On 3/2/22 1:30 PM, Alexei Starovoitov wrote:
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.
sounds good to me. Agree that for the bpf user case, Hao's
implementation should be enough.
