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authorNamhyung Kim <namhyung@kernel.org>2021-06-27 08:36:27 -0700
committerDaniel Borkmann <daniel@iogearbox.net>2021-06-28 15:43:02 +0200
commit95b861a7935bf75f647959073093ab8058b88c26 (patch)
tree7ffb257f081eb1f6bad9f54c86635f01afbcc438 /kernel/trace/bpf_trace.c
parent328aac5ecd119ede3633f7d17969b1ff34ccc784 (diff)
bpf: Allow bpf_get_current_ancestor_cgroup_id for tracing
Allow the helper to be called from tracing programs. This is needed to handle cgroup hiererachies in the program. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20210627153627.824198-1-namhyung@kernel.org
Diffstat (limited to 'kernel/trace/bpf_trace.c')
-rw-r--r--kernel/trace/bpf_trace.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index 7a52bc172841..64bd2d84367f 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -1017,6 +1017,8 @@ bpf_tracing_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
#ifdef CONFIG_CGROUPS
case BPF_FUNC_get_current_cgroup_id:
return &bpf_get_current_cgroup_id_proto;
+ case BPF_FUNC_get_current_ancestor_cgroup_id:
+ return &bpf_get_current_ancestor_cgroup_id_proto;
#endif
case BPF_FUNC_send_signal:
return &bpf_send_signal_proto;