Question about BPF map type BPF_MAP_TYPE_PERCPU_HASH
I am using BPF_MAP_TYPE_HASH in BPF map definition and my program is working as expected.
I have read eBPF-map type BPF_MAP_TYPE_PERCPU_HASH allows for lock free uses of hash-tables in eBPF for high performance needs.
I am trying to modify BPF map type from BPF_MAP_TYPE_HASH to BPF_MAP_TYPE_PERCPU_HASH. But, when I run the program, I am getting issues in BPF map iteration (using bpf_map_get_next_key)
Can someone help me to know any points need to consider to use BPF_MAP_TYPE_PERCPU_HASH map type .