[PATCH 8/9] x86/paravirt: use percpu_ rather than __get_cpu_var

Jeremy Fitzhardinge
2009-02-18T22:31:46Z

percpu_read/write is a slightly more direct way of getting
to percpu data.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
---
arch/x86/kernel/paravirt.c | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 1a81ce9..0811730 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -247,16 +247,16 @@ static DEFINE_PER_CPU(enum paravirt_lazy_mode, paravirt_lazy_mode) = PARAVIRT_LA

static inline void enter_lazy(enum paravirt_lazy_mode mode)
{
- BUG_ON(__get_cpu_var(paravirt_lazy_mode) != PARAVIRT_LAZY_NONE);
+ BUG_ON(percpu_read(paravirt_lazy_mode) != PARAVIRT_LAZY_NONE);

- __get_cpu_var(paravirt_lazy_mode) = mode;
+ percpu_write(paravirt_lazy_mode, mode);
}

static void leave_lazy(enum paravirt_lazy_mode mode)
{
- BUG_ON(__get_cpu_var(paravirt_lazy_mode) != mode);
+ BUG_ON(percpu_read(paravirt_lazy_mode) != mode);

- __get_cpu_var(paravirt_lazy_mode) = PARAVIRT_LAZY_NONE;
+ percpu_write(paravirt_lazy_mode, PARAVIRT_LAZY_NONE);
}

void paravirt_enter_lazy_mmu(void)
@@ -295,7 +295,7 @@ enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
if (in_interrupt())
return PARAVIRT_LAZY_NONE;

- return __get_cpu_var(paravirt_lazy_mode);
+ return percpu_read(paravirt_lazy_mode);
}

void arch_flush_lazy_mmu_mode(void)
--
1.6.0.6