lkml.org 
[lkml]   [2019]   [Jan]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v3 4/4] /proc/stat: Call kstat_irqs_usr() only for active IRQs
On Fri, 11 Jan 2019, Thomas Gleixner wrote:
> --- a/kernel/irq/internals.h
> +++ b/kernel/irq/internals.h
> @@ -246,6 +246,7 @@ static inline void kstat_incr_irqs_this_
> {
> __this_cpu_inc(*desc->kstat_irqs);
> __this_cpu_inc(kstat.irqs_sum);
> + desc->tot_count++;

There is one issue here. True percpu interrupts, like the timer interrupts
on ARM(64), will access that in parallel. But that's not rocket science to
fix.

Thanks,

tglx


\
 
 \ /
  Last update: 2019-01-11 20:20    [W:0.058 / U:13.148 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site