Eelco Chaudron <echau...@redhat.com> writes:

> When the probe code was failing for any reason ENOTSUP was returned, even
> if this was due to no having enough lock space. This patch fixes this by
> returning EPERM to the user application, so it can respond and increase
> the RLIMIT_MEMLOCK size.
>
> Signed-off-by: Eelco Chaudron <echau...@redhat.com>

Acked-by: Toke Høiland-Jørgensen <t...@redhat.com>

For context - we ran into this in xdp-tools where we've implemented
"fiddle rlimit and retry" logic in response to EPERM errors, and
suddenly we were seeing ENOTSUP errors instead. See discussion here:

https://github.com/xdp-project/xdp-tools/pull/16

-Toke

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