On Tue, Oct 15, 2019 at 08:24:54PM -0700, Alexei Starovoitov wrote:
> v2->v3:
> - while trying to adopt btf-based tracing in production service realized
> that disabling bpf_probe_read() was premature. The real tracing program
> needs to see much more than this type safe tracking can provide.
>
On Tue, Oct 15, 2019 at 08:24:54PM -0700, Alexei Starovoitov wrote:
> The end result is safer and faster bpf tracing.
> Safer - because type safe direct load can be used most of the time
> instead of bpf_probe_read().
> Faster - because direct loads are used to walk kernel data structures
> instead
v2->v3:
- while trying to adopt btf-based tracing in production service realized
that disabling bpf_probe_read() was premature. The real tracing program
needs to see much more than this type safe tracking can provide.
With these patches the verifier will be able to see that skb->data
is a p
