lkml.org 
[lkml]   [2021]   [Oct]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2] tracing: Fix event probe removal from dynamic events
On Wed, 13 Oct 2021 23:32:44 +0900
Masami Hiramatsu <mhiramat@kernel.org> wrote:

> > Then the following should work:
> >
> > # echo '-:hrstate timer/hrtimer_cancel state=+0x38($hrtimer):u8' >> dynamic_events
> > # echo '-:eprobes/hrstate timer.hrtimer_cancel state=+0x38($hrtimer):u8' >> dynamic_events
> > # echo '-:eprobes/hrstate timer.hrtimer_cancel' >> dynamic_events
> > # echo '-:eprobes/hrstate' >> dynamic_events
>
> Agreed.
>
> >
> > But the following will not work:
> >
> > # echo '-:hrstate state=+0x38($hrtimer):u8' >> dynamic_events
> > # echo '-:hrstate timer.hrtimer_cancel state=+0x38($hrtimer):u8' >> dynamic_events
> > # echo '-:hrstate timer.hrtimer_cancel' >> dynamic_events
>
> The first one is agreed. But the rest 2 cases should work because it just omits the
> group name. At least {k,u}probe events work.
>
> > Should this work?
> >
> > # echo '-:hrstate' >> dynamic_events
>
> Yes. In this case, all dynamic events which have "hrstate" event name are removed.


Thanks for the feedback. I'll update it.

-- Steve

\
 
 \ /
  Last update: 2021-10-13 17:11    [W:0.261 / U:0.052 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site