Re: [PATCH 3/3] uprobes: implement SRCU-protected lifetime for single-stepped uprobe

On Sun, Sep 15, 2024 at 4:51 PM Oleg Nesterov [off-list ref] wrote:

On 09/09, Andrii Nakryiko wrote:

quoted

Similarly to how we SRCU-protect uprobe instance (and avoid refcounting
it unnecessarily) when waiting for return probe hit, use hprobe approach
to do the same with single-stepped uprobe. Same hprobe_* primitives are
used. We also reuse ri_timer() callback to expire both pending
single-step uprobe and return instances.

Well, I still think it would be better (and much simpler) to simply kill
utask->active_uprobe, iirc I even sent the RFC patch...

let's do it, please send non-RFC patches and get them landed!

Oleg.