diff options
| author | Li Fei <fei.li@intel.com> | 2013-04-26 20:50:11 +0800 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2013-05-30 14:34:50 +0100 |
| commit | 54d6a8acaa54f4292ed6ffb62eda5a3bdeecee06 (patch) | |
| tree | d0a542a02fe6c1c7bbed87c7a58abeb1c58a9c76 /arch | |
| parent | 3c6fc3ed92a2614f0027a778a3598764ace0bb11 (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: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/irq.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 429e0c92924..fb2eb324b29 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -160,10 +160,6 @@ 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; } |