bpf: Separate bpf_get_[stack|stackid] for perf events BPF

[linux-block.git] / include / linux / bpf.h

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index f9c4bb08f61677295f0a5e90ac4df86467a947cc..8357be3491333c78ff3007db6c4182fab258b351 100644 (file)
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -107,6 +107,9 @@ struct bpf_map_ops {
        /* BTF name and id of struct allocated by map_alloc */
        const char * const map_btf_name;
        int *map_btf_id;
+
+       /* bpf_iter info used to open a seq_file */
+       const struct bpf_iter_seq_info *iter_seq_info;
 };
 
 struct bpf_map_memory {
@@ -1207,12 +1210,18 @@ int bpf_obj_get_user(const char __user *pathname, int flags);
        int __init bpf_iter_ ## target(args) { return 0; }
 
 struct bpf_iter_aux_info {
+       struct bpf_map *map;
 };
 
+typedef int (*bpf_iter_check_target_t)(struct bpf_prog *prog,
+                                      struct bpf_iter_aux_info *aux);
+
 #define BPF_ITER_CTX_ARG_MAX 2
 struct bpf_iter_reg {
        const char *target;
+       bpf_iter_check_target_t check_target;
        u32 ctx_arg_info_size;
+       enum bpf_iter_link_info req_linfo;
        struct bpf_ctx_arg_aux ctx_arg_info[BPF_ITER_CTX_ARG_MAX];
        const struct bpf_iter_seq_info *seq_info;
 };
@@ -1223,6 +1232,13 @@ struct bpf_iter_meta {
        u64 seq_num;
 };
 
+struct bpf_iter__bpf_map_elem {
+       __bpf_md_ptr(struct bpf_iter_meta *, meta);
+       __bpf_md_ptr(struct bpf_map *, map);
+       __bpf_md_ptr(void *, key);
+       __bpf_md_ptr(void *, value);
+};
+
 int bpf_iter_reg_target(const struct bpf_iter_reg *reg_info);
 void bpf_iter_unreg_target(const struct bpf_iter_reg *reg_info);
 bool bpf_iter_prog_supported(struct bpf_prog *prog);
@@ -1659,6 +1675,8 @@ extern const struct bpf_func_proto bpf_get_current_comm_proto;
 extern const struct bpf_func_proto bpf_get_stackid_proto;
 extern const struct bpf_func_proto bpf_get_stack_proto;
 extern const struct bpf_func_proto bpf_get_task_stack_proto;
+extern const struct bpf_func_proto bpf_get_stackid_proto_pe;
+extern const struct bpf_func_proto bpf_get_stack_proto_pe;
 extern const struct bpf_func_proto bpf_sock_map_update_proto;
 extern const struct bpf_func_proto bpf_sock_hash_update_proto;
 extern const struct bpf_func_proto bpf_get_current_cgroup_id_proto;