this_cpu: Use this_cpu_xx in nmi handling
this_cpu_inc/dec reduces the number of instructions needed.
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c
index b129611..f30f4a1 100644
--- a/arch/sparc/kernel/nmi.c
+++ b/arch/sparc/kernel/nmi.c
@@ -47,7 +47,7 @@
static int endflag __initdata;
static DEFINE_PER_CPU(unsigned int, last_irq_sum);
-static DEFINE_PER_CPU(local_t, alert_counter);
+static DEFINE_PER_CPU(long, alert_counter);
static DEFINE_PER_CPU(int, nmi_touch);
void touch_nmi_watchdog(void)
@@ -112,13 +112,13 @@
touched = 1;
}
if (!touched && __get_cpu_var(last_irq_sum) == sum) {
- local_inc(&__get_cpu_var(alert_counter));
- if (local_read(&__get_cpu_var(alert_counter)) == 30 * nmi_hz)
+ __this_cpu_inc(per_cpu_var(alert_counter));
+ if (__this_cpu_read(per_cpu_var(alert_counter)) == 30 * nmi_hz)
die_nmi("BUG: NMI Watchdog detected LOCKUP",
regs, panic_on_timeout);
} else {
__get_cpu_var(last_irq_sum) = sum;
- local_set(&__get_cpu_var(alert_counter), 0);
+ __this_cpu_write(per_cpu_var(alert_counter), 0);
}
if (__get_cpu_var(wd_enabled)) {
write_pic(picl_value(nmi_hz));