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Diffstat (limited to 'include/linux/bpf.h')
-rw-r--r--include/linux/bpf.h15
1 files changed, 9 insertions, 6 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 768b533ba48e..839dd8670a7a 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -640,8 +640,8 @@ static __always_inline unsigned int bpf_dispatcher_nop_func(
return bpf_func(ctx, insnsi);
}
#ifdef CONFIG_BPF_JIT
-int bpf_trampoline_link_prog(struct bpf_prog *prog);
-int bpf_trampoline_unlink_prog(struct bpf_prog *prog);
+int bpf_trampoline_link_prog(struct bpf_prog *prog, struct bpf_trampoline *tr);
+int bpf_trampoline_unlink_prog(struct bpf_prog *prog, struct bpf_trampoline *tr);
struct bpf_trampoline *bpf_trampoline_get(u64 key,
struct bpf_attach_target_info *tgt_info);
void bpf_trampoline_put(struct bpf_trampoline *tr);
@@ -688,11 +688,13 @@ void bpf_image_ksym_del(struct bpf_ksym *ksym);
void bpf_ksym_add(struct bpf_ksym *ksym);
void bpf_ksym_del(struct bpf_ksym *ksym);
#else
-static inline int bpf_trampoline_link_prog(struct bpf_prog *prog)
+static inline int bpf_trampoline_link_prog(struct bpf_prog *prog,
+ struct bpf_trampoline *tr)
{
return -ENOTSUPP;
}
-static inline int bpf_trampoline_unlink_prog(struct bpf_prog *prog)
+static inline int bpf_trampoline_unlink_prog(struct bpf_prog *prog,
+ struct bpf_trampoline *tr)
{
return -ENOTSUPP;
}
@@ -763,7 +765,9 @@ struct bpf_prog_aux {
u32 max_rdonly_access;
u32 max_rdwr_access;
const struct bpf_ctx_arg_aux *ctx_arg_info;
- struct bpf_prog *linked_prog;
+ struct mutex dst_mutex; /* protects dst_* pointers below, *after* prog becomes visible */
+ struct bpf_prog *dst_prog;
+ struct bpf_trampoline *dst_trampoline;
bool verifier_zext; /* Zero extensions has been inserted by verifier. */
bool offload_requested;
bool attach_btf_trace; /* true if attaching to BTF-enabled raw tp */
@@ -771,7 +775,6 @@ struct bpf_prog_aux {
bool sleepable;
bool tail_call_reachable;
enum bpf_tramp_prog_type trampoline_prog_type;
- struct bpf_trampoline *trampoline;
struct hlist_node tramp_hlist;
/* BTF_KIND_FUNC_PROTO for valid attach_btf_id */
const struct btf_type *attach_func_proto;