Sebastian Andrzej Siewior 6c11c6e3d5 locking/mutex: Test for initialized mutex ...

An uninitialized/ zeroed mutex will go unnoticed because there is no
check for it. There is a magic check in the unlock's slowpath path which
might go unnoticed if the unlock happens in the fastpath.

Add a ->magic check early in the mutex_lock() and mutex_trylock() path.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190703092125.lsdf4gpsh2plhavb@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2019-07-25 15:39:27 +02:00

..

lock_events_list.h

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lock_events.c

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lock_events.h

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lockdep_internals.h

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lockdep_proc.c

locking/lockdep: Hide unused 'class' variable

2019-07-25 15:39:25 +02:00

lockdep_states.h

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lockdep.c

locking/lockdep: Clean up #ifdef checks

2019-07-25 15:39:26 +02:00

locktorture.c

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Makefile

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mcs_spinlock.h

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mutex-debug.c

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mutex-debug.h

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mutex.c

locking/mutex: Test for initialized mutex

2019-07-25 15:39:27 +02:00

mutex.h

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osq_lock.c

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percpu-rwsem.c

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qrwlock.c

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qspinlock_paravirt.h

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qspinlock_stat.h

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qspinlock.c

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rtmutex_common.h

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rtmutex-debug.c

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rtmutex-debug.h

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rtmutex.c

docs: locking: convert docs to ReST and rename to *.rst

2019-07-15 08:53:27 -03:00

rtmutex.h

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rwsem.c

locking/rwsem: Add ACQUIRE comments

2019-07-25 15:39:25 +02:00

rwsem.h

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semaphore.c

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spinlock_debug.c

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spinlock.c

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test-ww_mutex.c

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