search for: fc39389f196b

Displaying 5 results from an estimated 5 matches for "fc39389f196b".

[PATCH v2 0/2] guard virt_spin_lock() with a static key
2017 Sep 06
4
[PATCH v2 0/2] guard virt_spin_lock() with a static key
With virt_spin_lock() being guarded by a static key the bare metal case can be optimized by patching the call away completely. In case a kernel running as a guest it can decide whether to use paravitualized spinlocks, the current fallback to the unfair test-and-set scheme, or to mimic the bare metal behavior. V2: - use static key instead of making virt_spin_lock() a pvops function Juergen Gross
[PATCH v2 0/2] guard virt_spin_lock() with a static key
2017 Sep 06
4
[PATCH v2 0/2] guard virt_spin_lock() with a static key
With virt_spin_lock() being guarded by a static key the bare metal case can be optimized by patching the call away completely. In case a kernel running as a guest it can decide whether to use paravitualized spinlocks, the current fallback to the unfair test-and-set scheme, or to mimic the bare metal behavior. V2: - use static key instead of making virt_spin_lock() a pvops function Juergen Gross
[PATCH v2 1/2] paravirt/locks: use new static key for controlling call of virt_spin_lock()
2017 Sep 06
0
[PATCH v2 1/2] paravirt/locks: use new static key for controlling call of virt_spin_lock()
...| 11 +++++++++++ arch/x86/kernel/paravirt-spinlocks.c | 6 ++++++ arch/x86/kernel/smpboot.c | 2 ++ kernel/locking/qspinlock.c | 4 ++++ 4 files changed, 23 insertions(+) diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h index 48a706f641f2..fc39389f196b 100644 --- a/arch/x86/include/asm/qspinlock.h +++ b/arch/x86/include/asm/qspinlock.h @@ -1,6 +1,7 @@ #ifndef _ASM_X86_QSPINLOCK_H #define _ASM_X86_QSPINLOCK_H +#include <linux/jump_label.h> #include <asm/cpufeature.h> #include <asm-generic/qspinlock_types.h> #include <as...
[PATCH v2 1/2] paravirt/locks: use new static key for controlling call of virt_spin_lock()
2017 Sep 06
2
[PATCH v2 1/2] paravirt/locks: use new static key for controlling call of virt_spin_lock()
...kernel/paravirt-spinlocks.c | 6 ++++++ > arch/x86/kernel/smpboot.c | 2 ++ > kernel/locking/qspinlock.c | 4 ++++ > 4 files changed, 23 insertions(+) > > diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h > index 48a706f641f2..fc39389f196b 100644 > --- a/arch/x86/include/asm/qspinlock.h > +++ b/arch/x86/include/asm/qspinlock.h > @@ -1,6 +1,7 @@ > #ifndef _ASM_X86_QSPINLOCK_H > #define _ASM_X86_QSPINLOCK_H > > +#include <linux/jump_label.h> > #include <asm/cpufeature.h> > #include <asm-g...
[PATCH v2 1/2] paravirt/locks: use new static key for controlling call of virt_spin_lock()
2017 Sep 06
2
[PATCH v2 1/2] paravirt/locks: use new static key for controlling call of virt_spin_lock()
...kernel/paravirt-spinlocks.c | 6 ++++++ > arch/x86/kernel/smpboot.c | 2 ++ > kernel/locking/qspinlock.c | 4 ++++ > 4 files changed, 23 insertions(+) > > diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h > index 48a706f641f2..fc39389f196b 100644 > --- a/arch/x86/include/asm/qspinlock.h > +++ b/arch/x86/include/asm/qspinlock.h > @@ -1,6 +1,7 @@ > #ifndef _ASM_X86_QSPINLOCK_H > #define _ASM_X86_QSPINLOCK_H > > +#include <linux/jump_label.h> > #include <asm/cpufeature.h> > #include <asm-g...