smp_lock.h

linux得一些常用命令,以及linux环境下的c编程

#ifndef __LINUX_SMPLOCK_H
#define __LINUX_SMPLOCK_H

#include <linux/config.h>

#if !defined(CONFIG_SMP) && !defined(CONFIG_PREEMPT)

#define lock_kernel()				do { } while(0)
#define unlock_kernel()				do { } while(0)
#define release_kernel_lock(task, cpu)		do { } while(0)
#define reacquire_kernel_lock(task)		do { } while(0)
#define kernel_locked() 1

#else

#include <asm/smplock.h>

#endif /* CONFIG_SMP */

#endif