# Re: \[PATCH v2 4/4\] bpf: export bpf\_jit\_current

- From: Lorenz Bauer \<hidden\>
- Date: 2021-10-13 08:35:20 
- List: linux-doc
- Page: https://ratatoskr.run/linux-doc/2021/10/1540062
- Thread: https://ratatoskr.run/linux-doc/2021/10/1539115/t.md

```text
On Tue, 12 Oct 2021 at 17:29, Nicolas Dichtel [ref] wrote:
>
> Le 12/10/2021 à 15:59, Lorenz Bauer a écrit :
> > Expose bpf_jit_current as a read only value via sysctl.
> >
> > Signed-off-by: Lorenz Bauer <redacted>
> > ---
>
> [snip]
>
> > +     {
> > +             .procname       = "bpf_jit_current",
> > +             .data           = &bpf_jit_current,
> > +             .maxlen         = sizeof(long),
> > +             .mode           = 0400,
> Why not 0444 ?

This mirrors what the other BPF related sysctls do, which only allow
access from root with CAP_SYS_ADMIN. I'd prefer 0444 as well, but
Daniel explicitly locked down these sysctls in
2e4a30983b0f9b19b59e38bbf7427d7fdd480d98.

Lorenz

--
Lorenz Bauer  |  Systems Engineer
6th Floor, County Hall/The Riverside Building, SE1 7PB, UK

www.cloudflare.com
```