AcoSail/kernel_optimize_test
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Merge branch 'upstream/bugfix' of git://github.com/jsgf/linux-xen

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* 'upstream/bugfix' of git://github.com/jsgf/linux-xen:
  xen: use non-tracing preempt in xen_clocksource_read()
This commit is contained in:
Linus Torvalds 2011-09-12 17:22:31 -07:00
commit d9543314ee
1 changed files with 3 additions and 2 deletions
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arch/x86/xen/time.c
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@ -168,9 +168,10 @@ cycle_t xen_clocksource_read(void)
struct pvclock_vcpu_time_info *src;
cycle_t ret;
src = &get_cpu_var(xen_vcpu)->time;
preempt_disable_notrace();
src = &__get_cpu_var(xen_vcpu)->time;
ret = pvclock_clocksource_read(src);
put_cpu_var(xen_vcpu);
preempt_enable_notrace();
return ret;
}