diff options
| -rw-r--r-- | arch/x86/include/asm/qspinlock.h | 17 | ||||
| -rw-r--r-- | include/asm-generic/qspinlock.h | 2 |
2 files changed, 7 insertions, 12 deletions
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h index da1370ad206d..3e70bed8a978 100644 --- a/arch/x86/include/asm/qspinlock.h +++ b/arch/x86/include/asm/qspinlock.h @@ -9,6 +9,12 @@ #define _Q_PENDING_LOOPS (1 << 9) +#ifdef CONFIG_PARAVIRT_SPINLOCKS +extern void native_queued_spin_lock_slowpath(struct qspinlock *lock, u32 val); +extern void __pv_init_lock_hash(void); +extern void __pv_queued_spin_lock_slowpath(struct qspinlock *lock, u32 val); +extern void __raw_callee_save___pv_queued_spin_unlock(struct qspinlock *lock); + #define queued_spin_unlock queued_spin_unlock /** * queued_spin_unlock - release a queued spinlock @@ -21,12 +27,6 @@ static inline void native_queued_spin_unlock(struct qspinlock *lock) smp_store_release(&lock->locked, 0); } -#ifdef CONFIG_PARAVIRT_SPINLOCKS -extern void native_queued_spin_lock_slowpath(struct qspinlock *lock, u32 val); -extern void __pv_init_lock_hash(void); -extern void __pv_queued_spin_lock_slowpath(struct qspinlock *lock, u32 val); -extern void __raw_callee_save___pv_queued_spin_unlock(struct qspinlock *lock); - static inline void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val) { pv_queued_spin_lock_slowpath(lock, val); @@ -42,11 +42,6 @@ static inline bool vcpu_is_preempted(long cpu) { return pv_vcpu_is_preempted(cpu); } -#else -static inline void queued_spin_unlock(struct qspinlock *lock) -{ - native_queued_spin_unlock(lock); -} #endif #ifdef CONFIG_PARAVIRT diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h index b37b4ad7eb94..a8ed0a352d75 100644 --- a/include/asm-generic/qspinlock.h +++ b/include/asm-generic/qspinlock.h @@ -100,7 +100,7 @@ static __always_inline void queued_spin_unlock(struct qspinlock *lock) /* * unlock() needs release semantics: */ - (void)atomic_sub_return_release(_Q_LOCKED_VAL, &lock->val); + smp_store_release(&lock->locked, 0); } #endif |