Il 14/06/2013 23:30, Marcelo Tosatti ha scritto: > > Serialize RDTSC so its executed inside kvmclock_read > section. > > Fixes https://bugzilla.redhat.com/show_bug.cgi?id=922285 > > Signed-off-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx> > > diff --git a/x86/kvmclock.c b/x86/kvmclock.c > index 0624da3..5b831c5 100644 > --- a/x86/kvmclock.c > +++ b/x86/kvmclock.c > @@ -177,10 +177,10 @@ cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src) > > do { > version = pvclock_get_time_values(&shadow, src); > - barrier(); > + mb(); > offset = pvclock_get_nsec_offset(&shadow); > ret = shadow.system_timestamp + offset; > - barrier(); > + mb(); > } while (version != src->version); > > if ((valid_flags & PVCLOCK_RAW_CYCLE_BIT) || > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > Applied, thanks. Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
