linux-kernel - [percpu] Convert remaining __get_cpu

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Date:	Mon, 27 Oct 2014 10:49:45 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Tejun Heo <htejun@...il.com>
cc:	linux-arm-kernel@...ts.infradead.org,
	Will Deacon <will.deacon@....com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Catalin Marinas <catalin.marinas@....com>,
	John Stultz <john.stultz@...aro.org>,
	linux-kernel@...r.kernel.org
Subject: [percpu] Convert remaining __get_cpu_var uses in 3.18-rcX

During the 3.18 merge period additional __get_cpu_var uses were
added. The patch converts these to this_cpu_ptr().

Signed-off-by: Christoph Lameter <cl@...ux.com>

Index: linux/arch/arm64/kernel/psci.c
===================================================================
--- linux.orig/arch/arm64/kernel/psci.c
+++ linux/arch/arm64/kernel/psci.c
@@ -511,7 +511,7 @@ static int cpu_psci_cpu_kill(unsigned in

 static int psci_suspend_finisher(unsigned long index)
 {
-	struct psci_power_state *state = __get_cpu_var(psci_power_state);
+	struct psci_power_state *state = __this_cpu_read(psci_power_state);

 	return psci_ops.cpu_suspend(state[index - 1],
 				    virt_to_phys(cpu_resume));
@@ -520,7 +520,7 @@ static int psci_suspend_finisher(unsigne
 static int __maybe_unused cpu_psci_cpu_suspend(unsigned long index)
 {
 	int ret;
-	struct psci_power_state *state = __get_cpu_var(psci_power_state);
+	struct psci_power_state *state = __this_cpu_read(psci_power_state);
 	/*
 	 * idle state index 0 corresponds to wfi, should never be called
 	 * from the cpu_suspend operations
Index: linux/kernel/irq_work.c
===================================================================
--- linux.orig/kernel/irq_work.c
+++ linux/kernel/irq_work.c
@@ -175,11 +175,11 @@ EXPORT_SYMBOL_GPL(irq_work_run);

 void irq_work_tick(void)
 {
-	struct llist_head *raised = &__get_cpu_var(raised_list);
+	struct llist_head *raised = this_cpu_ptr(&raised_list);

 	if (!llist_empty(raised) && !arch_irq_work_has_interrupt())
 		irq_work_run_list(raised);
-	irq_work_run_list(&__get_cpu_var(lazy_list));
+	irq_work_run_list(this_cpu_ptr(&lazy_list));
 }

 /*
Index: linux/kernel/time/tick-sched.c
===================================================================
--- linux.orig/kernel/time/tick-sched.c
+++ linux/kernel/time/tick-sched.c
@@ -235,7 +235,7 @@ void tick_nohz_full_kick(void)
 	if (!tick_nohz_full_cpu(smp_processor_id()))
 		return;

-	irq_work_queue(&__get_cpu_var(nohz_full_kick_work));
+	irq_work_queue(this_cpu_ptr(&nohz_full_kick_work));
 }

 /*
--
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