Sebastian Andrzej Siewior 9a75bd0c52 lockdep/selftests: Adapt ww-tests for PREEMPT_RT
The ww-mutex selftest operates directly on ww_mutex::base and assumes
its type is struct mutex. This isn't true on PREEMPT_RT which turns the
mutex into a rtmutex.

Add a ww_mutex_base_ abstraction which maps to the relevant mutex_ or
rt_mutex_ function.
Change the CONFIG_DEBUG_MUTEXES ifdef to DEBUG_WW_MUTEXES. The latter is
true for the MUTEX and RTMUTEX implementation of WW-MUTEX. The
assignment is required in order to pass the tests.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20211129174654.668506-10-bigeasy@linutronix.de
2021-12-04 10:56:24 +01:00
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