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Commit cab8c6f3 authored by Russell King's avatar Russell King
Browse files

ARM: SMP: move ipi_count into irq_stat structure 



Move the ipi_count into irq_stat, which allows the ipi_data structure
to be entirely removed.

Reviewed-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 46c48f22

arch/arm/include/asm/hardirq.h

+3 −0
Original line number Diff line number Diff line
@@ -10,6 +10,9 @@ typedef struct { 
#ifdef CONFIG_LOCAL_TIMERS

	unsigned int local_timer_irqs;

#endif

#ifdef CONFIG_SMP

	unsigned int ipi_irqs;

#endif

} ____cacheline_aligned irq_cpustat_t;



#include <linux/irq_cpustat.h>	/* Standard mappings for irq_cpustat_t above */

arch/arm/kernel/smp.c

+2 −12
Original line number Diff line number Diff line
@@ -46,15 +46,6 @@ 
 */

struct secondary_data secondary_data;



/*

 * structures for inter-processor calls

 */

struct ipi_data {

	unsigned long ipi_count;

};



static DEFINE_PER_CPU(struct ipi_data, ipi_data);



enum ipi_msg_type {

	IPI_TIMER = 2,

	IPI_RESCHEDULE,
@@ -398,7 +389,7 @@ void show_ipi_list(struct seq_file *p) 
	seq_puts(p, "IPI:");



	for_each_present_cpu(cpu)

		seq_printf(p, " %10lu", per_cpu(ipi_data, cpu).ipi_count);

		seq_printf(p, " %10u", __get_irq_stat(cpu, ipi_irqs));



	seq_putc(p, '\n');

}
@@ -513,10 +504,9 @@ static void ipi_cpu_stop(unsigned int cpu) 
asmlinkage void __exception do_IPI(int ipinr, struct pt_regs *regs)

{

	unsigned int cpu = smp_processor_id();

	struct ipi_data *ipi = &per_cpu(ipi_data, cpu);

	struct pt_regs *old_regs = set_irq_regs(regs);



	ipi->ipi_count++;

	__inc_irq_stat(cpu, ipi_irqs);



	switch (ipinr) {

	case IPI_TIMER: