Re: [PATCH] bpf: cgroup: annotate pointers in struct cgroup_bpf with __rcu
From: Alexei Starovoitov <hidden>
Date: 2016-12-16 18:20:41
On Thu, Dec 15, 2016 at 10:53:21AM +0100, Daniel Mack wrote:
The member 'effective' in 'struct cgroup_bpf' is protected by RCU. Annotate it accordingly to squelch a sparse warning. Signed-off-by: Daniel Mack <daniel@zonque.org>
Acked-by: Alexei Starovoitov <ast@kernel.org> was only wondering whether this is really needed for net or can wait till net-next.
quoted hunk ↗ jump to hunk
--- include/linux/bpf-cgroup.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)diff --git a/include/linux/bpf-cgroup.h b/include/linux/bpf-cgroup.h index 7b6e5d1..92bc89a 100644 --- a/include/linux/bpf-cgroup.h +++ b/include/linux/bpf-cgroup.h@@ -20,7 +20,7 @@ struct cgroup_bpf { * when this cgroup is accessed. */ struct bpf_prog *prog[MAX_BPF_ATTACH_TYPE]; - struct bpf_prog *effective[MAX_BPF_ATTACH_TYPE]; + struct bpf_prog __rcu *effective[MAX_BPF_ATTACH_TYPE]; }; void cgroup_bpf_put(struct cgroup *cgrp);-- 2.9.3