[PATCH v3] kprobe/ftrace: bail out if ftrace was killed

[Steven Rostedt]

On Mon, 6 May 2024 14:46:57 +0000
Christophe Leroy <christophe.leroy at csgroup.eu> wrote:

> Isn't it safer to provide a fonction rather than a direct access to a 
> variable ?
> 
> By the way, wouldn't it be more performant to use a static branch (jump 
> label) ?

A static branch could work, but the point of this is that if ftrace
failed, it was likely due to an issue with text modification. Do we want to
stop it via text modification?

-- Steve