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authorRoman Gushchin <guro@fb.com>2018-08-02 14:27:24 -0700
committerDaniel Borkmann <daniel@iogearbox.net>2018-08-03 00:47:32 +0200
commitcd3394317653837e2eb5c5d0904a8996102af9fc (patch)
tree7f0c16ba103be23baa66f94c18c851c62e2eb682 /kernel/bpf/core.c
parent7b5dd2bde72cd33313b63cf3ba1de6a9e443a65d (diff)
downloadlinux-cd3394317653837e2eb5c5d0904a8996102af9fc.tar.bz2
bpf: introduce the bpf_get_local_storage() helper function
The bpf_get_local_storage() helper function is used to get a pointer to the bpf local storage from a bpf program. It takes a pointer to a storage map and flags as arguments. Right now it accepts only cgroup storage maps, and flags argument has to be 0. Further it can be extended to support other types of local storage: e.g. thread local storage etc. Signed-off-by: Roman Gushchin <guro@fb.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'kernel/bpf/core.c')
-rw-r--r--kernel/bpf/core.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 9abcf25ebf9f..4d09e610777f 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -1795,6 +1795,7 @@ const struct bpf_func_proto bpf_get_current_comm_proto __weak;
const struct bpf_func_proto bpf_sock_map_update_proto __weak;
const struct bpf_func_proto bpf_sock_hash_update_proto __weak;
const struct bpf_func_proto bpf_get_current_cgroup_id_proto __weak;
+const struct bpf_func_proto bpf_get_local_storage_proto __weak;
const struct bpf_func_proto * __weak bpf_get_trace_printk_proto(void)
{