elf_reader: don't use BPF_F_RDONLY_PROG flag to trigger map freezing #1568
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In cilium#1558, it was pointed out that BPF_F_RDONLY_PROG only implies a map being read-only from bpf space, not user space. Using the flag to trigger freezing a map from user space doesn't make much sense. Change this to a name-based trigger, more closely resembling the libbpf behaviour. Signed-off-by: Timo Beckers <timo@isovalent.com>
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In #1558 (review), it was pointed out that BPF_F_RDONLY_PROG only implies a map being read-only from bpf space, not user space. Using the flag to trigger freezing a map from user space doesn't make much sense.
Change this to a name-based trigger, more closely resembling the libbpf behaviour.