[PARISC] Add __read_mostly section for parisc
Flag a whole bunch of things as __read_mostly on parisc. Also flag a few
branches as unlikely() and cleanup a bit of code.
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
diff --git a/arch/parisc/kernel/pdc_chassis.c b/arch/parisc/kernel/pdc_chassis.c
index 52004ae..2a01fe1 100644
--- a/arch/parisc/kernel/pdc_chassis.c
+++ b/arch/parisc/kernel/pdc_chassis.c
@@ -30,6 +30,7 @@
#include <linux/kernel.h>
#include <linux/reboot.h>
#include <linux/notifier.h>
+#include <linux/cache.h>
#include <asm/pdc_chassis.h>
#include <asm/processor.h>
@@ -38,8 +39,8 @@
#ifdef CONFIG_PDC_CHASSIS
-static int pdc_chassis_old = 0;
-static unsigned int pdc_chassis_enabled = 1;
+static int pdc_chassis_old __read_mostly = 0;
+static unsigned int pdc_chassis_enabled __read_mostly = 1;
/**
@@ -132,7 +133,7 @@
{
#ifdef CONFIG_PDC_CHASSIS
int handle = 0;
- if (pdc_chassis_enabled) {
+ if (likely(pdc_chassis_enabled)) {
DPRINTK(KERN_DEBUG "%s: parisc_pdc_chassis_init()\n", __FILE__);
/* Let see if we have something to handle... */
@@ -142,7 +143,7 @@
printk(KERN_INFO "Enabling PDC_PAT chassis codes support.\n");
handle = 1;
}
- else if (pdc_chassis_old) {
+ else if (unlikely(pdc_chassis_old)) {
printk(KERN_INFO "Enabling old style chassis LED panel support.\n");
handle = 1;
}
@@ -178,7 +179,7 @@
/* Maybe we should do that in an other way ? */
int retval = 0;
#ifdef CONFIG_PDC_CHASSIS
- if (pdc_chassis_enabled) {
+ if (likely(pdc_chassis_enabled)) {
DPRINTK(KERN_DEBUG "%s: pdc_chassis_send_status(%d)\n", __FILE__, message);
@@ -214,7 +215,7 @@
}
} else retval = -1;
#else
- if (pdc_chassis_old) {
+ if (unlikely(pdc_chassis_old)) {
switch (message) {
case PDC_CHASSIS_DIRECT_BSTART:
case PDC_CHASSIS_DIRECT_BCOMPLETE: