selftests/bpf: Test direct reading/writing read-only percpu_array map

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Verify these two cases:

1. Direct reading the data of read-only percpu data's percpu_array map
   is allowed.
2. Direct writing the data of read-only percpu data's percpu_array map
   is disallowed.

Assisted-by: Codex:gpt-5.5-xhigh
Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20260813152324.97937-9-leon.hwang@linux.dev

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Leon Hwang 2026-08-13 23:23:21 +08:00 • committed by Andrii Nakryiko

parent 4c9241bd73

commit 3993d5beef

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tools/testing/selftests/bpf/prog_tests/global_data_init.c

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