From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-Id: <20130518021654.813101863@goodmis.org> Date: Fri, 17 May 2013 22:17:18 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Liu Chuansheng , Li Fei , , , , Ingo Molnar Subject: [ 081/136 ] x86: Eliminate irq_mis_count counted in arch_irq_stat References: <20130518021557.139113314@goodmis.org> Content-Disposition: inline; filename=0081-x86-Eliminate-irq_mis_count-counted-in-arch_irq_stat.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.6.11.4 stable review patch. If anyone has any objections, please let me know. ------------------ From: Li Fei [ Upstream commit f7b0e1055574ce06ab53391263b4e205bf38daf3 ] 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 Signed-off-by: Steven Rostedt --- 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 d44f782..e62cf16 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; } -- 1.7.10.4