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Date: Fri, 23 Aug 2013 19:02:13 +0000
From: Christoph Lameter <cl@...ux.com>
To: Tejun Heo <tj@...nel.org>
Cc: linux-kernel@...r.kernel.org
Subject: [guv 05/16] drivers: Convert __get_cpu_var uses
Signed-off-by: Christoph Lameter <cl@...ux.com>
Index: linux/drivers/char/random.c
===================================================================
--- linux.orig/drivers/char/random.c 2013-08-22 14:16:11.335913933 -0500
+++ linux/drivers/char/random.c 2013-08-22 14:16:11.319914096 -0500
@@ -744,7 +744,7 @@ static DEFINE_PER_CPU(struct fast_pool,
void add_interrupt_randomness(int irq, int irq_flags)
{
struct entropy_store *r;
- struct fast_pool *fast_pool = &__get_cpu_var(irq_randomness);
+ struct fast_pool *fast_pool = this_cpu_ptr(&irq_randomness);
struct pt_regs *regs = get_irq_regs();
unsigned long now = jiffies;
__u32 input[4], cycles = get_cycles();
Index: linux/drivers/clocksource/metag_generic.c
===================================================================
--- linux.orig/drivers/clocksource/metag_generic.c 2013-08-22 14:16:11.335913933 -0500
+++ linux/drivers/clocksource/metag_generic.c 2013-08-22 14:16:11.323914055 -0500
@@ -90,7 +90,7 @@ static struct clocksource clocksource_me
static irqreturn_t metag_timer_interrupt(int irq, void *dummy)
{
- struct clock_event_device *evt = &__get_cpu_var(local_clockevent);
+ struct clock_event_device *evt = this_cpu_ptr(&local_clockevent);
evt->event_handler(evt);
Index: linux/drivers/cpuidle/governors/ladder.c
===================================================================
--- linux.orig/drivers/cpuidle/governors/ladder.c 2013-08-22 14:16:11.335913933 -0500
+++ linux/drivers/cpuidle/governors/ladder.c 2013-08-22 14:16:11.323914055 -0500
@@ -66,7 +66,7 @@ static inline void ladder_do_selection(s
static int ladder_select_state(struct cpuidle_driver *drv,
struct cpuidle_device *dev)
{
- struct ladder_device *ldev = &__get_cpu_var(ladder_devices);
+ struct ladder_device *ldev = this_cpu_ptr(&ladder_devices);
struct ladder_device_state *last_state;
int last_residency, last_idx = ldev->last_state_idx;
int latency_req = pm_qos_request(PM_QOS_CPU_DMA_LATENCY);
@@ -170,7 +170,7 @@ static int ladder_enable_device(struct c
*/
static void ladder_reflect(struct cpuidle_device *dev, int index)
{
- struct ladder_device *ldev = &__get_cpu_var(ladder_devices);
+ struct ladder_device *ldev = this_cpu_ptr(&ladder_devices);
if (index > 0)
ldev->last_state_idx = index;
}
Index: linux/drivers/cpuidle/governors/menu.c
===================================================================
--- linux.orig/drivers/cpuidle/governors/menu.c 2013-08-22 14:16:11.335913933 -0500
+++ linux/drivers/cpuidle/governors/menu.c 2013-08-22 14:16:11.323914055 -0500
@@ -258,7 +258,7 @@ again:
*/
static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev)
{
- struct menu_device *data = &__get_cpu_var(menu_devices);
+ struct menu_device *data = this_cpu_ptr(&menu_devices);
int latency_req = pm_qos_request(PM_QOS_CPU_DMA_LATENCY);
int i;
int multiplier;
@@ -342,7 +342,7 @@ static int menu_select(struct cpuidle_dr
*/
static void menu_reflect(struct cpuidle_device *dev, int index)
{
- struct menu_device *data = &__get_cpu_var(menu_devices);
+ struct menu_device *data = this_cpu_ptr(&menu_devices);
data->last_state_idx = index;
if (index >= 0)
data->needs_update = 1;
@@ -355,7 +355,7 @@ static void menu_reflect(struct cpuidle_
*/
static void menu_update(struct cpuidle_driver *drv, struct cpuidle_device *dev)
{
- struct menu_device *data = &__get_cpu_var(menu_devices);
+ struct menu_device *data = this_cpu_ptr(&menu_devices);
int last_idx = data->last_state_idx;
unsigned int last_idle_us = cpuidle_get_last_residency(dev);
struct cpuidle_state *target = &drv->states[last_idx];
Index: linux/drivers/leds/trigger/ledtrig-cpu.c
===================================================================
