search for: 318f077

...6/kernel/kvm.c | 2 ++ arch/x86/kernel/paravirt-spinlocks.c | 22 ++++++++++++++++++++++ arch/x86/xen/spinlock.c | 2 ++ 6 files changed, 38 insertions(+), 14 deletions(-) diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h index 8957810..318f077 100644 --- a/arch/x86/include/asm/paravirt.h +++ b/arch/x86/include/asm/paravirt.h @@ -724,6 +724,13 @@ static __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_s...

...| 12 ++++++++++++ arch/x86/kernel/paravirt_patch_32.c | 25 +++++++++++++++++++++++++ arch/x86/kernel/paravirt_patch_64.c | 24 ++++++++++++++++++++++++ 7 files changed, 104 insertions(+), 14 deletions(-) diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h index 318f077..2f39129 100644 --- a/arch/x86/include/asm/paravirt.h +++ b/arch/x86/include/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_s...

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

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