LXR linux/tools/include/linux/spinlock.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __LINUX_SPINLOCK_H_
   3#define __LINUX_SPINLOCK_H_
   4
   5#include <pthread.h>
   6#include <stdbool.h>
   7
   8#define spinlock_t              pthread_mutex_t
   9#define DEFINE_SPINLOCK(x)      pthread_mutex_t x = PTHREAD_MUTEX_INITIALIZER;
  10
  11#define spin_lock_irqsave(x, f)         (void)f, pthread_mutex_lock(x)
  12#define spin_unlock_irqrestore(x, f)    (void)f, pthread_mutex_unlock(x)
  13
  14#define arch_spinlock_t pthread_mutex_t
  15#define __ARCH_SPIN_LOCK_UNLOCKED PTHREAD_MUTEX_INITIALIZER
  16
  17static inline void arch_spin_lock(arch_spinlock_t *mutex)
  18{
  19        pthread_mutex_lock(mutex);
  20}
  21
  22static inline void arch_spin_unlock(arch_spinlock_t *mutex)
  23{
  24        pthread_mutex_unlock(mutex);
  25}
  26
  27static inline bool arch_spin_is_locked(arch_spinlock_t *mutex)
  28{
  29        return true;
  30}
  31
  32#endif
  33