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x86/xen: Fix incorrect per_cpu accessor in xen_clocksource_read() 

Commit 89cbc76768 ("x86: Replace __get_cpu_var uses") replaced
__get_cpu_var() with this_cpu_ptr() in xen_clocksource_read() in such a
way that instead of accessing a structure pointed to by a per-cpu pointer
we are trying to get to a per-cpu structure.

__this_cpu_read() of the pointer is the more appropriate accessor.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
This commit is contained in:
Boris Ostrovsky 2014-10-16 17:02:15 -04:00 committed by David Vrabel
parent 3a0e94f8ea
commit 3251f20b89
1 changed files with 1 additions and 1 deletions
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arch/x86/xen/time.c
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@ -158,7 +158,7 @@ cycle_t xen_clocksource_read(void)
cycle_t ret;
preempt_disable_notrace();
src = this_cpu_ptr(&xen_vcpu->time);
src = &__this_cpu_read(xen_vcpu)->time;
ret = pvclock_clocksource_read(src);
preempt_enable_notrace();
return ret;