Re: [PATCH] workqueue: Fix type of cpu in trace event

[Tejun Heo]

On Tue, May 24, 2022 at 04:29:12PM -0400, Steven Rostedt wrote:
> On Wed,  4 May 2022 11:32:03 +0900
> Wonhyuk Yang <vvghjk1234@xxxxxxxxx> wrote:
> 
> > The trace event "workqueue_queue_work" use unsigned int type for
> > req_cpu, cpu. This casue confusing cpu number like below log.
> > 
> > $ cat /sys/kernel/debug/tracing/trace
> > cat-317  [001] ...: workqueue_queue_work: ... req_cpu=8192 cpu=4294967295
> > 
> > So, change unsigned type to signed type in the trace event. After
> > applying this patch, cpu number will be printed as -1 instead of
> > 4294967295 as folllows.
> > 
> 
> I was going through my backlog of pending patches and came across this.
> Note, that trace events are maintained by the subsystem they belong to.
> This change is for workqueues, not tracing (as your subject correctly
> states).
> 
> I Cc'd Tejun here as he maintains this code.

I'll apply it to the wq tree once rc1 drops.

Thanks.

-- 
tejun