data.smp_size = size;
data.smp_type = type;
atomic_set(&data.count, num_booting_cpus() - 1);
+ /* make sure data.count is visible before unleashing other CPUs */
+ smp_wmb();
atomic_set(&data.gate,0);
/* Start the ball rolling on other CPUs */
/* ok, reset count and toggle gate */
atomic_set(&data.count, num_booting_cpus() - 1);
+ smp_wmb();
atomic_set(&data.gate,1);
/* do our MTRR business */
cpu_relax();
atomic_set(&data.count, num_booting_cpus() - 1);
+ smp_wmb();
atomic_set(&data.gate,0);
/*
*/
void mtrr_save_state(void)
{
- if (smp_processor_id() == 0)
+ int cpu = get_cpu();
+
+ if (cpu == 0)
mtrr_save_fixed_ranges(NULL);
else
smp_call_function_single(0, mtrr_save_fixed_ranges, NULL, 1, 1);
+ put_cpu();
}
static int __init mtrr_init_finialize(void)