diff options
Diffstat (limited to 'arch/cris/include/asm/bitops.h')
-rw-r--r-- | arch/cris/include/asm/bitops.h | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/arch/cris/include/asm/bitops.h b/arch/cris/include/asm/bitops.h index 053c17b36559..bd49a546f4f5 100644 --- a/arch/cris/include/asm/bitops.h +++ b/arch/cris/include/asm/bitops.h | |||
@@ -21,6 +21,7 @@ | |||
21 | #include <arch/bitops.h> | 21 | #include <arch/bitops.h> |
22 | #include <linux/atomic.h> | 22 | #include <linux/atomic.h> |
23 | #include <linux/compiler.h> | 23 | #include <linux/compiler.h> |
24 | #include <asm/barrier.h> | ||
24 | 25 | ||
25 | /* | 26 | /* |
26 | * set_bit - Atomically set a bit in memory | 27 | * set_bit - Atomically set a bit in memory |
@@ -42,7 +43,7 @@ | |||
42 | * | 43 | * |
43 | * clear_bit() is atomic and may not be reordered. However, it does | 44 | * clear_bit() is atomic and may not be reordered. However, it does |
44 | * not contain a memory barrier, so if it is used for locking purposes, | 45 | * not contain a memory barrier, so if it is used for locking purposes, |
45 | * you should call smp_mb__before_clear_bit() and/or smp_mb__after_clear_bit() | 46 | * you should call smp_mb__before_atomic() and/or smp_mb__after_atomic() |
46 | * in order to ensure changes are visible on other processors. | 47 | * in order to ensure changes are visible on other processors. |
47 | */ | 48 | */ |
48 | 49 | ||
@@ -84,12 +85,6 @@ static inline int test_and_set_bit(int nr, volatile unsigned long *addr) | |||
84 | return retval; | 85 | return retval; |
85 | } | 86 | } |
86 | 87 | ||
87 | /* | ||
88 | * clear_bit() doesn't provide any barrier for the compiler. | ||
89 | */ | ||
90 | #define smp_mb__before_clear_bit() barrier() | ||
91 | #define smp_mb__after_clear_bit() barrier() | ||
92 | |||
93 | /** | 88 | /** |
94 | * test_and_clear_bit - Clear a bit and return its old value | 89 | * test_and_clear_bit - Clear a bit and return its old value |
95 | * @nr: Bit to clear | 90 | * @nr: Bit to clear |