--- linux.orig/drivers/leds/trigger/ledtrig-cpu.c 2013-08-22 14:16:11.335913933 -0500
+++ linux/drivers/leds/trigger/ledtrig-cpu.c 2013-08-22 14:16:11.323914055 -0500
@@ -46,7 +46,7 @@ static DEFINE_PER_CPU(struct led_trigger
*/
void ledtrig_cpu(enum cpu_led_event ledevt)
{
- struct led_trigger_cpu *trig = &__get_cpu_var(cpu_trig);
+ struct led_trigger_cpu *trig = this_cpu_ptr(&cpu_trig);
/* Locate the correct CPU LED */
switch (ledevt) {
Index: linux/drivers/net/ethernet/tile/tilegx.c
===================================================================
--- linux.orig/drivers/net/ethernet/tile/tilegx.c 2013-08-22 14:16:11.335913933 -0500
+++ linux/drivers/net/ethernet/tile/tilegx.c 2013-08-22 14:16:11.323914055 -0500
@@ -368,7 +368,7 @@ static void tile_net_pop_all_buffers(int
/* Provide linux buffers to mPIPE. */
static void tile_net_provide_needed_buffers(void)
{
- struct tile_net_info *info = &__get_cpu_var(per_cpu_info);
+ struct tile_net_info *info = this_cpu_ptr(&per_cpu_info);
while (info->num_needed_small_buffers != 0) {
if (!tile_net_provide_buffer(true))
@@ -407,7 +407,7 @@ static inline bool filter_packet(struct
static void tile_net_receive_skb(struct net_device *dev, struct sk_buff *skb,
gxio_mpipe_idesc_t *idesc, unsigned long len)
{
- struct tile_net_info *info = &__get_cpu_var(per_cpu_info);
+ struct tile_net_info *info = this_cpu_ptr(&per_cpu_info);
struct tile_net_priv *priv = netdev_priv(dev);
/* Encode the actual packet length. */
@@ -435,7 +435,7 @@ static void tile_net_receive_skb(struct
/* Handle a packet. Return true if "processed", false if "filtered". */
static bool tile_net_handle_packet(gxio_mpipe_idesc_t *idesc)
{
- struct tile_net_info *info = &__get_cpu_var(per_cpu_info);
+ struct tile_net_info *info = this_cpu_ptr(&per_cpu_info);
struct net_device *dev = tile_net_devs_for_channel[idesc->channel];
uint8_t l2_offset;
void *va;
@@ -498,7 +498,7 @@ static bool tile_net_handle_packet(gxio_
*/
static int tile_net_poll(struct napi_struct *napi, int budget)
{
- struct tile_net_info *info = &__get_cpu_var(per_cpu_info);
+ struct tile_net_info *info = this_cpu_ptr(&per_cpu_info);
unsigned int work = 0;
gxio_mpipe_idesc_t *idesc;
int i, n;
@@ -536,7 +536,7 @@ done:
/* Handle an ingress interrupt on the current cpu. */
static irqreturn_t tile_net_handle_ingress_irq(int irq, void *unused)
{
- struct tile_net_info *info = &__get_cpu_var(per_cpu_info);
+ struct tile_net_info *info = this_cpu_ptr(&per_cpu_info);
napi_schedule(&info->napi);
return IRQ_HANDLED;
}
@@ -597,7 +597,7 @@ static enum hrtimer_restart tile_net_han
/* Make sure the egress timer is scheduled. */
static void tile_net_schedule_egress_timer(void)
{
- struct tile_net_info *info = &__get_cpu_var(per_cpu_info);
+ struct tile_net_info *info = this_cpu_ptr(&per_cpu_info);
if (!info->egress_timer_scheduled) {
hrtimer_start(&info->egress_timer,
@@ -614,7 +614,7 @@ static void tile_net_schedule_egress_tim
*/
static enum hrtimer_restart tile_net_handle_egress_timer(struct hrtimer *t)
{
- struct tile_net_info *info = &__get_cpu_var(per_cpu_info);
+ struct tile_net_info *info = this_cpu_ptr(&per_cpu_info);
unsigned long irqflags;
bool pending = false;
int i;
@@ -649,7 +649,7 @@ static enum hrtimer_restart tile_net_han
*/
static void tile_net_update_cpu(void *arg)
{
- struct tile_net_info *info = &__get_cpu_var(per_cpu_info);
+ struct tile_net_info *info = this_cpu_ptr(&per_cpu_info);
struct net_device *dev = arg;
if (!info->has_iqueue)
@@ -1572,7 +1572,7 @@ static void tso_egress(struct net_device
*/
static int tile_net_tx_tso(struct sk_buff *skb, struct net_device *dev)
{
- struct tile_net_info *info = &__get_cpu_var(per_cpu_info);
+ struct tile_net_info *info = this_cpu_ptr(&per_cpu_info);
struct tile_net_priv *priv = netdev_priv(dev);
int channel = priv->echannel;
struct tile_net_egress *egress = &egress_for_echannel[channel];
@@ -1638,7 +1638,7 @@ static unsigned int tile_net_tx_frags(st
