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#ifndef __BITOPS__
#define __BITOPS__

#include <linux/compatib.h>

#define LOCK_PREFIX ""
#define SMPVOL

/*
 * Some hacks to defeat gcc over-optimizations..
 */
struct __dummy { unsigned long a[100]; };
#define ADDR (*(struct __dummy *) addr)
#define CONST_ADDR (*(const struct __dummy *) addr)

extern __inline__ int set_bit(int nr, SMPVOL void * addr)
{
        int oldbit;

        __asm__ __volatile__(LOCK_PREFIX
                "btsl %2,%1\n\tsbbl %0,%0"
                :"=r" (oldbit),"=m" (ADDR)
                :"ir" (nr));
        return oldbit;
}

extern __inline__ int clear_bit(int nr, SMPVOL void * addr)
{
        int oldbit;

        __asm__ __volatile__(LOCK_PREFIX
                "btrl %2,%1\n\tsbbl %0,%0"
                :"=r" (oldbit),"=m" (ADDR)
                :"ir" (nr));
        return oldbit;
}

extern __inline__ int test_bit(int nr, const SMPVOL void * addr)
{
        return ((1UL << (nr & 31)) & (((const unsigned int *) addr)[nr >> 5])) != 0;
}

#endif