Re: [PATCH v2 1/1] psi: Fix uaf issue when psi trigger is destroyed while being polled

On Tue, Jan 11, 2022 at 11:27 AM Suren Baghdasaryan surenb@google.com wrote:

Thanks for the explanation! So, it sounds like the best (semantically correct) option I have here is smp_store_release() to set the pointer, and then smp_load_acquire() to read it. Is my understanding correct?

Yeah, that's the clearest one from a memory ordering standpoint, and is generally also cheap.

Linus