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| author | Olof Johansson <olof@lixom.net> | 2015-11-09 16:35:19 -0800 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2015-11-09 16:35:19 -0800 |
| commit | 3e4dda70cc989a4f8079541972942609229e9f55 (patch) | |
| tree | 0342db762349057fd2e1efb621ba265df187f1dc /kernel/sched/sched.h | |
| parent | 1b38b0e3349d733679e91b029a7f0dfd9e16a169 (diff) | |
| parent | 8713181dced9b2d0c2a99613449b9e45b656df83 (diff) | |
| download | linux-3e4dda70cc989a4f8079541972942609229e9f55.tar.bz2 | |
Merge branch 'next/arm64' into next/dt
Merging in the few patches I had kept separate from main next/dt, since others
got merged here directly.
* next/arm64:
arm64: defconfig: Enable PCI generic host bridge by default
arm64: Juno: Add support for the PCIe host bridge on Juno R1
Documentation: of: Document the bindings used by Juno R1 PCIe host bridge
arm64: dts: mt8173: Add clocks for SCPSYS unit
arm64: dts: mt8173: Add subsystem clock controller device nodes
+ Linux 4.3-rc5
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 */ |