summaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
authorLi Fei <fei.li@intel.com>2013-04-26 20:50:11 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-05-07 20:33:15 -0700
commit00cd3d291eb32b75b43fa945a5bce1357e03d58d (patch)
treeb0d12e4c0ae1954dc7ca4107b3dc0af6091ae15c /arch
parent32f7af708e7e73cc0e2a280a06fbb13a0b113692 (diff)
x86: Eliminate irq_mis_count counted in arch_irq_stat
commit f7b0e1055574ce06ab53391263b4e205bf38daf3 upstream. 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 <chuansheng.liu@intel.com> Signed-off-by: Li Fei <fei.li@intel.com> Acked-by: Liu Chuansheng <chuansheng.liu@intel.com> 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 Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/irq.c4
1 files changed, 0 insertions, 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;
}