From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roman Gushchin Subject: [PATCH v2 bpf-next 04/10] bpf: don't allow create maps of per-cpu cgroup local storages Date: Tue, 25 Sep 2018 16:21:08 +0100 Message-ID: <20180925152114.13537-5-guro@fb.com> References: <20180925152114.13537-1-guro@fb.com> Mime-Version: 1.0 Content-Type: text/plain Cc: Song Liu , , , Roman Gushchin , Daniel Borkmann , Alexei Starovoitov To: Return-path: Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:28705 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729622AbeIYVaC (ORCPT ); Tue, 25 Sep 2018 17:30:02 -0400 In-Reply-To: <20180925152114.13537-1-guro@fb.com> Sender: netdev-owner@vger.kernel.org List-ID: Explicitly forbid creating map of per-cpu cgroup local storages. This behavior matches the behavior of shared cgroup storages. Signed-off-by: Roman Gushchin Cc: Daniel Borkmann Cc: Alexei Starovoitov --- kernel/bpf/map_in_map.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/bpf/map_in_map.c b/kernel/bpf/map_in_map.c index 3bfbf4464416..99d243e1ad6e 100644 --- a/kernel/bpf/map_in_map.c +++ b/kernel/bpf/map_in_map.c @@ -24,7 +24,8 @@ struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd) * in the verifier is not enough. */ if (inner_map->map_type == BPF_MAP_TYPE_PROG_ARRAY || - inner_map->map_type == BPF_MAP_TYPE_CGROUP_STORAGE) { + inner_map->map_type == BPF_MAP_TYPE_CGROUP_STORAGE || + inner_map->map_type == BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE) { fdput(f); return ERR_PTR(-ENOTSUPP); } -- 2.17.1