diff options
| -rw-r--r-- | fs/ubifs/ubifs.h | 32 | ||||
| -rw-r--r-- | include/asm-arm/bitops.h | 2 | ||||
| -rw-r--r-- | include/asm-blackfin/bitops.h | 1 | ||||
| -rw-r--r-- | include/asm-microblaze/bitops.h | 1 | ||||
| -rw-r--r-- | include/asm-mips/bitops.h | 1 | ||||
| -rw-r--r-- | include/linux/bitops.h | 38 | 
6 files changed, 43 insertions, 32 deletions
| diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index 43865aa66..06772af36 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -449,38 +449,6 @@ static inline ino_t parent_ino(struct dentry *dentry)  	return res;  } -/* linux/include/linux/bitops.h */ - -#define BIT_MASK(nr)		(1UL << ((nr) % BITS_PER_LONG)) -#define BIT_WORD(nr)		((nr) / BITS_PER_LONG) - -/* linux/include/asm-generic/bitops/non-atomic.h */ - -/** - * __set_bit - Set a bit in memory - * @nr: the bit to set - * @addr: the address to start counting from - * - * Unlike set_bit(), this function is non-atomic and may be reordered. - * If it's called on the same region of memory simultaneously, the effect - * may be that only one operation succeeds. - */ -static inline void __set_bit(int nr, volatile unsigned long *addr) -{ -	unsigned long mask = BIT_MASK(nr); -	unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr); - -	*p  |= mask; -} - -static inline void __clear_bit(int nr, volatile unsigned long *addr) -{ -	unsigned long mask = BIT_MASK(nr); -	unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr); - -	*p &= ~mask; -} -  /* debug.c */  #define DEFINE_SPINLOCK(...) diff --git a/include/asm-arm/bitops.h b/include/asm-arm/bitops.h index 4b8bab283..1549da169 100644 --- a/include/asm-arm/bitops.h +++ b/include/asm-arm/bitops.h @@ -29,6 +29,7 @@ static inline void __set_bit(int nr, volatile void *addr)  {  	((unsigned char *) addr)[nr >> 3] |= (1U << (nr & 7));  } +#define __set_bit  extern void clear_bit(int nr, volatile void * addr); @@ -36,6 +37,7 @@ static inline void __clear_bit(int nr, volatile void *addr)  {  	((unsigned char *) addr)[nr >> 3] &= ~(1U << (nr & 7));  } +#define __clear_bit  extern void change_bit(int nr, volatile void * addr); diff --git a/include/asm-blackfin/bitops.h b/include/asm-blackfin/bitops.h index 2e55b6a61..cc3685d35 100644 --- a/include/asm-blackfin/bitops.h +++ b/include/asm-blackfin/bitops.h @@ -79,6 +79,7 @@ static __inline__ void __set_bit(int nr, volatile void *addr)  	mask = 1 << (nr & 0x1f);  	*a |= mask;  } +#define __set_bit  /*   * clear_bit() doesn't provide any barrier for the compiler. diff --git a/include/asm-microblaze/bitops.h b/include/asm-microblaze/bitops.h index 04ea0207e..aac906102 100644 --- a/include/asm-microblaze/bitops.h +++ b/include/asm-microblaze/bitops.h @@ -75,6 +75,7 @@ extern __inline__ void __set_bit(int nr, volatile void * addr)  	mask = 1 << (nr & 0x1f);  	*a |= mask;  } +#define __set_bit  /*   * clear_bit() doesn't provide any barrier for the compiler. diff --git a/include/asm-mips/bitops.h b/include/asm-mips/bitops.h index 659ac9d32..0c07b686a 100644 --- a/include/asm-mips/bitops.h +++ b/include/asm-mips/bitops.h @@ -90,6 +90,7 @@ static __inline__ void __set_bit(int nr, volatile void * addr)  	*m |= 1UL << (nr & 31);  } +#define __set_bit  /*   * clear_bit - Clears a bit in memory diff --git a/include/linux/bitops.h b/include/linux/bitops.h index 7d41ae62c..387a81813 100644 --- a/include/linux/bitops.h +++ b/include/linux/bitops.h @@ -1,6 +1,7 @@  #ifndef _LINUX_BITOPS_H  #define _LINUX_BITOPS_H +#include <asm/types.h>  /*   * ffs: find first bit set. This is defined the same way as @@ -66,7 +67,44 @@ static inline unsigned int generic_hweight8(unsigned int w)  	return (res & 0x0F) + ((res >> 4) & 0x0F);  } +#define BIT_MASK(nr)		(1UL << ((nr) % BITS_PER_LONG)) +#define BIT_WORD(nr)		((nr) / BITS_PER_LONG) +  #include <asm/bitops.h> +/* linux/include/asm-generic/bitops/non-atomic.h */ + +#ifndef __set_bit +# define __set_bit generic_set_bit +#endif + +#ifndef __clear_bit +# define __clear_bit generic_clear_bit +#endif + +/** + * __set_bit - Set a bit in memory + * @nr: the bit to set + * @addr: the address to start counting from + * + * Unlike set_bit(), this function is non-atomic and may be reordered. + * If it's called on the same region of memory simultaneously, the effect + * may be that only one operation succeeds. + */ +static inline void generic_set_bit(int nr, volatile unsigned long *addr) +{ +	unsigned long mask = BIT_MASK(nr); +	unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr); + +	*p  |= mask; +} + +static inline void generic_clear_bit(int nr, volatile unsigned long *addr) +{ +	unsigned long mask = BIT_MASK(nr); +	unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr); + +	*p &= ~mask; +}  #endif |