From f7b0e1055574ce06ab53391263b4e205bf38daf3 Mon Sep 17 00:00:00 2001 From: Li Fei Date: Fri, 26 Apr 2013 20:50:11 +0800 Subject: [PATCH] x86: Eliminate irq_mis_count counted in arch_irq_stat With the current implementation, kstat_cpu(cpu).irqs_sum is also increased in case of irq_mis_count increment. So there is no need to count irq_mis_count in arch_irq_stat, otherwise irq_mis_count will be counted twice in the sum of /proc/stat. Reported-by: Liu Chuansheng Signed-off-by: Li Fei Acked-by: Liu Chuansheng Cc: tomoki.sekiyama.qu@hitachi.com Cc: joe@perches.com Link: http://lkml.kernel.org/r/1366980611.32469.7.camel@fli24-HP-Compaq-8100-Elite-CMT-PC Cc: Signed-off-by: Ingo Molnar --- arch/x86/kernel/irq.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index e4595f105910..84b778962c66 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -165,10 +165,6 @@ u64 arch_irq_stat_cpu(unsigned int cpu) u64 arch_irq_stat(void) { u64 sum = atomic_read(&irq_err_count); - -#ifdef CONFIG_X86_IO_APIC - sum += atomic_read(&irq_mis_count); -#endif return sum; }