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authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-07 20:02:58 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-07 20:02:58 -0500
commit72eb6a791459c87a0340318840bb3bd9252b627b (patch)
tree3bfb8ad99f9c7e511f37f72d57b56a2cea06d753 /arch/x86/kvm/x86.c
parent23d69b09b78c4876e134f104a3814c30747c53f1 (diff)
parent55ee4ef30241a62b700f79517e6d5ef2ddbefa67 (diff)
Merge branch 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
* 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (30 commits) gameport: use this_cpu_read instead of lookup x86: udelay: Use this_cpu_read to avoid address calculation x86: Use this_cpu_inc_return for nmi counter x86: Replace uses of current_cpu_data with this_cpu ops x86: Use this_cpu_ops to optimize code vmstat: User per cpu atomics to avoid interrupt disable / enable irq_work: Use per cpu atomics instead of regular atomics cpuops: Use cmpxchg for xchg to avoid lock semantics x86: this_cpu_cmpxchg and this_cpu_xchg operations percpu: Generic this_cpu_cmpxchg() and this_cpu_xchg support percpu,x86: relocate this_cpu_add_return() and friends connector: Use this_cpu operations xen: Use this_cpu_inc_return taskstats: Use this_cpu_ops random: Use this_cpu_inc_return fs: Use this_cpu_inc_return in buffer.c highmem: Use this_cpu_xx_return() operations vmstat: Use this_cpu_inc_return for vm statistics x86: Support for this_cpu_add, sub, dec, inc_return percpu: Generic support for this_cpu_add, sub, dec, inc_return ... Fixed up conflicts: in arch/x86/kernel/{apic/nmi.c, apic/x2apic_uv_x.c, process.c} as per Tejun.
Diffstat (limited to 'arch/x86/kvm/x86.c')
-rw-r--r--arch/x86/kvm/x86.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index b989e1f1e5d3..46a368cb651e 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -976,7 +976,7 @@ static inline u64 nsec_to_cycles(u64 nsec)
976 if (kvm_tsc_changes_freq()) 976 if (kvm_tsc_changes_freq())
977 printk_once(KERN_WARNING 977 printk_once(KERN_WARNING
978 "kvm: unreliable cycle conversion on adjustable rate TSC\n"); 978 "kvm: unreliable cycle conversion on adjustable rate TSC\n");
979 ret = nsec * __get_cpu_var(cpu_tsc_khz); 979 ret = nsec * __this_cpu_read(cpu_tsc_khz);
980 do_div(ret, USEC_PER_SEC); 980 do_div(ret, USEC_PER_SEC);
981 return ret; 981 return ret;
982} 982}
@@ -1061,7 +1061,7 @@ static int kvm_guest_time_update(struct kvm_vcpu *v)
1061 local_irq_save(flags); 1061 local_irq_save(flags);
1062 kvm_get_msr(v, MSR_IA32_TSC, &tsc_timestamp); 1062 kvm_get_msr(v, MSR_IA32_TSC, &tsc_timestamp);
1063 kernel_ns = get_kernel_ns(); 1063 kernel_ns = get_kernel_ns();
1064 this_tsc_khz = __get_cpu_var(cpu_tsc_khz); 1064 this_tsc_khz = __this_cpu_read(cpu_tsc_khz);
1065 1065
1066 if (unlikely(this_tsc_khz == 0)) { 1066 if (unlikely(this_tsc_khz == 0)) {
1067 local_irq_restore(flags); 1067 local_irq_restore(flags);
@@ -4427,7 +4427,7 @@ EXPORT_SYMBOL_GPL(kvm_fast_pio_out);
4427 4427
4428static void tsc_bad(void *info) 4428static void tsc_bad(void *info)
4429{ 4429{
4430 __get_cpu_var(cpu_tsc_khz) = 0; 4430 __this_cpu_write(cpu_tsc_khz, 0);
4431} 4431}
4432 4432
4433static void tsc_khz_changed(void *data) 4433static void tsc_khz_changed(void *data)
@@ -4441,7 +4441,7 @@ static void tsc_khz_changed(void *data)
4441 khz = cpufreq_quick_get(raw_smp_processor_id()); 4441 khz = cpufreq_quick_get(raw_smp_processor_id());
4442 if (!khz) 4442 if (!khz)
4443 khz = tsc_khz; 4443 khz = tsc_khz;
4444 __get_cpu_var(cpu_tsc_khz) = khz; 4444 __this_cpu_write(cpu_tsc_khz, khz);
4445} 4445}
4446 4446
4447static int kvmclock_cpufreq_notifier(struct notifier_block *nb, unsigned long val, 4447static int kvmclock_cpufreq_notifier(struct notifier_block *nb, unsigned long val,