number of locks belocking to the same lock class. However code using them typically want to verify the locking on object granularity, not lock-class granularity.

This series add ww_mutex functions to facilitate that, (patch 1) and utilizes these functions in the dma-resv lock checks.

Thomas Hellström (2): kernel/locking/ww_mutex: Add per-lock lock-check helpers dma-buf/dma-resv: Improve the dma-resv lockdep checks

include/linux/dma-resv.h | 7 +++++-- include/linux/ww_mutex.h | 18 ++++++++++++++++++ kernel/locking/mutex.c | 10 ++++++++++ 3 files changed, 33 insertions(+), 2 deletions(-)