forked from Minki/linux
c68a2aab33
By adding __set_bit and __clear_bit to the tools include directory, we can share the bitops code. This reveals an include loop between kernel.h, log2.h, bitmap.h and bitops.h. Break it the same way as the kernel does; by moving the kernel.h include from bitops.h to bitmap.h. Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
27 lines
742 B
C
27 lines
742 B
C
#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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#define __set_bit(nr, addr) set_bit(nr, addr)
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#define __clear_bit(nr, addr) clear_bit(nr, addr)
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#endif /* _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_ */
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