lock around the sysctl code that sets the bpf buffer sizes so if we ever get multiple processes in the kernel these sets cant race and allow people to set the default greater than the max.
lock around the sysctl code that sets the bpf buffer sizes so if we ever
get multiple processes in the kernel these sets cant race and allow people
to set the default greater than the max.

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars