Re: [RFC PATCH 2/2] sched/tracing: Add TASK_RTLOCK_WAIT to TASK_REPORT

[Steven Rostedt]

On Mon, 29 Nov 2021 12:36:01 +0000
Valentin Schneider <valentin.schneider@xxxxxxx> wrote:

> TASK_RTLOCK_WAIT currently isn't part of TASK_REPORT, thus a task blocking
> on an rtlock will appear as having a task state == 0, IOW TASK_RUNNING.
> 
> The actual state is saved in p->saved_state, but reading it after reading
> p->__state has a few issues:
> o that could still be TASK_RUNNING in the case of e.g. rt_spin_lock
> o ttwu_state_match() might have changed that to TASK_RUNNING
> 
> Add TASK_RTLOCK_WAIT to TASK_REPORT.
> 

The patch looks good, but I may play with it more. But in the mean time...

Reviewed-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>

-- Steve