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...; --- > arch/powerpc/include/asm/spinlock.h | 4 +++ > arch/powerpc/lib/locks.c | 59 +++++++++++++++++++++++++++++++++++++ > 2 files changed, 63 insertions(+) > > diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h > index 954099e..6426bd5 100644 > --- a/arch/powerpc/include/asm/spinlock.h > +++ b/arch/powerpc/include/asm/spinlock.h > @@ -64,9 +64,13 @@ static inline bool vcpu_is_preempted(int cpu) > /* We only yield to the hypervisor if we are in shared processor mode */ > #define SHARED_PROCESSOR (lppaca_shared_pro...

...; --- > arch/powerpc/include/asm/spinlock.h | 4 +++ > arch/powerpc/lib/locks.c | 59 +++++++++++++++++++++++++++++++++++++ > 2 files changed, 63 insertions(+) > > diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h > index 954099e..6426bd5 100644 > --- a/arch/powerpc/include/asm/spinlock.h > +++ b/arch/powerpc/include/asm/spinlock.h > @@ -64,9 +64,13 @@ static inline bool vcpu_is_preempted(int cpu) > /* We only yield to the hypervisor if we are in shared processor mode */ > #define SHARED_PROCESSOR (lppaca_shared_pro...

...i.pan at linux.vnet.ibm.com> --- arch/powerpc/include/asm/spinlock.h | 4 +++ arch/powerpc/lib/locks.c | 59 +++++++++++++++++++++++++++++++++++++ 2 files changed, 63 insertions(+) diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h index 954099e..6426bd5 100644 --- a/arch/powerpc/include/asm/spinlock.h +++ b/arch/powerpc/include/asm/spinlock.h @@ -64,9 +64,13 @@ static inline bool vcpu_is_preempted(int cpu) /* We only yield to the hypervisor if we are in shared processor mode */ #define SHARED_PROCESSOR (lppaca_shared_proc(local_paca->lppaca_p...

Hi All, this is the fairlock patchset. You can apply them and build successfully. patches are based on linux-next qspinlock can avoid waiter starved issue. It has about the same speed in single-thread and it can be much faster in high contention situations especially when the spinlock is embedded within the data structure to be protected. v7 -> v8: add one patch to drop a function call

Hi All, this is the fairlock patchset. You can apply them and build successfully. patches are based on linux-next qspinlock can avoid waiter starved issue. It has about the same speed in single-thread and it can be much faster in high contention situations especially when the spinlock is embedded within the data structure to be protected. v7 -> v8: add one patch to drop a function call

Hi All, this is the fairlock patchset. You can apply them and build successfully. patches are based on linux-next qspinlock can avoid waiter starved issue. It has about the same speed in single-thread and it can be much faster in high contention situations especially when the spinlock is embedded within the data structure to be protected. v8 -> v9: mv qspinlocm config entry to

Hi All, this is the fairlock patchset. You can apply them and build successfully. patches are based on linux-next qspinlock can avoid waiter starved issue. It has about the same speed in single-thread and it can be much faster in high contention situations especially when the spinlock is embedded within the data structure to be protected. v8 -> v9: mv qspinlocm config entry to