Messages in this thread | | | From | Alexei Starovoitov <> | Date | Thu, 21 Jul 2022 07:02:07 -0700 | Subject | Re: [PATCH bpf-next 1/4] bpf: add BPF_F_DESTRUCTIVE flag for BPF_PROG_LOAD |
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On Wed, Jul 20, 2022 at 4:47 AM Artem Savkov <asavkov@redhat.com> wrote: > > +/* If BPF_F_DESTRUCTIVE is used in BPF_PROG_LOAD command, the loaded program > + * will be able to perform destructive operations such as calling bpf_panic() > + * helper. > + */ > +#define BPF_F_DESTRUCTIVE (1U << 6)
I don't understand what value this flag provides.
bpf prog won't be using kexec accidentally. Requiring user space to also pass this flag seems pointless.
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