bpf: Allow some trace helpers for all prog types

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if it works under NMI and doesn't use any context-dependent things,
should be fine for any program type. The detailed discussion is in [1].

[1] https://lore.kernel.org/all/CAEf4Bza6gK3dsrTosk6k3oZgtHesNDSrDd8sdeQ-GiS6oJixQg@mail.gmail.com/

Suggested-by: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Signed-off-by: Feng Yang <yangfeng@kylinos.cn>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/bpf/20250506061434.94277-2-yangfeng59949@163.com

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This commit is contained in:

Feng Yang 2025-05-06 14:14:33 +08:00 • committed by Andrii Nakryiko

parent 32c563d109

commit ee971630f2

5 changed files with 46 additions and 91 deletions

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8

include/linux/bpf-cgroup.h

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32

kernel/bpf/cgroup.c

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42

kernel/bpf/helpers.c

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41

kernel/trace/bpf_trace.c

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14

net/core/filter.c

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