search for: pv_lock_activ

Displaying 4 results from an estimated 4 matches for "pv_lock_activ".

[PATCH 3/6] x86: introduce new pvops function clear_slowpath
2015 Apr 30
0
[PATCH 3/6] x86: introduce new pvops function clear_slowpath
...always_inline void __ticket_unlock_kick(struct arch_spinlock *lock, PVOP_VCALL2(pv_lock_ops.unlock_kick, lock, ticket); } +static __always_inline void __ticket_clear_slowpath(arch_spinlock_t *lock, + __ticket_t head) +{ + PVOP_VCALL2(pv_lock_ops.clear_slowpath, lock, head); +} + +void pv_lock_activate(void); #endif #ifdef CONFIG_X86_32 diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h index f7b0b5c..3432713 100644 --- a/arch/x86/include/asm/paravirt_types.h +++ b/arch/x86/include/asm/paravirt_types.h @@ -336,6 +336,7 @@ typedef u16 __ticket_t; str...
[PATCH 0/6] x86: reduce paravirtualized spinlock overhead
2015 Apr 30
12
[PATCH 0/6] x86: reduce paravirtualized spinlock overhead
Paravirtualized spinlocks produce some overhead even if the kernel is running on bare metal. The main reason are the more complex locking and unlocking functions. Especially unlocking is no longer just one instruction but so complex that it is no longer inlined. This patch series addresses this issue by adding two more pvops functions to reduce the size of the inlined spinlock functions. When
[PATCH 0/6] x86: reduce paravirtualized spinlock overhead
2015 Apr 30
12
[PATCH 0/6] x86: reduce paravirtualized spinlock overhead
Paravirtualized spinlocks produce some overhead even if the kernel is running on bare metal. The main reason are the more complex locking and unlocking functions. Especially unlocking is no longer just one instruction but so complex that it is no longer inlined. This patch series addresses this issue by adding two more pvops functions to reduce the size of the inlined spinlock functions. When
[PATCH 4/6] x86: introduce new pvops function spin_unlock
2015 Apr 30
0
[PATCH 4/6] x86: introduce new pvops function spin_unlock
.../asm/paravirt.h @@ -730,6 +730,11 @@ static __always_inline void __ticket_clear_slowpath(arch_spinlock_t *lock, PVOP_VCALL2(pv_lock_ops.clear_slowpath, lock, head); } +static __always_inline void __ticket_unlock(arch_spinlock_t *lock) +{ + PVOP_VCALL1_LOCK(pv_lock_ops.unlock, lock); +} + void pv_lock_activate(void); #endif @@ -843,6 +848,7 @@ static inline notrace unsigned long arch_local_irq_save(void) #undef PVOP_VCALL0 #undef PVOP_CALL0 #undef PVOP_VCALL1 +#undef PVOP_VCALL1_LOCK #undef PVOP_CALL1 #undef PVOP_VCALL2 #undef PVOP_CALL2 diff --git a/arch/x86/include/asm/paravirt_types.h b/ar...