diff options
| 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 /kernel/sched | |
| parent | f602d0632755be4f7eddfdd6c0af13216790177b (diff) | |
| parent | 3cf2f34e1a3d4d5ff209d087925cf950e52f4805 (diff) | |
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 'kernel/sched')
| -rw-r--r-- | kernel/sched/core.c | 16 | ||||
| -rw-r--r-- | kernel/sched/cpupri.c | 6 | ||||
| -rw-r--r-- | kernel/sched/wait.c | 2 |
3 files changed, 20 insertions, 4 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 60d4e05d64dd..54f5722aba79 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -90,6 +90,22 @@ #define CREATE_TRACE_POINTS #include <trace/events/sched.h> +#ifdef smp_mb__before_atomic +void __smp_mb__before_atomic(void) +{ + smp_mb__before_atomic(); +} +EXPORT_SYMBOL(__smp_mb__before_atomic); +#endif + +#ifdef smp_mb__after_atomic +void __smp_mb__after_atomic(void) +{ + smp_mb__after_atomic(); +} +EXPORT_SYMBOL(__smp_mb__after_atomic); +#endif + void start_bandwidth_timer(struct hrtimer *period_timer, ktime_t period) { unsigned long delta; diff --git a/kernel/sched/cpupri.c b/kernel/sched/cpupri.c index 8834243abee2..981fcd7dc394 100644 --- a/kernel/sched/cpupri.c +++ b/kernel/sched/cpupri.c @@ -165,7 +165,7 @@ void cpupri_set(struct cpupri *cp, int cpu, int newpri) * do a write memory barrier, and then update the count, to * make sure the vector is visible when count is set. */ - smp_mb__before_atomic_inc(); + smp_mb__before_atomic(); atomic_inc(&(vec)->count); do_mb = 1; } @@ -185,14 +185,14 @@ void cpupri_set(struct cpupri *cp, int cpu, int newpri) * the new priority vec. */ if (do_mb) - smp_mb__after_atomic_inc(); + smp_mb__after_atomic(); /* * When removing from the vector, we decrement the counter first * do a memory barrier and then clear the mask. */ atomic_dec(&(vec)->count); - smp_mb__after_atomic_inc(); + smp_mb__after_atomic(); cpumask_clear_cpu(cpu, vec->mask); } diff --git a/kernel/sched/wait.c b/kernel/sched/wait.c index 7d50f794e248..0ffa20ae657b 100644 --- a/kernel/sched/wait.c +++ b/kernel/sched/wait.c @@ -394,7 +394,7 @@ EXPORT_SYMBOL(__wake_up_bit); * * In order for this to function properly, as it uses waitqueue_active() * internally, some kind of memory barrier must be done prior to calling - * this. Typically, this will be smp_mb__after_clear_bit(), but in some + * this. Typically, this will be smp_mb__after_atomic(), but in some * cases where bitflags are manipulated non-atomically under a lock, one * may need to use a less regular barrier, such fs/inode.c's smp_mb(), * because spin_unlock() does not guarantee a memory barrier. |