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-rw-r--r--kernel/bpf/trampoline.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/kernel/bpf/trampoline.c b/kernel/bpf/trampoline.c
index 6f7b939321d6..bf0906e1e2b9 100644
--- a/kernel/bpf/trampoline.c
+++ b/kernel/bpf/trampoline.c
@@ -964,6 +964,29 @@ void notrace __bpf_prog_exit_sleepable(struct bpf_prog *prog, u64 start,
rcu_read_unlock_trace();
}
+u64 notrace __bpf_prog_enter_struct_ops(struct bpf_prog *prog,
+ struct bpf_tramp_run_ctx *run_ctx)
+ __acquires(RCU)
+{
+ rcu_read_lock();
+ migrate_disable();
+
+ run_ctx->saved_run_ctx = bpf_set_run_ctx(&run_ctx->run_ctx);
+
+ return bpf_prog_start_time();
+}
+
+void notrace __bpf_prog_exit_struct_ops(struct bpf_prog *prog, u64 start,
+ struct bpf_tramp_run_ctx *run_ctx)
+ __releases(RCU)
+{
+ bpf_reset_run_ctx(run_ctx->saved_run_ctx);
+
+ update_prog_stats(prog, start);
+ migrate_enable();
+ rcu_read_unlock();
+}
+
void notrace __bpf_tramp_enter(struct bpf_tramp_image *tr)
{
percpu_ref_get(&tr->pcref);