Sebastian Andrzej Siewior fb4a58f519 lockdep: Let lock_is_held_type() detect recursive read as read ... [ Upstream commit 2507003a1d10917c9158077bf6030719d02c941e ] lock_is_held_type(, 1) detects acquired read locks. It only recognized locks acquired with lock_acquire_shared(). Read locks acquired with lock_acquire_shared_recursive() are not recognized because a `2' is stored as the read value. Rework the check to additionally recognise lock's read value one and two as a read held lock. Fixes: e918188611 ("locking: More accurate annotations for read_lock()") Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Boqun Feng <boqun.feng@gmail.com> Acked-by: Waiman Long <longman@redhat.com> Link: https://lkml.kernel.org/r/20210903084001.lblecrvz4esl4mrr@linutronix.de Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-11-18 14:04:02 +01:00
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lock_events_list.h
lock_events.c
lock_events.h
lockdep_internals.h
lockdep_proc.c
lockdep_states.h
lockdep.c	lockdep: Let lock_is_held_type() detect recursive read as read	2021-11-18 14:04:02 +01:00
locktorture.c
Makefile
mcs_spinlock.h
mutex-debug.c
mutex-debug.h
mutex.c
mutex.h
osq_lock.c
percpu-rwsem.c
qrwlock.c
qspinlock_paravirt.h
qspinlock_stat.h
qspinlock.c
rtmutex_common.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex.c
rtmutex.h
rwsem.c
rwsem.h
semaphore.c
spinlock_debug.c
spinlock.c
test-ww_mutex.c