5634bd7d2a
kernel/locking/lockdep.c deals with validating locking scenarios for various architectures supported by the kernel. There isn't anything kernel specific going on in lockdep, and when we compare userspace to other architectures that don't have to deal with irqs such as s390, they become all too similar. We wrap kernel/locking/lockdep.c and include/linux/lockdep.h with several headers which allow us to build and use lockdep from userspace. We don't touch the kernel code itself which means that any work done on lockdep in the kernel will automatically benefit userspace lockdep as well! Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: torvalds@linux-foundation.org Link: http://lkml.kernel.org/r/1371163284-6346-3-git-send-email-sasha.levin@oracle.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
26 lines
484 B
C
26 lines
484 B
C
#ifndef _LIBLOCKDEP_SPINLOCK_H_
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#define _LIBLOCKDEP_SPINLOCK_H_
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#include <pthread.h>
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#include <stdbool.h>
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#define arch_spinlock_t pthread_mutex_t
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#define __ARCH_SPIN_LOCK_UNLOCKED PTHREAD_MUTEX_INITIALIZER
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static inline void arch_spin_lock(arch_spinlock_t *mutex)
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{
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pthread_mutex_lock(mutex);
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}
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static inline void arch_spin_unlock(arch_spinlock_t *mutex)
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{
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pthread_mutex_unlock(mutex);
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}
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static inline bool arch_spin_is_locked(arch_spinlock_t *mutex)
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{
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return true;
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}
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#endif
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