Re: [RFC PATCH v1] tracing: Fix syscall tracepoint use-after-free

[Steven Rostedt]

On Fri, 25 Oct 2024 15:38:48 -0400
Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> wrote:

> > I'm curious if it might be better to add some field to struct
> > tracepoint like "sleepable" rather than adding a special case here
> > based on the name? Of course, if it's only ever going to be these
> > two cases then maybe adding a new field doesn't make sense.  
> 
> I know Steven is reluctant to bloat the tracepoint struct because there
> are lots of tracepoint instances (thousands). So for now I thought that
> just comparing the name would be a good start.

You are correct. I really trying to keep the footprint of
tracepoints/events down.

> 
> We can eventually go a different route as well: introduce a section just
> to put the syscall tracepoints, and compare the struct tracepoint
> pointers to the section begin/end range. But it's rather complex
> for what should remain a simple fix.

A separate section could work.

-- Steve