Peter Zijlstra 8fe80e184c UPSTREAM: bpf: check that BPF programs run with preemption disabled ...

Introduce cant_sleep() macro for annotation of functions that
cannot sleep.

Use it in BPF_PROG_RUN to catch execution of BPF programs in
preemptable context.

Suggested-by: Jann Horn <jannh@google.com>
Change-Id: If46f95bfbb77de85daf1db948927a72460010d07
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Naveen <133593113+elohim-etz@users.noreply.github.com>

2025-12-24 11:49:12 +00:00

32 KiB

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