/* Help the kernel transmit a packet. */
static int tile_net_tx(struct sk_buff *skb, struct net_device *dev)
{
- struct tile_net_info *info = &__get_cpu_var(per_cpu_info);
+ struct tile_net_info *info = this_cpu_ptr(&per_cpu_info);
struct tile_net_priv *priv = netdev_priv(dev);
struct tile_net_egress *egress = &egress_for_echannel[priv->echannel];
gxio_mpipe_equeue_t *equeue = egress->equeue;
@@ -1869,7 +1869,7 @@ static void tile_net_dev_init(const char
/* Per-cpu module initialization. */
static void tile_net_init_module_percpu(void *unused)
{
- struct tile_net_info *info = &__get_cpu_var(per_cpu_info);
+ struct tile_net_info *info = this_cpu_ptr(&per_cpu_info);
int my_cpu = smp_processor_id();
info->has_iqueue = false;
Index: linux/drivers/net/ethernet/tile/tilepro.c
===================================================================
--- linux.orig/drivers/net/ethernet/tile/tilepro.c 2013-08-22 14:16:11.335913933 -0500
+++ linux/drivers/net/ethernet/tile/tilepro.c 2013-08-22 14:16:11.327914014 -0500
@@ -1078,13 +1078,13 @@ static void tile_net_register(void *dev_
PDEBUG("tile_net_register(queue_id %d)\n", queue_id);
if (!strcmp(dev->name, "xgbe0"))
- info = &__get_cpu_var(hv_xgbe0);
+ info = this_cpu_ptr(&hv_xgbe0);
else if (!strcmp(dev->name, "xgbe1"))
- info = &__get_cpu_var(hv_xgbe1);
+ info = this_cpu_ptr(&hv_xgbe1);
else if (!strcmp(dev->name, "gbe0"))
- info = &__get_cpu_var(hv_gbe0);
+ info = this_cpu_ptr(&hv_gbe0);
else if (!strcmp(dev->name, "gbe1"))
- info = &__get_cpu_var(hv_gbe1);
+ info = this_cpu_ptr(&hv_gbe1);
else
BUG();
Index: linux/drivers/oprofile/cpu_buffer.c
===================================================================
--- linux.orig/drivers/oprofile/cpu_buffer.c 2013-08-22 14:16:11.335913933 -0500
+++ linux/drivers/oprofile/cpu_buffer.c 2013-08-22 14:16:11.327914014 -0500
@@ -45,7 +45,7 @@ unsigned long oprofile_get_cpu_buffer_si
void oprofile_cpu_buffer_inc_smpl_lost(void)
{
- struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(op_cpu_buffer);
+ struct oprofile_cpu_buffer *cpu_buf = this_cpu_ptr(&op_cpu_buffer);
cpu_buf->sample_lost_overflow++;
}
@@ -297,7 +297,7 @@ __oprofile_add_ext_sample(unsigned long
unsigned long event, int is_kernel,
struct task_struct *task)
{
- struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(op_cpu_buffer);
+ struct oprofile_cpu_buffer *cpu_buf = this_cpu_ptr(&op_cpu_buffer);
unsigned long backtrace = oprofile_backtrace_depth;
/*
@@ -357,7 +357,7 @@ oprofile_write_reserve(struct op_entry *
{
struct op_sample *sample;
int is_kernel = !user_mode(regs);
- struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(op_cpu_buffer);
+ struct oprofile_cpu_buffer *cpu_buf = this_cpu_ptr(&op_cpu_buffer);
cpu_buf->sample_received++;
@@ -412,13 +412,13 @@ int oprofile_write_commit(struct op_entr
void oprofile_add_pc(unsigned long pc, int is_kernel, unsigned long event)
{
- struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(op_cpu_buffer);
+ struct oprofile_cpu_buffer *cpu_buf = this_cpu_ptr(&op_cpu_buffer);
log_sample(cpu_buf, pc, 0, is_kernel, event, NULL);
}
void oprofile_add_trace(unsigned long pc)
{
- struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(op_cpu_buffer);
+ struct oprofile_cpu_buffer *cpu_buf = this_cpu_ptr(&op_cpu_buffer);
if (!cpu_buf->tracing)
return;
Index: linux/drivers/oprofile/timer_int.c
===================================================================
--- linux.orig/drivers/oprofile/timer_int.c 2013-08-22 14:16:11.335913933 -0500
+++ linux/drivers/oprofile/timer_int.c 2013-08-22 14:16:11.327914014 -0500
@@ -32,7 +32,7 @@ static enum hrtimer_restart oprofile_hrt
static void __oprofile_hrtimer_start(void *unused)
{
- struct hrtimer *hrtimer = &__get_cpu_var(oprofile_hrtimer);
+ struct hrtimer *hrtimer = this_cpu_ptr(&oprofile_hrtimer);
if (!ctr_running)
return;
--
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