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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-11-15 15:15:03 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-12-20 16:06:58 +0100 |
| commit | 46c48f222f568decb881a552caa1c8f9c96c521e (patch) | |
| tree | d84e79cfc44af8d99eb23e2aebee376feb55ef8a | |
| parent | ARM: include local timer irq stats only when local timers configured (diff) | |
| download | linux-46c48f222f568decb881a552caa1c8f9c96c521e.tar.xz linux-46c48f222f568decb881a552caa1c8f9c96c521e.zip | |
ARM: SMP: provide accessors for irq_stat data
Provide __inc_irq_stat() and __get_irq_stat() to increment and
read the irq stat counters.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/include/asm/hardirq.h | 3 | ||||
| -rw-r--r-- | arch/arm/kernel/smp.c | 4 |
2 files changed, 5 insertions, 2 deletions
diff --git a/arch/arm/include/asm/hardirq.h b/arch/arm/include/asm/hardirq.h index 522fb23241ac..923eaa1ba83b 100644 --- a/arch/arm/include/asm/hardirq.h +++ b/arch/arm/include/asm/hardirq.h @@ -14,6 +14,9 @@ typedef struct { #include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */ +#define __inc_irq_stat(cpu, member) __IRQ_STAT(cpu, member)++ +#define __get_irq_stat(cpu, member) __IRQ_STAT(cpu, member) + #if NR_IRQS > 512 #define HARDIRQ_BITS 10 #elif NR_IRQS > 256 diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 36d4b9140dcf..24131264ec2c 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -423,7 +423,7 @@ asmlinkage void __exception do_local_timer(struct pt_regs *regs) int cpu = smp_processor_id(); if (local_timer_ack()) { - irq_stat[cpu].local_timer_irqs++; + __inc_irq_stat(cpu, local_timer_irqs); ipi_timer(); } @@ -437,7 +437,7 @@ void show_local_irqs(struct seq_file *p) seq_printf(p, "LOC: "); for_each_present_cpu(cpu) - seq_printf(p, "%10u ", irq_stat[cpu].local_timer_irqs); + seq_printf(p, "%10u ", __get_irq_stat(cpu, local_timer_irqs)); seq_putc(p, '\n'); } |