Re: [PATCH bpf-next v1 4/9] bpf: Introduce sleepable tracepoints

[Alexei Starovoitov]

On Wed, Mar 2, 2022 at 1:23 PM Yonghong Song <yhs@xxxxxx> wrote:
>
>
>
> On 2/25/22 3:43 PM, Hao Luo wrote:
> > Add a new type of bpf tracepoints: sleepable tracepoints, which allows
> > the handler to make calls that may sleep. With sleepable tracepoints, a
> > set of syscall helpers (which may sleep) may also be called from
> > sleepable tracepoints.
>
> There are some old discussions on sleepable tracepoints, maybe
> worthwhile to take a look.
>
> https://lore.kernel.org/bpf/20210218222125.46565-5-mjeanson@xxxxxxxxxxxx/T/

Right. It's very much related, but obsolete too.
We don't need any of that for sleeptable _raw_ tps.
I prefer to stay with "sleepable" name as well to
match the rest of the bpf sleepable code.
In all cases it's faultable.