diff options
Diffstat (limited to 'include/asm-arm/bitops.h')
| -rw-r--r-- | include/asm-arm/bitops.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/asm-arm/bitops.h b/include/asm-arm/bitops.h index 4edd4dc40c5b..aad7aad026b3 100644 --- a/include/asm-arm/bitops.h +++ b/include/asm-arm/bitops.h | |||
| @@ -21,8 +21,8 @@ | |||
| 21 | 21 | ||
| 22 | #include <asm/system.h> | 22 | #include <asm/system.h> |
| 23 | 23 | ||
| 24 | #define smp_mb__before_clear_bit() do { } while (0) | 24 | #define smp_mb__before_clear_bit() mb() |
| 25 | #define smp_mb__after_clear_bit() do { } while (0) | 25 | #define smp_mb__after_clear_bit() mb() |
| 26 | 26 | ||
| 27 | /* | 27 | /* |
| 28 | * These functions are the basis of our bit ops. | 28 | * These functions are the basis of our bit ops. |
| @@ -229,6 +229,7 @@ extern int _find_next_zero_bit_be(const void * p, int size, int offset); | |||
| 229 | extern int _find_first_bit_be(const unsigned long *p, unsigned size); | 229 | extern int _find_first_bit_be(const unsigned long *p, unsigned size); |
| 230 | extern int _find_next_bit_be(const unsigned long *p, int size, int offset); | 230 | extern int _find_next_bit_be(const unsigned long *p, int size, int offset); |
| 231 | 231 | ||
| 232 | #ifndef CONFIG_SMP | ||
| 232 | /* | 233 | /* |
| 233 | * The __* form of bitops are non-atomic and may be reordered. | 234 | * The __* form of bitops are non-atomic and may be reordered. |
| 234 | */ | 235 | */ |
| @@ -241,6 +242,10 @@ extern int _find_next_bit_be(const unsigned long *p, int size, int offset); | |||
| 241 | (__builtin_constant_p(nr) ? \ | 242 | (__builtin_constant_p(nr) ? \ |
| 242 | ____atomic_##name(nr, p) : \ | 243 | ____atomic_##name(nr, p) : \ |
| 243 | _##name##_be(nr,p)) | 244 | _##name##_be(nr,p)) |
| 245 | #else | ||
| 246 | #define ATOMIC_BITOP_LE(name,nr,p) _##name##_le(nr,p) | ||
| 247 | #define ATOMIC_BITOP_BE(name,nr,p) _##name##_be(nr,p) | ||
| 248 | #endif | ||
| 244 | 249 | ||
| 245 | #define NONATOMIC_BITOP(name,nr,p) \ | 250 | #define NONATOMIC_BITOP(name,nr,p) \ |
| 246 | (____nonatomic_##name(nr, p)) | 251 | (____nonatomic_##name(nr, p)) |
