bpf: Remove tracing program restriction on map types

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The hash map is now fully converted to bpf_mem_alloc. Its implementation is not
allocating synchronously and not calling call_rcu() directly. It's now safe to
use non-preallocated hash maps in all types of tracing programs including
BPF_PROG_TYPE_PERF_EVENT that runs out of NMI context.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220902211058.60789-13-alexei.starovoitov@gmail.com

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Alexei Starovoitov 2022-09-02 14:10:54 -07:00 • committed by Daniel Borkmann

parent ee4ed53c5e

commit 96da3f7d48

1 changed files with 0 additions and 42 deletions

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kernel/bpf/verifier.c

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