24 lines
645 B
C
24 lines
645 B
C
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#ifndef _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_
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#define _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_
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#include <asm/types.h>
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#include <asm/bitsperlong.h>
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static inline void set_bit(int nr, unsigned long *addr)
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{
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addr[nr / __BITS_PER_LONG] |= 1UL << (nr % __BITS_PER_LONG);
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}
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static inline void clear_bit(int nr, unsigned long *addr)
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{
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addr[nr / __BITS_PER_LONG] &= ~(1UL << (nr % __BITS_PER_LONG));
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}
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static __always_inline int test_bit(unsigned int nr, const unsigned long *addr)
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{
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return ((1UL << (nr % __BITS_PER_LONG)) &
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(((unsigned long *)addr)[nr / __BITS_PER_LONG])) != 0;
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}
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#endif /* _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_ */
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