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| author | Takashi Iwai <tiwai@suse.de> | 2015-10-23 07:57:50 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-10-23 07:57:50 +0300 |
| commit | 274035751e25ee15a064e43cde7b4e7a9b75d921 (patch) | |
| tree | bf5f3f18f14855043324ef02a116532d866e3dac /kernel/sched/sched.h | |
| parent | 53e597b1d194910bef53ed0632da329fef497904 (diff) | |
| parent | a5be88f63eaff1c03774aecd7388015cb87f6b2c (diff) | |
| download | linux-274035751e25ee15a064e43cde7b4e7a9b75d921.tar.xz | |
Merge branch 'topic/hw-constraint-single' into for-next
Diffstat (limited to 'kernel/sched/sched.h')
| -rw-r--r-- | kernel/sched/sched.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 68cda117574c..6d2a119c7ad9 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1078,9 +1078,10 @@ static inline void finish_lock_switch(struct rq *rq, struct task_struct *prev) * After ->on_cpu is cleared, the task can be moved to a different CPU. * We must ensure this doesn't happen until the switch is completely * finished. + * + * Pairs with the control dependency and rmb in try_to_wake_up(). */ - smp_wmb(); - prev->on_cpu = 0; + smp_store_release(&prev->on_cpu, 0); #endif #ifdef CONFIG_DEBUG_SPINLOCK /* this is a valid case when another task releases the spinlock */ |