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| author | Ingo Molnar <mingo@kernel.org> | 2014-06-12 13:46:25 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-06-12 13:46:37 +0200 |
| commit | 535560d841b2d54f31280e05e9c6ffd19da0c4e7 (patch) | |
| tree | 5320502c072284813f3d3d42412bd73e26130863 /arch/ia64/include/asm/bitops.h | |
| parent | sched/deadline: Delete extraneous extern for to_ratio() (diff) | |
| parent | rwsem: Add comments to explain the meaning of the rwsem's count field (diff) | |
| download | linux-535560d841b2d54f31280e05e9c6ffd19da0c4e7.tar.xz linux-535560d841b2d54f31280e05e9c6ffd19da0c4e7.zip | |
Merge commit '3cf2f34' into sched/core, to fix build error
Fix this dependency on the locking tree's smp_mb*() API changes:
kernel/sched/idle.c:247:3: error: implicit declaration of function ‘smp_mb__after_atomic’ [-Werror=implicit-function-declaration]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/ia64/include/asm/bitops.h')
| -rw-r--r-- | arch/ia64/include/asm/bitops.h | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/arch/ia64/include/asm/bitops.h b/arch/ia64/include/asm/bitops.h index c27eccd33349..71e8145243ee 100644 --- a/arch/ia64/include/asm/bitops.h +++ b/arch/ia64/include/asm/bitops.h @@ -16,6 +16,7 @@ #include <linux/compiler.h> #include <linux/types.h> #include <asm/intrinsics.h> +#include <asm/barrier.h> /** * set_bit - Atomically set a bit in memory @@ -65,12 +66,6 @@ __set_bit (int nr, volatile void *addr) *((__u32 *) addr + (nr >> 5)) |= (1 << (nr & 31)); } -/* - * clear_bit() has "acquire" semantics. - */ -#define smp_mb__before_clear_bit() smp_mb() -#define smp_mb__after_clear_bit() do { /* skip */; } while (0) - /** * clear_bit - Clears a bit in memory * @nr: Bit to clear @@ -78,7 +73,7 @@ __set_bit (int nr, volatile void *addr) * * clear_bit() is atomic and may not be reordered. However, it does * not contain a memory barrier, so if it is used for locking purposes, - * you should call smp_mb__before_clear_bit() and/or smp_mb__after_clear_bit() + * you should call smp_mb__before_atomic() and/or smp_mb__after_atomic() * in order to ensure changes are visible on other processors. */ static __inline__ void |