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

["Thomas Hellström" <thomas.hellstrom@linux.intel.com>]

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(-)

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2.51.1