Hello, Where to find exact documentation about what happens in kernel BPF helpers calls with respect to locking? For example, I have `bpf_map_lookup_elem()` in one thread, then work on pointer, and at this time, another thread does `bpf_map_delete_elem()` for exactly same key. What happens to memory the first thread still continue to work on? Is it now dangling pointer to nowhere? In my particular case it's a bpf_timer callback who does `bpf_map_delete_elem()`. I'd prefer for it to not delete entry if another thread did `lookup` and works already, is it possible to do so (in a performant way)? -- WBR, @nuclight
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