diff options
| author | Yonghong Song <yhs@fb.com> | 2022-11-24 08:32:11 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2022-11-24 23:27:13 +0300 |
| commit | 01685c5bddaa6df3d662c8afed5e5289fcc68e5a (patch) | |
| tree | 449b395cbda9dc78cb39ae8cd1bfe15ee0e1aa16 /kernel/trace | |
| parent | 5a0f663f0189cf9e031e444f97c029717a99548d (diff) | |
| download | linux-01685c5bddaa6df3d662c8afed5e5289fcc68e5a.tar.xz | |
bpf: Introduce might_sleep field in bpf_func_proto
Introduce bpf_func_proto->might_sleep to indicate a particular helper
might sleep. This will make later check whether a helper might be
sleepable or not easier.
Acked-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20221124053211.2373553-1-yhs@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/bpf_trace.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c index 5b9008bc597b..3bbd3f0c810c 100644 --- a/kernel/trace/bpf_trace.c +++ b/kernel/trace/bpf_trace.c @@ -1485,9 +1485,9 @@ bpf_tracing_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) case BPF_FUNC_get_task_stack: return &bpf_get_task_stack_proto; case BPF_FUNC_copy_from_user: - return prog->aux->sleepable ? &bpf_copy_from_user_proto : NULL; + return &bpf_copy_from_user_proto; case BPF_FUNC_copy_from_user_task: - return prog->aux->sleepable ? &bpf_copy_from_user_task_proto : NULL; + return &bpf_copy_from_user_task_proto; case BPF_FUNC_snprintf_btf: return &bpf_snprintf_btf_proto; case BPF_FUNC_per_cpu_ptr: |