1 #ifndef _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_ 2 #define _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_ 3 4 #include <asm/types.h> 5 #include <asm/bitsperlong.h> 6 set_bit(int nr,unsigned long * addr)7static inline void set_bit(int nr, unsigned long *addr) 8 { 9 addr[nr / __BITS_PER_LONG] |= 1UL << (nr % __BITS_PER_LONG); 10 } 11 clear_bit(int nr,unsigned long * addr)12static inline void clear_bit(int nr, unsigned long *addr) 13 { 14 addr[nr / __BITS_PER_LONG] &= ~(1UL << (nr % __BITS_PER_LONG)); 15 } 16 test_bit(unsigned int nr,const unsigned long * addr)17static __always_inline int test_bit(unsigned int nr, const unsigned long *addr) 18 { 19 return ((1UL << (nr % __BITS_PER_LONG)) & 20 (((unsigned long *)addr)[nr / __BITS_PER_LONG])) != 0; 21 } 22 23 #endif /* _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_ */ 24