On 2/27/19 4:28 PM, Andrii Nakryiko wrote: > No, it won't, because bpf_map_meta_alloc explicitly tests for it: > > if (map_value_has_spin_lock(inner_map)) { > fdput(f); > return ERR_PTR(-ENOTSUPP); > } > > Maybe Alexei can clarify?
inner map can be replaced while progs are running. I don't think added complexity is worth it. Hence it's disallowed for time being.