[PATCH 04/40] kernel misc: Replace __get_cpu_var uses

[Christoph Lameter]

Replace uses of __get_cpu_var for address calculation with this_cpu_ptr.

Cc: akpm@xxxxxxxxxxxxxxxxxxxx
Signed-off-by: Christoph Lameter <cl@xxxxxxxxx>

Index: linux/kernel/printk/printk.c
===================================================================
--- linux.orig/kernel/printk/printk.c	2013-12-02 16:07:47.434699125 -0600
+++ linux/kernel/printk/printk.c	2013-12-02 16:07:47.434699125 -0600
@@ -2447,7 +2447,7 @@ static void wake_up_klogd_work_func(stru
 	int pending = __this_cpu_xchg(printk_pending, 0);
 
 	if (pending & PRINTK_PENDING_SCHED) {
-		char *buf = __get_cpu_var(printk_sched_buf);
+		char *buf = this_cpu_ptr(printk_sched_buf);
 		pr_warn("[sched_delayed] %s", buf);
 	}
 
@@ -2465,7 +2465,7 @@ void wake_up_klogd(void)
 	preempt_disable();
 	if (waitqueue_active(&log_wait)) {
 		this_cpu_or(printk_pending, PRINTK_PENDING_WAKEUP);
-		irq_work_queue(&__get_cpu_var(wake_up_klogd_work));
+		irq_work_queue(this_cpu_ptr(&wake_up_klogd_work));
 	}
 	preempt_enable();
 }
@@ -2478,14 +2478,14 @@ int printk_sched(const char *fmt, ...)
 	int r;
 
 	local_irq_save(flags);
-	buf = __get_cpu_var(printk_sched_buf);
+	buf = this_cpu_ptr(printk_sched_buf);
 
 	va_start(args, fmt);
 	r = vsnprintf(buf, PRINTK_BUF_SIZE, fmt, args);
 	va_end(args);
 
 	__this_cpu_or(printk_pending, PRINTK_PENDING_SCHED);
-	irq_work_queue(&__get_cpu_var(wake_up_klogd_work));
+	irq_work_queue(this_cpu_ptr(&wake_up_klogd_work));
 	local_irq_restore(flags);
 
 	return r;
Index: linux/kernel/smp.c
===================================================================
--- linux.orig/kernel/smp.c	2013-12-02 16:07:47.434699125 -0600
+++ linux/kernel/smp.c	2013-12-02 16:07:47.434699125 -0600
@@ -177,7 +177,7 @@ static void generic_exec_single(int cpu,
  */
 void generic_smp_call_function_single_interrupt(void)
 {
-	struct call_single_queue *q = &__get_cpu_var(call_single_queue);
+	struct call_single_queue *q = this_cpu_ptr(&call_single_queue);
 	LIST_HEAD(list);
 
 	/*
@@ -245,7 +245,7 @@ int smp_call_function_single(int cpu, sm
 			struct call_single_data *csd = &d;
 
 			if (!wait)
-				csd = &__get_cpu_var(csd_data);
+				csd = this_cpu_ptr(&csd_data);
 
 			csd_lock(csd);
 
@@ -393,7 +393,7 @@ void smp_call_function_many(const struct
 		return;
 	}
 
-	cfd = &__get_cpu_var(cfd_data);
+	cfd = this_cpu_ptr(&cfd_data);
 
 	cpumask_and(cfd->cpumask, mask, cpu_online_mask);
 	cpumask_clear_cpu(this_cpu, cfd->cpumask);

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