#include "pthread_impl.h"

int pthread_mutex_consistent(pthread_mutex_t* m) {
  if (!(m->_m_type & 8))
    return EINVAL;
  if ((m->_m_lock & 0x7fffffff) != __pthread_self()->tid)
    return EPERM;
  m->_m_type &= ~8U;
  return 0;
}