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| author | Ingo Molnar <mingo@kernel.org> | 2014-06-12 15:46:25 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-06-12 15:46:37 +0400 |
| commit | 535560d841b2d54f31280e05e9c6ffd19da0c4e7 (patch) | |
| tree | 5320502c072284813f3d3d42412bd73e26130863 /arch/x86/include/asm/barrier.h | |
| parent | f602d0632755be4f7eddfdd6c0af13216790177b (diff) | |
| parent | 3cf2f34e1a3d4d5ff209d087925cf950e52f4805 (diff) | |
| download | linux-535560d841b2d54f31280e05e9c6ffd19da0c4e7.tar.xz | |
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/x86/include/asm/barrier.h')
| -rw-r--r-- | arch/x86/include/asm/barrier.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/include/asm/barrier.h b/arch/x86/include/asm/barrier.h index 69bbb4845020..5c7198cca5ed 100644 --- a/arch/x86/include/asm/barrier.h +++ b/arch/x86/include/asm/barrier.h @@ -137,6 +137,10 @@ do { \ #endif +/* Atomic operations are already serializing on x86 */ +#define smp_mb__before_atomic() barrier() +#define smp_mb__after_atomic() barrier() + /* * Stop RDTSC speculation. This is needed when you need to use RDTSC * (or get_cycles or vread that possibly accesses the TSC) in a defined |